P1201

P1201-FRONT TRACTION CONTROL INLET VALVE CONTROL CIRCUIT LOW






For the ABS circuit diagram refer to brakes, schematics and diagrams..
^ When Monitored: Continuous
^ Set Condition: The electrical feedback of the power stage does not correspond with the activation of the respective valve.

Possible Causes
HIGH RESISTANCE IN B+ CIRCUITS
HIGH RESISTANCE IN GROUND CIRCUITS
ABM INTERNAL

Diagnostic Test

1. HIGH RESISTANCE IN B+ CIRCUITS





Turn key off.
Disconnect the ABM harness connector.

Note: Check connector - Clean/repair as necessary.

Turn key on, engine off. With a test light connected to ground check (A107) Fused B+, (A111) Fused B+ and (F500) Fused ignition switch output.
Is the test light bright like when connected to the battery?
Yes >> Go to 2
No >> Repair the high resistance in the circuits. Verification Tests

2. HIGH RESISTANCE IN GROUND CIRCUITS





With a test light Connected to B+ check (Z923) Ground and (Z107) Ground.
Is the test light bright like when connected to the battery?
Yes >> Replace the ABM per service information. Verification Tests
No >> Repair the high resistance in the circuits. Verification Tests