Electronic Brake Control Module: Service and Repair

On Wrangler models, the ECU is attached to the dash panel inside the passenger compartment, just above the heater/air conditioning plenum housing inline with the glove box. The ECU is attached to the dash panel by bolts and nuts that are accessible from the engine compartment, just right of the battery. On models with air conditioning, it will be necessary to remove the air conditioning fascia panel and ducts for access to the ECU and harness connector.

On Cherokee models, proceed as follows:
1. Turn ignition switch to the Off position.
2. Remove screws attaching ECU to bracket.
3. Disconnect ECU wiring harness.
4. Remove ECU from vehicle.
5. Reverse procedure to install, torquing ECU to bracket bolts to 75-115 inch lbs and ECU bracket to body bolts to 85-125 inch lbs.