P1380

Steps 1 - 4:

DTC P1380 ABS Rough Road ABS System Fault

Circuit Description
The powertrain control module (PCM) monitors ABS fault signal. When PCM receives fault signal, PCM will set
DTC P1380.

Conditions for Setting the DTC
- Vehicle speed is more than 5 mph.
- Load is less than 99%.
- Engine revolution is less than 6250 rpm.
- PCM receives ABS fault signals from ABS unit.
- Ignition on.
- Misfire DTCs exist.
- 100 test failures within 120 test samples.

Action Taken When the DTC Sets
- The PCM will store DTC 1380 only, no MIL turn on.

Conditions for Clearing the MIL/DTC
- A history DTC P1380 will clear after 40 consecutive warm-up cycles have occurred without a fault. DTC 1380 can be cleared by using Tech-II or disconnecting the PCM battery feed.

Diagnostic Aids
Check for the following conditions:
- PCM and ABS communication line short circuit to other line may cause faulty signal. Inspect communication line.
- Follow ABS ECU diagnosis procedure, refer to ABS procedure page.