Pinpoint Test E : C0040:64
- E1 CHECK THE STOPLAMPS FOR CORRECT OPERATION
- Inspect the brake pedal position switch and make sure it is installed correctly. Check the stoplamps for correct operation by pressing and releasing the brake pedal and observing the stoplamps.
Do the stoplamps operate correctly?
Yes GO to E2. No REFER to Exterior Lighting , Symptom Chart: Stoplamps. - E2 CHECK THE ABS MODULE DTCs
- Ignition ON.
- Using a diagnostic scan tool, carry out the ABS module self-test.
Are any communication (U-code) DTCs present?
Yes REFER to Anti-Lock Brake System (ABS) and Stability Control . No GO to E3. - E3 CHECK THE PCM FOR DTCs
- Using a diagnostic scan tool, carry out the PCM KOEO self-test.
Are any DTCs present in the PCM ?
Yes REFER to Electronic Engine Controls . No GO to E4. - E4 CHECK FOR CORRECT ABS MODULE OPERATION
- Ignition OFF.
- Disconnect and inspect ABS module C135 .
- Repair:
- corrosion (install new connector or terminal - clean module pins)
- damaged or bent pins - install new terminals or pins
- pushed-out pins - install new pins as necessary
- Connect ABS module C135 . Make sure it seats and latches correctly.
- Operate the system and determine if the concern is still present.
Is the concern still present?
Yes CHECK OASIS for any applicable TSBs. If a TSB exists for this concern, DISCONTINUE this test and FOLLOW the TSB instructions. If no TSBs address this concern and the vehicle is not equipped with adaptive cruise control, INSTALL a new ABS module. REFER to Anti-Lock Brake System (ABS) Module . If no TSBs address this concern and the vehicle is equipped with adaptive cruise control, INSTALL a new ABS module and HCU. REFER to Hydraulic Control Unit (HCU) . No The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.