Anti-Lock Braking System Control Module: Removal
- Turn ignition "OFF".
- Disconnect ECU harness connector from ECU assembly.CAUTION: Do not apply a 12V power source to any terminal of the ECU connector when disconnected.
- Mark the brake pipes going into and out of the HCU with tags so reinstallation of the brake lines will be correct.
CAUTION: Before removing the brake pipes from HCU, the HCU must be thoroughly cleaned to prevent dirt particles from falling into the ports of HCU or entering the brake pipes.
- Remove the brake pipes from the HCU.
- Loosen the mounting pin and grommet from HECU bracket and then remove HECU from HECU bracket.
- Remove bolts attaching the ECU to the HCU.
- Lift the ECU assembly straight from the HCU.
- Clean the top of the HCU with a clean, dry cloth.