112607709 abs electrical

2009 BRAKES

ABS - Electrical Diagnostics - Grand Caravan, Town & Country

DIAGNOSTIC CODE INDEX

DIAGNOSTIC CODE INDEX DTC DESCRIPTIONC0021 BRAKE BOOSTER PERFORMANCEC100A LEFT FRONT WHEEL SPEED SENSOR CIRCUITC1011 LEFT FRONT WHEEL SPEED SENSOR SIGNAL ERRATIC PERFORMANCEC1014 LEFT FRONT WHEEL SPEED COMPARATIVE PERFORMANCEC1015 RIGHT FRONT WHEEL SPEED SENSOR CIRCUITC101C RIGHT FRONT WHEEL SPEED SENSOR SIGNAL ERRATIC PERFORMANCEC101F RIGHT FRONT WHEEL SPEED COMPARATIVE PERFORMANCEC1020 LEFT REAR WHEEL SPEED SENSOR CIRCUITC1027 LEFT REAR WHEEL SPEED SENSOR SIGNAL ERRATIC PERFORMANCEC102A LEFT REAR WHEEL SPEED COMPARATIVE PERFORMANCEC102B RIGHT REAR WHEEL SPEED SENSOR CIRCUITC102C RIGHT REAR WHEEL SPEED SENSOR CIRCUIT PERFORMANCEC1032 RIGHT REAR WHEEL SPEED SENSOR SIGNAL ERRATIC PERFORMANCEC1035 RIGHT REAR WHEEL SPEED COMPARATIVE PERFORMANCEC1041 LEFT FRONT TONE WHEEL PERFORMANCEC1042 RIGHT FRONT TONE WHEEL PERFORMANCEC1043 LEFT REAR TONE WHEEL PERFORMANCEC1044 RIGHT REAR TONE WHEEL PERFORMANCEC1046 LEFT FRONT WHEEL PRESSURE PHASE MONITORINGC1047 RIGHT FRONT WHEEL PRESSURE PHASE MONITORINGC1048 LEFT REAR WHEEL PRESSURE PHASE MONITORINGC1049 RIGHT REAR WHEEL PRESSURE PHASE MONITORINGC1073 ABS PUMP MOTOR CONTROL CIRCUITC107C BRAKE PEDAL SWITCH 1/2 STUCKC107D BRAKE PEDAL SWITCH 1/2 CORRELATIONC1082 VACUUM PRESSURE SENSOR CIRCUITC1083 VACUUM PRESSURE SENSOR CIRCUIT PERFORMANCEC1210 G SENSOR INPUT CIRCUIT PERFORMANCEC1219 STEERING ANGLE SENSOR ERRATIC PERFORMANCEC121A STEERING ANGLE SENSOR NOT INITIALIZEDC121C TORQUE REQUEST SIGNAL DENIEDC121D BRAKE PRESSURE SENSOR CIRCUITC121E BRAKE PRESSURE SENSOR COMPARATIVE PERFORMANCE

2009 Chrysler Town & Country LX

2009 BRAKES ABS - Electrical Diagnostics - Grand Caravan, Town & Country



steve

Monday, May 30, 2011 12:04:33 PM Page 1 2006 Mitchell Repair Information Company, LLC.

steve


DIAGNOSIS AND TESTING

C0021-BRAKE BOOSTER PERFORMANCE

C1231 DRIVE TEST: STEERING ANGLE SENSORC1232 DRIVE TEST: PRESSURE SENSORC1234 DRIVE TEST: SENSOR CLUSTER INSTALLATIONC1238 DRIVE TEST: UNSUCCESSFULC1239 EMISSIONS ROLLS TEST ACTIVEC123A ESP SYSTEM SENSORS CALIBRATIONC123B ESP SYSTEM CONTROL TOO LONGC123C DYNAMICS SENSOR MOUNTING/INSTALLATION PERFORMANCEC123F STEERING ANGLE SENSOR COMPARATIVE PERFORMANCEC1240 STEERING ANGLE SENSOR OVERTRAVEL PERFORMANCEC1243 G SENSOR NOT INITIALIZEDC2100 BATTERY VOLTAGE LOWC2101 BATTERY VOLTAGE HIGHC2114 DYNAMICS SENSOR SUPPLY VOLTAGE LOWC2115 DYNAMICS SENSOR SUPPLY VOLTAGE HIGHC2116 ABS PUMP MOTOR SUPPLY LOW VOLTAGEC2200 ANTI-LOCK BRAKE MODULE INTERNALC2202 ORIGINAL VIN MISMATCH/MISSINGC2205 STEERING ANGLE SENSOR INTERNALC2206 VEHICLE CONFIGURATION MISMATCHU0002 CAN C BUS OFF PERFORMANCEU0100 LOST COMMUNICATION WITH ECM/PCMU0101 LOST COMMUNICATION WITH TCMU0125 LOST COMMUNICATION WITH DYNAMICS SENSORU0126 LOST COMMUNICATION WITH STEERING ANGLE SENSORU0141 LOST COMMUNICATION WITH FRONT CONTROL MODULE (TIPM)U0401 IMPLAUSIBLE DATA RECEIVED FROM ECM/PCMU0402 IMPLAUSIBLE DATA RECEIVED FROM TCMU0429 IMPLAUSIBLE DATA RECEIVED FROM SCMU1003 ESP CAN C BUS PERFORMANCEU1004 CAN C BUS TRANSMIT PERFORMANCEU1104 CAN C BUS CRC PERFORMANCEU140E IMPLAUSIBLE VEHICLE CONFIGURATION DATA RECEIVEDU1501 IMPLAUSIBLE MESSAGE DATA LENGTH RECEIVED FROM PCMU1502 IMPLAUSIBLE MESSAGE DATA LENGTH RECEIVED FROM TCMU1503 IMPLAUSIBLE MESSAGE DATA LENGTH RECEIVED FROM TIPM



steve


Fig. 1: Vacuum Pressure Sensor - Circuit Schematic Courtesy of CHRYSLER LLC

For complete wiring diagrams refer to:



steve


SYSTEM WIRING DIAGRAMS for Town & Country. SYSTEM WIRING DIAGRAMS for Grand Caravan.

When Monitored:

With the ignition on.

Set Condition:

When the Vacuum Pressure Sensor indicates a failure in the Vacuum Booster. After the cold start phase (i.e. 3 min after ignition-on) and if the engine is running above 600 RPM there should be at least -135 mbar (1958 psi) of differential pressure in the vacuum-chamber for boosting the pedal force. If the pressure remains below this value for more than A) 1 sec, if brake is applied, B) 2 min, if brake is not applied, but throttle position is below 30%, C) 10 min, if brake is not applied and throttle position is over 30%, and vehicle speed is over 1 mph (2 km/h), a booster vacuum failure is reported.

Diagnostic Test

1. CHECK FOR A DTC C0021-BRAKE BOOSTER PERFORMANCE

1. Turn the ignition on. 2. With the scan tool, read and record the DTCs. 3. With the scan tool, read and record Environmental Data to help identify the conditions in which the

DTC was set. 4. With the scan tool, erase the DTCs. 5. Start the engine. 6. Depress and release the brake pedal. 7. With the scan tool, read and record the DTCs.

Does the scan tool display: C0021-BRAKE BOOSTER PERFORMANCE?

Yes

Go to Step 2.

No

Possible Causes PINCHED, CUT OR OPEN VACUUM SUPPLY LINEBRAKE BOOSTERVACUUM PRESSURE SENSOR

NOTE: This DTC must be active for the results of this test to be valid.



steve


Perform the ABS INTERMITTENT CONDITION TEST. Refer to ABS-INTERMITTENT CONDITION TEST.

2. CHECK FOR PINCHED VACUUM SUPPLY LINE 1. Turn the ignition off. 2. Check the vacuum supply line to brake booster for a pinched, cut or open hose.

Were any problems found?

Yes

Repair as necessary. Perform ABS VERIFICATION TEST. See ABS VERIFICATION TEST.

No

Go to Step 3. 3. CHECK FOR VACUUM PRESSURE SIGNAL CHANGE

1. Turn the ignition on. 2. Remove the Vacuum Pressure Sensor from the Booster. 3. Connect a vacuum pump to the Vacuum Pressure Sensor. 4. Apply vacuum to the Vacuum Pressure Sensor and watch for signal change.

Is the voltage signal changing on the scan tool as vacuum is being applied?

Yes

Go to Step 4.

No

Replace the Vacuum Pressure Sensor in accordance with the Service Information. Perform ABS VERIFICATION TEST. See ABS VERIFICATION TEST.

4. CHECK BRAKE BOOSTER CHECK VALVE 1. Remove the Brake Booster Check Valve. 2. Apply vacuum to the booster side of the check valve.

Is the Brake Booster Check Valve holding vacuum?

Yes

Replace the Brake Booster in accordance with the Service Information. Perform ABS VERIFICATION TEST. See ABS VERIFICATION TEST.



steve


No

Replace Brake Booster Check Valve. Perform ABS VERIFICATION TEST. See ABS VERIFICATION TEST.

C100A-LEFT FRONT WHEEL SPEED SENSOR CIRCUIT

Fig. 2: Left Front Wheel Speed Sensor - Circuit Schematic



steve


Courtesy of CHRYSLER LLC



When Monitored:


Set Condition:

When the Left Front Wheel Speed Sensor circuit fails the diagnostic test.

Diagnostic Test

1. CHECK FOR DTC C100A LEFT FRONT WHEEL SPEED SENSOR CIRCUIT

1. Turn the ignition on. 2. With the scan tool, record and erase DTCs. 3. Cycle the ignition switch from off to on. 4. With the scan tool, read DTCs.

Does the scan tool display: C100A LEFT FRONT WHEEL SPEED SENSOR CIRCUIT?

Yes

Go to Step 2.

No

The condition that caused the symptom is currently not present. Inspect the related wiring for

Possible Causes CONNECTOR/TERMINAL DAMAGE(B9) LEFT FRONT WSS SUPPLY CIRCUIT SHORTED TO VOLTAGE, GROUND OR OPEN(B8) LEFT FRONT WSS SIGNAL CIRCUIT SHORTED TO VOLTAGE, GROUND, OR OPEN(B8) LEFT FRONT WSS SIGNAL CIRCUIT AND (B9) LEFT FRONT WSS SUPPLY CIRCUIT SHORTED TOGETHERLEFT FRONT WSSANTI-LOCK BRAKE MODULE




steve


a possible intermittent condition. Look for any chafed, pierced, pinched, or partially broken wires.


2. CHECK CONNECTOR/TERMINAL FOR DAMAGE

1. Turn the ignition off. 2. Inspect the Anti-Lock Brake Module harness connector, Left Front WSS, and Left Front WSS

harness connector.

Is the Left Front WSS or any of the connectors/terminals damaged?

Yes


No

Go to Step 3. 3. CHECK (B9) LEFT FRONT WSS SUPPLY CIRCUIT VOLTAGE

NOTE: Check all terminals for broken, bent, pushed out, or corroded terminals.



steve


Fig. 3: Measuring Voltage Between Left Front WSS Supply Circuit & Ground Courtesy of CHRYSLER LLC

1. Disconnect the Left Front WSS harness connector. 2. Turn the ignition on. 3. Measure the voltage between the (B9) Left Front WSS Supply circuit and ground.

Is the voltage above 10 volts?

Yes

Go to Step 6.

No



steve


Go to Step 4. 4. CHECK (B9) LEFT FRONT WSS SUPPLY CIRCUIT SHORT TO GROUND

Fig. 4: Checking Left Front WSS Supply Circuit Short To Ground Courtesy of CHRYSLER LLC

1. Disconnect the Anti-Lock Brake Module harness connector. 2. Using a 12-volt test light connected to 12-volts, probe the (B9) Left Front WSS Supply circuit.

Does the test light illuminate brightly?

Yes

Repair the (B9) Left Front WSS Supply circuit for a short to ground. Perform ABS VERIFICATION TEST. See ABS VERIFICATION TEST.

No



steve


Go to Step 5. 5. CHECK (B9) LEFT FRONT WSS SUPPLY CIRCUIT OPEN

Fig. 5: Checking Left Front WSS Supply Circuit Short To Ground Courtesy of CHRYSLER LLC

1. Connect a jumper wire between ground and the (B9) Left Front WSS Supply circuit in the Anti-Lock Brakes Module harness connector.

2. Using a 12-volt test light connected to 12-volts, probe the (B9) Left Front WSS Supply circuit.


Yes

Go to Step 6.

No

Repair the (B9) Left Front WSS Supply circuit for an open.



steve


Perform ABS VERIFICATION TEST. See ABS VERIFICATION TEST. 6. CHECK (B8) LEFT FRONT WSS SIGNAL CIRCUIT SHORT TO VOLTAGE

Fig. 6: Measuring Voltage Between Left Front WSS Signal Circuit & Ground Courtesy of CHRYSLER LLC

1. Turn the ignition on. 2. Measure the voltage between the (B8) Left Front WSS Signal circuit and ground.

Is the voltage above one volt?

Yes

Repair the (B8) Left Front WSS Signal circuit for a short to voltage. Perform ABS VERIFICATION TEST. See ABS VERIFICATION TEST.

No

Go to Step 7. 7. CHECK (B8) LEFT FRONT WSS SIGNAL CIRCUIT SHORT TO GROUND



steve


Fig. 7: Checking Left Front WSS Signal Circuit Short To Ground Courtesy of CHRYSLER LLC

1. Turn the ignition off. 2. If not done previously, disconnect the Anti-Lock Brake Module harness connector. 3. Using a 12-volt test light connected to 12-volts, probe the (B8) Left Front WSS Signal circuit.


Yes

Repair the (B8) Left Front WSS Signal circuit for a short to ground. Perform ABS VERIFICATION TEST. See ABS VERIFICATION TEST.



steve


No

Go to Step 8. 8. CHECK (B8) LEFT FRONT WSS SIGNAL CIRCUIT OPEN

Fig. 8: Checking Left Front WSS Signal Circuit Short To Ground Courtesy of CHRYSLER LLC

1. Connect a jumper wire between ground and the (B8) Left Front WSS Signal circuit in the Anti-Lock Brakes Module harness connector.

2. Using a 12-volt test light connected to 12-volts, probe the (B8) Left Front WSS Signal circuit.




steve


Yes

Go to Step 9.

No

Repair the (B8) Left Front WSS Signal circuit for an open. Perform ABS VERIFICATION TEST. See ABS VERIFICATION TEST.

9. CHECK (B8) LEFT FRONT WSS SIGNAL CIRCUIT AND (B9) LEFT FRONT WSS SUPPLY CIRCUIT SHORT TOGETHER

Fig. 9: Measuring Resistance Between Left Front WSS Signal Circuit & Left Front WSS Supply Circuit Courtesy of CHRYSLER LLC

1. Remove all jumper wires. 2. Measure the resistance between the (B8) Left Front WSS Signal circuit and the (B9) Left Front

WSS Supply circuit.

Is the resistance above 5.0 ohms?



steve


Yes

Go to Step 10.

No

Repair the (B8) Left Front WSS Signal circuit and the (B9) Left Front WSS Supply circuit for a short together.

Perform ABS VERIFICATION TEST. See ABS VERIFICATION TEST. 10. LEFT FRONT WHEEL SPEED SENSOR

1. Replace the Left Front Wheel Speed Sensor in accordance with the Service Information. 2. Perform ABS VERIFICATION TEST. See ABS VERIFICATION TEST.

3. Road test the vehicle over 40 km/h (25 mph).

4. With the scan tool, read ABS DTCs.

Did DTC C100A LEFT FRONT WHEEL SPEED SENSOR CIRCUIT reset?

Yes

Replace the Anti-Lock Brakes Module in accordance with the Service Information. Perform ABS VERIFICATION TEST. See ABS VERIFICATION TEST.

No

Test Complete.

C1011-LEFT FRONT WHEEL SPEED SENSOR SIGNAL ERRATIC PERFORMANCE



When Monitored:


CAUTION: Make sure brake capability is available before road testing.

NOTE: Vehicle must be driven above 40 km/h (25 mph) for set conditions to be meet.



steve


Set Condition:

When the Left Front Wheel Speed Sensor (WSS) Signal is intermittently missing while vehicle speed is above 40 km/h (25 mph) or erratic wheel speed signal during acceleration or sensed wheel speed is different from other wheels.

Diagnostic Test

1. CHECK FOR DTC C1011-LEFT FRONT WHEEL SPEED SENSOR SIGNAL ERRATIC PERFORMANCE

1. Turn the ignition on. 2. With the scan tool, read and record DTCs. 3. With the scan tool, read and record Environmental data to help identify the conditions in which the

DTC was set. 4. With the scan tool, erase DTCs. 5. Start the engine.


7. With the scan tool, read DTCs.

Does the scan tool display: C1011-LEFT FRONT WHEEL SPEED SENSOR SIGNAL ERRATIC PERFORMANCE active?

Possible Causes LEFT FRONT WSS LOOSE - B8, B9 CIRCUITS/CONNECTOR/TERMINAL DAMAGELEFT FRONT TONE WHEEL DAMAGELEFT FRONT WHEEL/ BEARING DAMAGEIMPROPER LEFT FRONT TIRE PRESSURE/MISMATCHED TIRESLEFT FRONT WSSANTI-LOCK BRAKE MODULE


NOTE: If DTC C100A Left Front Wheel Speed Sensor Circuit is present it must be repaired before continuing.

CAUTION: Ensure brake capability is available before road testing.

NOTE: Vehicle must be driven above 40 km/h (25 mph) for set conditions to be met.



steve


Yes

Go to Step 3.

No

Go to Step 2. 2. CHECK WHEEL SPEED SENSOR SIGNALS

1. Turn the ignition on. 2. With the scan tool, monitor and graph ALL the WSS speeds and compare graph while an assistant

drives the vehicle.

3. Slowly accelerate as straight as possible from a stop to 40 km/h (25 mph).

Is the Left Front WSS speed showing 0 km/h (0 mph) or not matching other wheels or showing erratic behavior?

Yes

Go to Step 3.

No


3. CHECK FOR IMPROPER LEFT FRONT TIRE PRESSURE/MISMATCHED TIRES 1. Turn the ignition off. 2. Check and adjust the Left Front Tire pressure. 3. Check and adjust all other tire pressures. 4. Inspect for mismatched tires on vehicle.

Is the Left Front Tire improperly inflated or mismatched tires on vehicle?

Yes


No

Go to Step 4.

NOTE: If graph shows periodic dropouts pay close attention to the tone wheel.



steve


4. CHECK LEFT FRONT WSS LOOSENESS, INSPECT B8, B9 CIRCUITS/TERMINALS FOR DAMAGE

1. Inspect the Anti-Lock Brake Module harness connector, Left Front WSS, and Left Front WSS harness connector

2. Inspect the Left Front WSS for looseness, excessive corrosion and not properly fastened. 3. Inspect the (B8) Left Front WSS Signal and (B9) Left Front WSS Supply circuits between the Left

Front WSS and Anti-Lock Brake Module for damage.

Is the Left Front WSS loose or any of the wiring/connectors/terminals damaged?

Yes


No

Go to Step 5. 5. CHECK LEFT FRONT WHEEL SPEED SENSOR FOR DAMAGE

1. Remove the Left Front Wheel Speed Sensor 2. Inspect the Left Front Wheel Speed Sensor face for damage.

Is the Left Front Wheel Speed Sensor damaged?

Yes

Replace sensor and hub assembly. Perform ABS VERIFICATION TEST. See ABS VERIFICATION TEST.

No

Go to Step 6. 6. CHECK LEFT FRONT TONE WHEEL/BEARING FOR DAMAGE

1. Inspect the Left Front Tone Wheel/Bearing for damage, missing teeth, cracks, corrosion or looseness.

Is the Left Front Tone Wheel/Bearing damaged?

NOTE: Check all terminals for broken, bent, pushed out, or corroded terminals

NOTE: The Tone Wheel teeth should be perfectly square, not bent, or nicked.



steve


Yes


No

Go to Step 7. 7. CHECK LEFT FRONT WHEEL BEARING FOR DAMAGE

1. Inspect the Left Front wheel bearing for excessive runout or clearance. Refer to Front Suspension/Front/HUB AND BEARING - Diagnosis and Testing .

Is the Left Front Wheel Bearing Damaged?

Yes


No

Go to Step 8. 8. LEFT FRONT WHEEL SPEED SENSOR

1. Replace the Left Front Wheel Speed Sensor in accordance with the Service Information. 2. Perform ABS VERIFICATION TEST. See ABS VERIFICATION TEST. 3. Road test the vehicle over 40 km/h (25 mph).


Did DTC C1011-LEFT FRONT WHEEL SPEED SENSOR SIGNAL ERRATIC PERFORMANCE reset?

Yes


No

Test Complete.




steve


C1014-LEFT FRONT WHEEL SPEED COMPARATIVE PERFORMANCE



When Monitored:


Set Condition:

When the Left Front Wheel Speed Sensor (WSS) Signal reading is different from the readings received from the other WSS's at a vehicle speed above 40 km/h (25 mph). The Anti-Lock Brake Module compares WSS readings from side-to-side on an axle and front-to-rear.

Diagnostic Test

1. CHECK FOR DTC C1014-LEFT FRONT WHEEL SPEED COMPARATIVE PERFORMANCE

1. Turn the ignition on. 2. With the scan tool, record and erase DTCs.



Does the scan tool display: C1014-LEFT FRONT WHEEL SPEED COMPARATIVE

Possible Causes LEFT FRONT WSS LOOSE - B8, B9 CIRCUITS/CONNECTOR/TERMINAL DAMAGEIMPROPER LEFT FRONT TIRE PRESSURE/MISMATCHED TIRESLEFT FRONT TONE WHEEL/BEARING DAMAGELEFT FRONT WSSANTI-LOCK BRAKE MODULE






steve


PERFORMANCE active?

Yes

Go to Step 3.

No



drives the vehicle.


Is the Left Front WSS speed showing 0 km/h (0 mph) or not matching other wheels or showing erratic behavior?

Yes

Go to Step 3.

No

The condition that caused the symptom is currently not present. Inspect the related wiring for a possible intermittent condition. Look for any chafed, pierced, pinched, or partially broken wires.


3. CHECK FOR IMPROPER LEFT FRONT TIRE PRESSURE/MISMATCHED TIRES 1. Turn the ignition off. 2. Check and adjust the Left Front Tire pressure. 3. Check and adjust all other tire pressures. 4. Inspect for mismatched tires on vehicle.

Is the Left Front Tire improperly inflated or mismatched tires on vehicle?

Yes

Repair as necessary




steve


Perform ABS VERIFICATION TEST. See ABS VERIFICATION TEST.

No

Go to Step 4. 4. CHECK LEFT FRONT WSS LOOSENESS, INSPECT B8, B9 CIRCUITS/TERMINALS FOR

DAMAGE

1. Inspect the Anti-Lock Brake Module harness connector, Left Front WSS, and Left Front WSS harness connector.

2. Inspect the Left Front WSS for looseness, excessive corrosion and not properly fastened. 3. Inspect the (B8) Left Front WSS Signal and (B9) Left Front WSS Supply circuits between the Left

Front WSS and Anti-Lock Brake Module for damage.

Is the Left Front WSS loose or any of the wiring/connectors/terminals damaged?

Yes


No

Go to Step 5. 5. CHECK LEFT FRONT WHEEL SPEED SENSOR FOR DAMAGE

1. Remove the Left Front Wheel Speed Sensor 2. Inspect the Left Front Wheel Speed Sensor face for damage.

Is the Left Front Wheel Speed Sensor damaged?

Yes


No

Go to Step 6. 6. CHECK LEFT FRONT TONE WHEEL/BEARING FOR DAMAGE

1. Inspect the Left Front Tone Wheel/Bearing for damage, missing teeth, cracks, corrosion or looseness.




steve


Is the Left Front Tone Wheel/Bearing damaged?

Yes


No

Go to Step 7. 7. LEFT FRONT WHEEL SPEED SENSOR

1. Replace the Left Front Wheel Speed Sensor in accordance with the Service Information. 2. Perform ABS VERIFICATION TEST. See ABS VERIFICATION TEST. 3. Road test the vehicle over 40 km/h (25 mph).


Did DTC C1014-LEFT FRONT WHEEL SPEED COMPARATIVE PERFORMANCE reset?

Yes

Replace the Anti-Lock Brake Module in accordance with the Service Information. Perform ABS VERIFICATION TEST. See ABS VERIFICATION TEST.

No

Test Complete.

C1015-RIGHT FRONT WHEEL SPEED SENSOR CIRCUIT





steve


Fig. 10: Left Front Wheel Speed Sensor - Circuit Schematic Courtesy of CHRYSLER LLC





steve


When Monitored:


Set Condition:

If the Right Front Wheel Speed Sensor circuit fails the diagnostic test.

Diagnostic Test

1. CHECK FOR DTC C1015 RIGHT FRONT WHEEL SPEED SENSOR CIRCUIT


Does the scan tool display: C1015 RIGHT FRONT WHEEL SPEED SENSOR CIRCUIT?

Yes

Go to Step 2.

No




Possible Causes WIRING HARNESS, TERMINAL, CONNECTOR DAMAGE(B7) RIGHT FRONT WSS 12 VOLT SUPPLY CIRCUIT SHORTED TO VOLTAGE, GROUND, OR OPEN(B6) RIGHT FRONT WSS SIGNAL CIRCUIT SHORTED TO VOLTAGE, GROUND, OR OPEN(B6) RIGHT FRONT WSS SIGNAL CIRCUIT SHORTED TO THE (B7) RIGHT FRONT WSS 12 VOLT SUPPLY CIRCUITRIGHT FRONT WSSANTI-LOCK BRAKES MODULE




steve


1. Turn the ignition off. 2. Inspect the Anti-Lock Brake Module harness connector, Right Front WSS, and Right Front WSS

harness connector.

Is the Right Front WSS or any of the connectors/terminals damaged?

Yes


No

Go to Step 3. 3. CHECK (B7) RIGHT FRONT WSS 12 VOLT SUPPLY CIRCUIT VOLTAGE




steve


Fig. 11: Measuring Voltage Of Right Front WSS 12 Volt Supply Circuit Courtesy of CHRYSLER LLC

1. Disconnect the Right Front WSS harness connector. 2. Turn the ignition on. 3. Measure the voltage of the (B7) Right Front WSS 12 Volt Supply circuit.

Is the voltage above 10.0 volts?

Yes

Go to Step 6.

No

Go to Step 4. 4. CHECK (B7) RIGHT FRONT WSS 12 VOLT SUPPLY CIRCUIT FOR A SHORT TO GROUND



steve


Fig. 12: Checking Right Front WSS 12 Volt Supply Circuit For A Short To Ground Courtesy of CHRYSLER LLC

1. Turn the ignition off. 2. Disconnect the Right Front WSS harness connector. 3. Disconnect the Anti-Lock Brake Module harness connector. 4. Using a 12-volt test light connected to 12-volts, probe the (B7) Right Front WSS Supply circuit.


Yes

Repair the (B7) Right Front WSS Supply circuit for a short to ground. Perform ABS VERIFICATION TEST. See ABS VERIFICATION TEST.



steve


No

Go to Step 5. 5. CHECK (B7) RIGHT FRONT WSS 12 VOLT SUPPLY CIRCUIT FOR AN OPEN

Fig. 13: Checking Right Front WSS 12 Volt Supply Circuit For A Short To Ground Courtesy of CHRYSLER LLC

1. Connect a jumper wire between ground and the (B7) Right Front WSS Supply circuit in the Anti-Lock Brakes Module harness connector.

2. Using a 12-volt test light connected to 12-volts, probe the (B7) Right Front WSS Supply circuit.


Yes



steve



No

Repair the (B7) Right Front WSS Supply circuit for an open. Perform ABS VERIFICATION TEST. See ABS VERIFICATION TEST.

6. CHECK (B6) RIGHT FRONT WSS SIGNAL CIRCUIT SHORT TO GROUND

Fig. 14: Checking Right Front WSS Signal Circuit Short To Ground Courtesy of CHRYSLER LLC

1. Turn the ignition off. 2. If not done previously, disconnect the Anti-Lock Brake Module harness connector



steve


3. Using a 12-volt test light connected to 12-volts, probe the (B6) Right Front WSS Signal circuit.


Yes

Repair the (B6) Right Front WSS Signal circuit for a short to ground. Perform ABS VERIFICATION TEST. See ABS VERIFICATION TEST.

No

Go to Step 7. 7. CHECK (B6) RIGHT FRONT WSS SIGNAL CIRCUIT OPEN



steve


Fig. 15: Checking Right Front WSS Signal Circuit Short To GroundCourtesy of CHRYSLER LLC

1. Connect a jumper wire between ground and the (B6) Right Front WSS Signal circuit in the Anti-Lock Brakes Module harness connector.

2. Using a 12-volt test light connected to 12-volts, probe the (B6) Right Front WSS Signal circuit.


Yes

Go to Step 8.

No

Repair the (B6) Right Front WSS Signal circuit for an open. Perform ABS VERIFICATION TEST. See ABS VERIFICATION TEST.

8. CHECK (B6) RIGHT FRONT WSS SIGNAL CIRCUIT FOR AN SHORT TO VOLTAGE



steve


Fig. 16: Measuring Voltage Between Right Front WSS Signal Circuit & Ground Courtesy of CHRYSLER LLC

1. Turn the ignition on. 2. Remove all jumper wires. 3. Measure the voltage between the (B6) Right Front WSS Signal circuit and ground.


Yes

Repair the (B6) Right Front WSS Signal circuit for a short to voltage. Perform ABS VERIFICATION TEST. See ABS VERIFICATION TEST.



steve


No

Go to Step 9. 9. CHECK (B6) RIGHT FRONT WSS SIGNAL CIRCUIT AND (B7) RIGHT FRONT WSS 12

VOLT SUPPLY CIRCUIT SHORTED TOGETHER

Fig. 17: Measuring Resistance Between Right Front WSS Signal Circuit & Right Front WSS Supply Circuit Courtesy of CHRYSLER LLC

1. Turn the ignition off. 2. Measure the resistance between the (B6) Right Front WSS Signal circuit and the (B7) Right Front

WSS Supply circuit.

Is the resistance above 5.0 Ohms?

Yes

Go to Step 10.



steve


No

Repair the (B6) Right Front WSS Signal circuit and the (B7) Right Front WSS Supply circuit for a short together.

Perform ABS VERIFICATION TEST. See ABS VERIFICATION TEST. 10. RIGHT FRONT WHEEL SPEED SENSOR

1. Replace the Right Front Wheel Speed Sensor in accordance with the Service Information. 2. Perform ABS VERIFICATION TEST. See ABS VERIFICATION TEST.



Did DTC C1015 RIGHT FRONT WHEEL SPEED SENSOR CIRCUIT reset?

Yes


No

Test Complete.

C101C-RIGHT FRONT WHEEL SPEED SENSOR SIGNAL ERRATIC PERFORMANCE



When Monitored:


Set Condition:

When the Right Front Wheel Speed Sensor (WSS) Signal is intermittently missing while vehicle speed is





steve


above 40 km/h (25 mph) or erratic wheel speed signal during acceleration or sensed wheel speed is different from other wheels.

Diagnostic Test

1. CHECK FOR DTC C101C-RIGHT FRONT WHEEL SPEED SENSOR SIGNAL ERRATIC PERFORMANCE




Does the scan tool display: C101C-RIGHT FRONT WHEEL SPEED SENSOR SIGNAL ERRATIC PERFORMANCE active?

Yes

Go to Step 3.

No

Go to Step 2.

Possible Causes RIGHT FRONT WSS LOOSE - B6, B7 CIRCUITS/CONNECTOR/TERMINAL DAMAGERIGHT FRONT TONE WHEEL DAMAGERIGHT FRONT WHEEL/BEARING DAMAGEIMPROPER RIGHT FRONT TIRE PRESSURE/MISMATCHED TIRESRIGHT FRONT WSSANTI-LOCK BRAKE MODULE


NOTE: If DTC C1015-Right Front Wheel Speed Sensor Circuit is present it must be repaired before continuing.





steve


2. CHECK WHEEL SPEED SENSOR SIGNALS 1. Turn the ignition on. 2. With the scan tool, monitor and graph ALL the WSS speeds and compare graph while an assistant

drives the vehicle.


Is the Right Front WSS speed showing 0 km/h (0 mph) or not matching other wheels or showing erratic behavior?

Yes

Go to Step 3.

No

Perform ABS VERIFICATION TEST. See ABS VERIFICATION TEST. 3. CHECK FOR IMPROPER RIGHT FRONT TIRE PRESSURE/MISMATCHED TIRES

1. Turn the ignition off. 2. Check and adjust the Right Front Tire pressure. 3. Check and adjust all other tire pressures. 4. Inspect for mismatched tires on vehicle.

Is the Right Front Tire improperly inflated or mismatched tires on vehicle?

Yes


No

Go to Step 4. 4. CHECK RIGHT FRONT WSS LOOSENESS, INSPECT B6, B7 CIRCUITS/TERMINALS FOR

DAMAGE

1. Inspect the Anti-Lock Brake Module harness connector, Right Front WSS, and Right Front WSS harness connector





steve


2. Inspect the Right Front WSS for looseness, excessive corrosion and not properly fastened. 3. Inspect the (B6) Right Front WSS Signal and (B7) Right Front WSS Supply circuits between the

Right Front WSS and Anti-Lock Brake Module for damage.

Is the Right Front WSS loose or any of the wiring/connectors/terminals damaged?

Yes


No

Go to Step 5. 5. CHECK RIGHT FRONT WHEEL SPEED SENSOR FOR DAMAGE

1. Remove the Right Front Wheel Speed Sensor 2. Inspect the Right Front Wheel Speed Sensor face for damage.

Is the Right Front Wheel Speed Sensor damaged?

Yes


No

Go to Step 6. 6. CHECK RIGHT FRONT TONE WHEEL/BEARING FOR DAMAGE

1. Inspect the Right Front Tone Wheel/Bearing for damage, missing teeth, cracks, corrosion or looseness.

Is the Right Front Tone Wheel/Bearing damaged?

Yes


No

Go to Step 7.




steve


7. CHECK RIGHT FRONT WHEEL BEARING FOR DAMAGE 1. Inspect the Right Front wheel bearing for excessive runout or clearance.

Is the Right Front Wheel Bearing Damaged?

Yes


No

Go to Step 8. 8. RIGHT FRONT WHEEL SPEED SENSOR

1. Replace the Right Front Wheel Speed Sensor in accordance with the Service Information. 2. Perform ABS VERIFICATION TEST. See ABS VERIFICATION TEST. 3. Road test the vehicle over 40 km/h (25 mph).


Did DTC C101C-RIGHT FRONT WHEEL SPEED SENSOR SIGNAL ERRATIC PERFORMANCE reset?

Yes


No

Test Complete.

C101F-RIGHT FRONT WHEEL SPEED COMPARATIVE PERFORMANCE



NOTE: For procedures or specifications, refer to Front Suspension/Front/HUB AND BEARING - Diagnosis and Testing .




steve


When Monitored:


Set Condition:

When the Right Front Wheel Speed Sensor (WSS) reading is different from the readings received from the other sensors at a vehicle speed above 40 km/h (25 mph). The Anti-Lock Brake Module compares WSS readings from side-to-side on an axle and front-to-rear.

Diagnostic Test

1. CHECK FOR DTC C101F-RIGHT FRONT WHEEL SPEED COMPARATIVE PERFORMANCE




Does the scan tool display: C101F-RIGHT FRONT WHEEL SPEED COMPARATIVE PERFORMANCE active?

Yes

Go to Step 3.

No

Possible Causes RIGHT FRONT WSS LOOSE B6, B7 CIRCUITS/CONNECTOR/TERMINAL DAMAGEIMPROPER RIGHT FRONT TIRE PRESSURE/MISMATCHED TIRESRIGHT FRONT TONE WHEEL/BEARING DAMAGERIGHT FRONT WSSANTI-LOCK BRAKE MODULE






steve




drives the vehicle.


Is the Right Front WSS speed showing 0 km/h (0 mph) or not matching other wheels or showing erratic behavior?

Yes

Go to Step 3.

No



3. CHECK FOR IMPROPER RIGHT FRONT TIRE PRESSURE/MISMATCHED TIRES 1. Turn the ignition off. 2. Check and adjust the Right Front Tire pressure. 3. Check and adjust all other tire pressures. 4. Inspect for mismatched tires on vehicle.

Is the Right Front Tire improperly inflated or mismatched tires on vehicle?

Yes


No

Go to Step 4. 4. CHECK RIGHT FRONT WSS LOOSENESS, INSPECT B6, B7 CIRCUITS/TERMINALS FOR

DAMAGE




steve


1. Inspect the Anti-Lock Brake Module harness connector, Right Front WSS, and Right Front WSS harness connector.

2. Inspect the Right Front WSS for looseness, excessive corrosion and not properly fastened. 3. Inspect the (B6) Right Front WSS Signal and (B7) Right Front WSS Supply circuits between the

Right Front WSS and Anti-Lock Brake Module for damage.

Is the Right Front WSS loose or any of the wiring/connectors/terminals damaged?

Yes


No

Go to Step 5. 5. CHECK RIGHT FRONT WHEEL SPEED SENSOR FOR DAMAGE

1. Remove the Right Front Wheel Speed Sensor 2. Inspect the Right Front Wheel Speed Sensor face for damage.

Is the Right Front Wheel Speed Sensor damaged?

Yes


No

Go to Step 6. 6. CHECK RIGHT FRONT TONE WHEEL/BEARING FOR DAMAGE

1. Inspect the Right Front Tone Wheel/Bearing for damage, missing teeth, cracks, corrosion or looseness.

Is the Right Front Tone Wheel/Bearing damaged?

Yes

Repair as necessary.





steve



No

Go to Step 7. 7. RIGHT FRONT WHEEL SPEED SENSOR

1. Replace the Right Front Wheel Speed Sensor in accordance with the Service Information. 2. Perform ABS VERIFICATION TEST. See ABS VERIFICATION TEST. 3. Road test the vehicle over 40 km/h (25 mph).


Did DTC C101F-RIGHT FRONT WHEEL SPEED COMPARATIVE PERFORMANCE reset?

Yes


No

Test Complete.

C1020-LEFT REAR WHEEL SPEED SENSOR CIRCUIT




steve







steve


When Monitored:


Set Condition:

If the Left Rear Wheel Speed Sensor circuit fails the diagnostic test.

Diagnostic Test

1. CHECK FOR DTC C1020 LEFT REAR WHEEL SPEED SENSOR CIRCUIT


Does the scan tool display: C1020 LEFT REAR WHEEL SPEED SENSOR CIRCUIT?

Yes

Go to Step 2.

No




Possible Causes WIRING HARNESS, TERMINAL, CONNECTOR DAMAGE(B4) LEFT REAR WSS 12 VOLT SUPPLY CIRCUIT SHORTED TO VOLTAGE, GROUND, OR OPEN(B3) LEFT REAR WSS SIGNAL CIRCUIT SHORTED TO VOLTAGE, GROUND, OR OPEN(B3) LEFT REAR WSS SIGNAL CIRCUIT SHORTED TO THE (B4) LEFT REAR WSS 12 VOLT SUPPLY CIRCUITLEFT REAR WSSANTI-LOCK BRAKES MODULE




steve


1. Turn the ignition off. 2. Inspect the Anti-Lock Brake Module harness connector, Left Rear WSS, and Left Rear WSS

harness connector.

Is the Left Rear WSS or any of the connectors/terminals damaged?

Yes


No

Go to Step 3. 3. CHECK (B4) LEFT REAR WSS 12 VOLT SUPPLY CIRCUIT VOLTAGE




steve


Fig. 19: Measuring Voltage Of Left Rear WSS 12 Volt Supply Circuit Courtesy of CHRYSLER LLC

1. Disconnect the Left Rear WSS harness connector. 2. Turn the ignition on. 3. Measure the voltage of the (B4) Left Rear WSS 12 Volt Supply circuit.


Yes

Go to Step 6.

No



steve


Go to Step 4. 4. CHECK (B4) LEFT REAR WSS 12 VOLT SUPPLY CIRCUIT FOR A SHORT TO GROUND

Fig. 20: Checking Left Rear WSS 12 Volt Supply Circuit For A Short To Ground Courtesy of CHRYSLER LLC

1. Turn the ignition off. 2. Disconnect the Left Rear WSS harness connector. 3. Disconnect the Anti-Lock Brake Module harness connector. 4. Using a 12-volt test light connected to 12 volts, probe the (B4) Left Rear WSS Supply circuit.


Yes



steve


Repair the (B4) Left Rear WSS Supply circuit for a short to ground. Perform ABS VERIFICATION TEST. See ABS VERIFICATION TEST.

No

Go to Step 5. 5. CHECK (B4) LEFT REAR WSS 12 VOLT SUPPLY CIRCUIT FOR AN OPEN

Fig. 21: Checking Left Rear WSS 12 Volt Supply Circuit For A Short To Ground Courtesy of CHRYSLER LLC

1. Connect a jumper wire between ground and the (B4) Left Rear WSS Supply circuit in the Anti-Lock Brakes Module harness connector.

2. Using a 12-volt test light connected to 12 volts, probe the (B4) Left Rear WSS Supply circuit.



steve



Yes


No

Repair the (B4) Left Rear WSS Supply circuit for an open. Perform ABS VERIFICATION TEST. See ABS VERIFICATION TEST.

6. CHECK (B3) LEFT REAR WSS SIGNAL CIRCUIT FOR A SHORT TO GROUND

Fig. 22: Checking Left Rear WSS Signal Circuit For A Short To Ground Courtesy of CHRYSLER LLC

1. Turn the ignition off. 2. If not done previously, disconnect the Anti-Lock Brake Module harness connector. 3. Using a 12-volt test light connected to 12 volts, probe the (B3) Left Rear WSS Signal circuit.



steve



Yes

Repair the (B3) Left Rear WSS Signal circuit for a short to ground. Perform ABS VERIFICATION TEST. See ABS VERIFICATION TEST.

No

Go to Step 7. 7. CHECK (B3) LEFT REAR WSS SIGNAL CIRCUIT FOR AN OPEN

Fig. 23: Checking Left Rear WSS Signal Circuit For A Short To Ground Courtesy of CHRYSLER LLC

1. Connect a jumper wire between ground and the (B3) Left Rear WSS Signal circuit in the Anti-Lock Brakes Module harness connector.

2. Using a 12-volt test light connected to 12 volts, probe the (B3) Left Rear WSS Signal circuit.



steve



Yes

Go to Step 8.

No

Repair the (B3) Left Rear WSS Signal circuit for an open. Perform ABS VERIFICATION TEST. See ABS VERIFICATION TEST.

8. CHECK (B3) LEFT REAR WSS SIGNAL CIRCUIT SHORT TO VOLTAGE

Fig. 24: Measuring Voltage Between Left Rear WSS Signal Circuit & Ground Courtesy of CHRYSLER LLC

1. Turn the ignition on. 2. Remove all jumper wires. 3. Measure the voltage between the (B3) Left Rear WSS Signal circuit and ground.



steve



Yes

Repair the (B3) Left Rear WSS Signal circuit for a short to voltage. Perform ABS VERIFICATION TEST. See ABS VERIFICATION TEST.

No

Go to Step 9. 9. CHECK (B3) LEFT REAR WSS SIGNAL CIRCUIT AND (B4) LEFT REAR WSS 12 VOLT

SUPPLY CIRCUIT SHORTED TOGETHER

Fig. 25: Measuring Resistance Between Left Rear WSS Signal Circuit & Left Rear WSS Supply Circuit



steve


Courtesy of CHRYSLER LLC

1. Turn the ignition off. 2. Measure the resistance between the (B3) Left Rear WSS Signal circuit and the (B4) Left Rear WSS

Supply circuit.


Yes

Go to Step 10.

No

Repair the (B3) Left Rear WSS Signal circuit and the (B4) Left Rear WSS Supply circuit for a short together.

Perform ABS VERIFICATION TEST. See ABS VERIFICATION TEST. 10. LEFT REAR WHEEL SPEED SENSOR

1. Replace the Left Rear Wheel Speed Sensor in accordance with the Service Information. 2. Perform ABS VERIFICATION TEST. See ABS VERIFICATION TEST.



Did DTC C1020-LEFT REAR WHEEL SPEED SENSOR CIRCUIT reset?

Yes


No

Test Complete.

C1027-LEFT REAR WHEEL SPEED SENSOR SIGNAL ERRATIC PERFORMANCE





steve




When Monitored:


Set Condition:

When the Left Rear Wheel Speed Sensor (WSS) Signal is intermittently missing while vehicle speed is above 40 km/h (25 mph) or erratic wheel speed signal during acceleration or sensed wheel speed is different from other wheels.

Diagnostic Test

1. CHECK FOR DTC C1027-LEFT REAR WHEEL SPEED SENSOR SIGNAL ERRATIC PERFORMANCE




Possible Causes LEFT REAR WSS LOOSE - B3, B4 CIRCUITS/CONNECTOR/TERMINAL DAMAGELEFT REAR TONE WHEEL DAMAGELEFT REAR WHEEL BEARING DAMAGEAXLE SHAFT FASTENER HARDWAREIMPROPER LEFT REAR TIRE PRESSURE/MISMATCHED TIRESLEFT REAR WSSANTI-LOCK BRAKE MODULE






steve


Does the scan tool display: C1027-LEFT REAR WHEEL SPEED SENSOR SIGNAL ERRATIC PERFORMANCE active?

Yes

Go to Step 3.

No



drives the vehicle.


Is the Left Rear WSS speed showing 0 km/h (0 mph) or not matching other wheels or showing erratic behavior?

Yes

Go to Step 3.

No


3. CHECK FOR IMPROPER LEFT REAR TIRE PRESSURE/MISMATCHED TIRES 1. Turn the ignition off. 2. Check and adjust the Left Rear Tire pressure. 3. Check and adjust all other tire pressures. 4. Inspect for mismatched tires on vehicle.

Is the Left Rear Tire improperly inflated or mismatched tires on vehicle?

Yes





steve


No

Go to Step 4. 4. CHECK AXLE SHAFT FASTENER HARDWARE FOR LOOSENESS

1. Inspect the axle shaft fastener for looseness, and not properly fastened. Tighten fastener to proper specification as required.

Was the Axle Shaft fastener loose?

Yes


No

Go to Step 5. 5. CHECK LEFT REAR WSS LOOSENESS, INSPECT B3, B4 CIRCUITS/TERMINALS FOR

DAMAGE

1. Inspect the Anti-Lock Brake Module harness connector, Left Rear WSS, and Left Rear WSS harness connector

2. Inspect the Left Rear WSS for looseness, excessive corrosion and not properly fastened. 3. Inspect the (B3) Left Rear WSS Signal and (B4) Left Rear WSS Supply circuits between the Left

Rear WSS and Anti-Lock Brake Module for damage.

Is the Left Rear WSS loose or any of the wiring/connectors/terminals damaged?

Yes


No

Go to Step 6. 6. CHECK LEFT REAR WHEEL SPEED SENSOR FOR DAMAGE

1. Remove the Left Rear Wheel Speed Sensor 2. Inspect the Left Rear Wheel Speed Sensor face for damage.

Is the Left Rear Wheel Speed Sensor damaged?

Yes




steve



No

Go to Step 7. 7. CHECK LEFT REAR TONE WHEEL FOR DAMAGE

1. Inspect the Left Rear Tone Wheel for damage, missing teeth, cracks, corrosion or looseness.

Is the Left Rear Tone Wheel damaged?

Yes


No

Go to Step 8. 8. CHECK LEFT REAR WHEEL BEARING FOR DAMAGE

1. Inspect the Left Rear wheel bearing for excessive runout or clearance.

Is the Left Rear Wheel Bearing Damaged?

Yes


No

Go to Step 9. 9. LEFT REAR WHEEL SPEED SENSOR

1. Replace the Left Rear Wheel Speed Sensor in accordance with the Service Information. 2. Perform ABS VERIFICATION TEST. See ABS VERIFICATION TEST. 3. Road test the vehicle over 40 km/h (25 mph).


NOTE: For procedures or specifications, refer to Front Suspension/Front/HUB AND BEARING - Diagnosis and Testing .



steve



Did DTC C1027-LEFT REAR WHEEL SPEED SENSOR SIGNAL ERRATIC PERFORMANCE reset?

Yes


No

Test Complete.

C102A-LEFT REAR WHEEL SPEED COMPARATIVE PERFORMANCE



When Monitored:


Set Condition:

When the Left Rear Wheel Speed Sensor (WSS) reading is different from the readings received from the other sensors at a vehicle speed above 40 km/h (25 mph). The Anti-Lock Brake Module compares WSS readings from side-to-side on an axle and front-to-rear.

Diagnostic Test

1. CHECK FOR DTC C102A-LEFT REAR WHEEL SPEED COMPARATIVE PERFORMANCE


Possible Causes LEFT REAR WSS LOOSE - B3, B4 CIRCUITS/CONNECTOR/TERMINAL DAMAGEIMPROPER LEFT REAR TIRE PRESSURE/MISMATCHED TIRESLEFT REAR TONE WHEEL DAMAGEAXLE SHAFT FASTENER HARDWARELEFT REAR WSSANTI-LOCK BRAKE MODULE



steve





Does the scan tool display: C102A-LEFT REAR WHEEL SPEED COMPARATIVE PERFORMANCE active?

Yes

Go to Step 3.

No



drives the vehicle.


Is the Left Rear WSS speed showing 0 km/h (0 mph) or not matching other wheels or showing erratic behavior?

Yes

Go to Step 3.

No







steve




3. CHECK FOR IMPROPER LEFT REAR TIRE PRESSURE/MISMATCHED TIRES 1. Turn the ignition off. 2. Check and adjust the Left Rear Tire pressure. 3. Check and adjust all other tire pressures. 4. Inspect for mismatched tires on vehicle.

Is the Left Rear Tire improperly inflated or mismatched tires on vehicle?

Yes


No

Go to Step 4. 4. CHECK AXLE SHAFT FASTENER HARDWARE FOR LOOSENESS

1. Inspect the axle shaft fastener for looseness, and not properly fastened. Tighten fastener to proper specification as required.

Was the Axle Shaft fastener loose?

Yes


No

Go to Step 5. 5. CHECK LEFT REAR WSS LOOSENESS, INSPECT B3, B4 CIRCUITS/TERMINALS FOR

DAMAGE

1. Inspect the Anti-Lock Brake Module harness connector, Left Rear WSS, and Left Rear WSS harness connector.

2. Inspect the Left Rear WSS for looseness, excessive corrosion and not properly fastened. 3. Inspect the (B3) Left Rear WSS Signal and (B4) Left Rear WSS Supply circuits between the Left




steve


Rear WSS and Anti-Lock Brake Module for damage.

Is the Left Rear WSS loose or any of the wiring/connectors/terminals damaged?

Yes


No

Go to Step 6. 6. CHECK LEFT REAR WHEEL SPEED SENSOR FOR DAMAGE

1. Remove the Left Rear Wheel Speed Sensor 2. Inspect the Left Rear Wheel Speed Sensor face for damage.

Is the Left Rear Wheel Speed Sensor damaged?

Yes


No

Go to Step 7. 7. CHECK LEFT REAR TONE WHEEL FOR DAMAGE

1. Inspect the Left Rear Tone Wheel for damage, missing teeth, cracks, corrosion or looseness.

Is the Left Rear Tone Wheel damaged?

Yes


No

Go to Step 8. 8. LEFT REAR WHEEL SPEED SENSOR

1. Replace the Left Rear Wheel Speed Sensor in accordance with the Service Information.




steve


2. Perform ABS VERIFICATION TEST. See ABS VERIFICATION TEST. 3. Road test the vehicle over 40 km/h (25 mph).


Did DTC C102A-LEFT REAR WHEEL SPEED COMPARATIVE PERFORMANCE reset?

Yes


No

Test Complete.

C102B-RIGHT REAR WHEEL SPEED SENSOR CIRCUIT




steve







steve


When Monitored:


Set Condition:

If the Right Rear Wheel Speed Sensor circuit fails the diagnostic test.

Diagnostic Test

1. CHECK FOR DTC C102B RIGHT REAR WHEEL SPEED SENSOR CIRCUIT


Does the scan tool display: C102B RIGHT REAR WHEEL SPEED SENSOR CIRCUIT?

Yes

Go to Step 2.

No




Possible Causes WIRING HARNESS, TERMINAL, CONNECTOR DAMAGE(B2) RIGHT REAR WSS 12 VOLT SUPPLY CIRCUIT SHORTED TO VOLTAGE, GROUND, OR OPEN(B1) RIGHT REAR WSS SIGNAL CIRCUIT SHORTED TO VOLTAGE, GROUND, OR OPEN(B1) RIGHT REAR WSS SIGNAL CIRCUIT SHORTED TO THE (B2) RIGHT REAR WSS 12 VOLT SUPPLY CIRCUITRIGHT REAR WSSANTI-LOCK BRAKES MODULE




steve


1. Turn the ignition off. 2. Inspect the Anti-Lock Brake Module harness connector, Right Rear WSS, and Right Rear WSS

harness connector.

Is the Right Rear WSS or any of the connectors/terminals damaged?

Yes


No

Go to Step 3. 3. CHECK (B2) RIGHT REAR WSS 12 VOLT SUPPLY CIRCUIT VOLTAGE




steve


Fig. 27: Measuring Voltage Of Right Rear WSS 12 Volt Supply Circuit Courtesy of CHRYSLER LLC

1. Disconnect the Right Rear WSS harness connector. 2. Turn the ignition on. 3. Measure the voltage of the (B2) Right Rear WSS 12 Volt Supply circuit.


Yes

Go to Step 6.

No

Go to Step 4. 4. CHECK (B2) RIGHT REAR WSS 12 VOLT SUPPLY CIRCUIT FOR A SHORT TO GROUND



steve


Fig. 28: Checking Right Rear WSS 12 Volt Supply Circuit For A Short To Ground Courtesy of CHRYSLER LLC

1. Turn the ignition off. 2. Disconnect the Right Rear WSS harness connector. 3. Disconnect the Anti-Lock Brake Module harness connector. 4. Using a 12-volt test light connected to 12 volts, probe the (B2) Right Rear WSS Supply circuit.


Yes

Repair the (B2) Right Rear WSS Supply circuit for a short to ground. Perform ABS VERIFICATION TEST. See ABS VERIFICATION TEST.

No

Go to Step 5. 5. CHECK (B2) RIGHT REAR WSS 12 VOLT SUPPLY CIRCUIT FOR AN OPEN



steve



1. Connect a jumper wire between ground and the (B2) Right Rear WSS Supply circuit in the Anti-Lock Brakes Module harness connector.

2. Using a 12-volt test light connected to 12 volts, probe the (B2) Right Rear WSS Supply circuit.


Yes


No

Repair the (B2) Right Rear WSS Supply circuit for an open. Perform ABS VERIFICATION TEST. See ABS VERIFICATION TEST.



steve


6. CHECK (B1) RIGHT REAR WSS SIGNAL CIRCUIT FOR A SHORT TO GROUND

Fig. 30: Checking Right Rear WSS Signal Circuit For A Short To Ground Courtesy of CHRYSLER LLC

1. Turn the ignition off. 2. If not done previously, disconnect the Anti-Lock Brake Module harness connector. 3. Using a 12-volt test light connected to 12 volts, probe the (B1) Right Rear WSS Signal circuit.


Yes

Repair the (B1) Right Rear WSS Signal circuit for a short to ground.



steve



No

Go to Step 7. 7. CHECK (B1) RIGHT REAR WSS SIGNAL CIRCUIT FOR AN OPEN

Fig. 31: Checking Right Rear WSS Signal Circuit For A Short To Ground Courtesy of CHRYSLER LLC

1. Connect a jumper wire between ground and the (B1) Right Rear WSS Signal circuit in the Anti-Lock Brakes Module harness connector.

2. Using a 12-volt test light connected to 12 volts, probe the (B1) Right Rear WSS Signal circuit.



steve



Yes

Go to Step 8.

No

Repair the (B1) Right Rear WSS Signal circuit for an open. Perform ABS VERIFICATION TEST. See ABS VERIFICATION TEST.

8. CHECK (B1) RIGHT REAR WSS SIGNAL CIRCUIT SHORT TO VOLTAGE

Fig. 32: Measuring Voltage Between Right Rear WSS Signal Circuit & Ground Courtesy of CHRYSLER LLC



steve


1. Turn the ignition on. 2. Remove all jumper wires. 3. Measure the voltage between the (B1) Right Rear WSS Signal circuit and ground.


Yes

Repair the (B1) Right Rear WSS Signal circuit for a short to voltage. Perform ABS VERIFICATION TEST. See ABS VERIFICATION TEST.

No

Go to Step 9. 9. CHECK (B1) RIGHT REAR WSS SIGNAL CIRCUIT FOR A SHORT TO (B2) RIGHT REAR

WSS 12 VOLT SUPPLY CIRCUIT



steve


Fig. 33: Measuring Resistance Between Right Rear WSS Signal Circuit & Right Rear WSS Supply Circuit Courtesy of CHRYSLER LLC

1. Turn the ignition off. 2. Measure the resistance between the (B1) Right Rear WSS Signal circuit and the (B2) Right Rear

WSS Supply circuit.


Yes

Go to Step 10.

No



steve


Repair the (B1) Right Rear WSS Signal circuit and the (B2) Right Rear WSS Supply circuit for a short together.

Perform ABS VERIFICATION TEST. See ABS VERIFICATION TEST. 10. RIGHT REAR WHEEL SPEED SENSOR

1. Replace the Right Rear Wheel Speed Sensor in accordance with the Service Information. 2. Perform ABS VERIFICATION TEST. See ABS VERIFICATION TEST.



Did DTC C102B-RIGHT REAR WHEEL SPEED SENSOR CIRCUIT reset?

Yes


No

Test Complete.

C102C-RIGHT REAR WHEEL SPEED SENSOR CIRCUIT PERFORMANCE





steve







steve


When Monitored:


Set Condition:

If the Right Rear Wheel Speed Sensor circuit fails the diagnostic test.

Diagnostic Test

1. CHECK FOR DTC C102C-RIGHT REAR WHEEL SPEED SENSOR CIRCUIT PERFORMANCE


Does the scan tool display: C102C-RIGHT REAR WHEEL SPEED SENSOR CIRCUIT PERFORMANCE?

Yes

Go to Step 2.

No



Possible Causes WIRING HARNESS, TERMINAL, CONNECTOR DAMAGE(B2) RIGHT REAR WSS 12 VOLT SUPPLY CIRCUIT SHORTED TO VOLTAGE, GROUND, OR OPEN(B1) RIGHT REAR WSS SIGNAL CIRCUIT SHORTED TO VOLTAGE, GROUND, OR OPEN(B1) RIGHT REAR WSS SIGNAL CIRCUIT SHORTED TO (B2) RIGHT REAR WSS 12 VOLT SUPPLY CIRCUITRIGHT REAR WSSANTI-LOCK BRAKE MODULE




steve



1. Turn the ignition off. 2. Inspect the Anti-Lock Brake Module harness connector, Right Rear WSS, and Right Rear WSS

harness connector.

Is the Right Rear WSS or any of the connectors/terminals damaged?

Yes


No

Go to Step 3. 3. CHECK (B2) RIGHT REAR WSS 12 VOLT SUPPLY CIRCUIT VOLTAGE




steve


Fig. 35: Measuring Voltage Of Right Rear WSS 12 Volt Supply Circuit Courtesy of CHRYSLER LLC

1. Disconnect the Right Rear WSS harness connector. 2. Turn the ignition on. 3. Measure the voltage of the (B2) Right Rear WSS 12 Volt Supply circuit.


Yes

Go to Step 6.

No

Go to Step 4. 4. CHECK (B2) RIGHT REAR WSS 12 VOLT SUPPLY CIRCUIT FOR A SHORT TO GROUND



steve



1. Turn the ignition off. 2. Disconnect the Right Rear WSS harness connector. 3. Disconnect the Anti-Lock Brake Module harness connector. 4. Using a 12-volt test light connected to 12 volts, probe the (B2) Right Rear WSS Supply circuit.


Yes

Repair the (B2) Right Rear WSS Supply circuit for a short to ground. Perform ABS VERIFICATION TEST. See ABS VERIFICATION TEST.

No

Go to Step 5.



steve


5. CHECK (B2) RIGHT REAR WSS 12 VOLT SUPPLY CIRCUIT FOR AN OPEN


1. Connect a jumper wire between ground and the (B2) Right Rear WSS Supply circuit in the Anti-Lock Brake Module harness connector.

2. Using a 12-volt test light connected to 12 volts, probe the (B2) Right Rear WSS Supply circuit.


Yes

Replace the Anti-Lock Brake Module in accordance with the Service Information. Perform ABS VERIFICATION TEST. See ABS VERIFICATION TEST.

No



steve


Repair the (B2) Right Rear WSS Supply circuit for an op

112607709 abs electrical

Documents

tone wheel performancec1043

town country steve

ecmpcmu0101 lost communication

tcmu0125 lost communication

chrysler town country

stuckc107d brake pedal

ecmpcmu0402 implausible

tcmu0429 implausible