DTC U0129: Lost Communication with Brake System Control Module: Procedure
- CLEAR DTC AND PERFORM ROAD TEST
- Clear the DTCs. Refer to DTC CHECK / CLEAR
.
HINT:
Write down the currently output DTCs before clearing them.
- Start the engine, drive at a low speed and perform the inspection.
NEXT: Go to next step
- Clear the DTCs. Refer to DTC CHECK / CLEAR
.
- CHECK DTC OUTPUT
- Connect the Techstream to the DLC3.
- Turn the ignition switch to ON.
- Turn the Techstream on.
- Enter the following menus: Powertrain / Engine and ECT / DTC / Current or Pending.
- Read the DTCs using the Techstream.RESULT
Result Proceed to U0129 is not output A U0129 is output B
B → See step 4
A → See step 3
- CHECK FOR INTERMITTENT PROBLEMS. Refer to ELECTRONIC CIRCUIT INSPECTION PROCEDURE
- GO TO CAN COMMUNICATION SYSTEM. Refer to HOW TO PROCEED WITH TROUBLESHOOTING