div class=ts-pagebuttonPage 1button div class=ts-image amp-img class=ts-thumb alt=Page 1: Flash Code 56 indicates that the J 1587 diagnostic data link is no longer allowing the ECM see Figure 56-1 to transmit data This diagnostic condition is typically: 2 Either src=https:reader034vdocumentinreader034viewer20220421215e9b302fea0b9847d07cf65ehtml5thumbnails1jpg width=142 height=106 layout=responsive amp-img divdivdiv class=ts-pagebuttonPage 2button div class=ts-image amp-img class=ts-thumb alt=Page 2: Flash Code 56 indicates that the J 1587 diagnostic data link is no longer allowing the ECM see Figure 56-1 to transmit data This diagnostic condition is typically: 2 Either src=https:reader034vdocumentinreader034viewer20220421215e9b302fea0b9847d07cf65ehtml5thumbnails2jpg width=142 height=106 layout=responsive amp-img divdivdiv class=ts-pagebuttonPage 3button div class=ts-image amp-img class=ts-thumb alt=Page 3: Flash Code 56 indicates that the J 1587 diagnostic data link is no longer allowing the ECM see Figure 56-1 to transmit data This diagnostic condition is typically: 2 Either src=https:reader034vdocumentinreader034viewer20220421215e9b302fea0b9847d07cf65ehtml5thumbnails3jpg width=142 height=106 layout=responsive amp-img divdivdiv class=ts-pagebuttonPage 4button div class=ts-image amp-img class=ts-thumb alt=Page 4: Flash Code 56 indicates that the J 1587 diagnostic data link is no longer allowing the ECM see Figure 56-1 to transmit data This diagnostic condition is typically: 2 Either src=https:reader034vdocumentinreader034viewer20220421215e9b302fea0b9847d07cf65ehtml5thumbnails4jpg width=142 height=106 layout=responsive amp-img divdiv