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6E2–238 6VD1 3.2L ENGINE DRIVEABILITY AND EMISSIONS Diagnostic Trouble Code (DTC) P1380 ABS Rough Road ABS System Fault Circuit Description The powertrain control module (PCM) monitors ABS fault Conditions for Setting the DTC D Vehicle speed is more than 5 mph. D Load is less than 99%. D Engine revolution is less than 6250 rpm. D PCM receives ABS fault signals from ABS unit. D Ignition on. D Misfire DTCs exist. D 100 test failures within 120 test samples. Action Taken When the DTC Sets D The PCM will store DTC 1380 only, no MIL turn on. Conditions for Clearing the MIL/DTC D A history DTC P1380 will clear after 40 consecutive D DTC 1380 can be cleared by using Tech-II or Diagnostic Aids Check for the following conditions: D PCM and ABS communication line short circuit to other D Follow ABS ECU diagnosis procedure, refer to ABS DTC P1380 – ABS Rough Road ABS System Fault
Step Action Value(s) Yes No 1 Was the “On-Board Diagnostic (OBD) System Check” — Go to Step 2 Go to OBD System Check 2 1. Ignition “ON,” engine “OFF”, review and record Tech 2 Failure Records Data. 2. Operate the vehicle within Failure Records conditions as noted. 3. Using a Tech 2, monitor “DTC” info for DTC P1380. Note the result. Does the Tech 2 indicates DTC P1380 DTCs failed this — Refer to ABS diagnosis After inspecting ABS, repeat Step 2 If problem still exists, go to Step 3 Clear DTC by Tech 2 3 Check short circuit among communication line of Does short circuit exist? — Repair wiring Verify repair Go to Step 4 4 Replace the PCM. Is the action complete? — Verify repair — |