|
|
*STORED LOST COMMUNICATION DTCS (CONTINUED) 3. VERIFY INTERMITTENT LOST COMMUNICATION DTC-WIRING CONCERNS Turn the ignition on. With the scan tool, select Network Diagnostics. Is there more than one ECU with stored DTCs “Logged Against” the module and one or more lost com- Yes >> Verify if the vehicle was recently in for this type of service. Otherwise, visually inspect the related wiring harness for chafed, pierced, pinched, and partially broken wires and the wiring harness connectors for No >> Go To 4 4. VERIFY INTERMITTENT LOST COMMUNICATION DTC-OFFENDING MODULE Turn the ignition on. With the scan tool, select Network Diagnostics. Is there more than one ECU with stored DTCs “Logged Against” the module and NO lost communication Yes >> Check for TSB related to this offending module. No >> Go To 5 5. VERIFY INTERMITTENT LOST COMMUNICATION DTC-REPORTING MODULE Turn the ignition on. With the scan tool, select Network Diagnostics. Is there ONLY ONE ECU with stored DTCs “Logged Against” the module? Yes >> Check for TSB related to the module that set this DTC. No >> Verify if the vehicle was recently in for this type of service. Otherwise, visually inspect the related wiring harness for chafed, pierced, pinched, and partially broken wires and the wiring harness connectors for HB ELECTRONIC CONTROL MODULES - ELECTRICAL DIAGNOSTICS 8E - 101 |