Diagnostic Aids
NOTE:
Repair any brake system related DTCs before performing this diagnostic.
In order to avoid a misdiagnosis, perform the following:
- If a BCM has been replaced, the brake pedal position (BPP) sensor must be calibrated. Refer to Brake Pedal Position Sensor Calibration .
- Inspect for proper operation of the stop lamps. Refer to Exterior Lighting Systems Description and Operation .
- For an intermittent condition, refer to Testing for Intermittent Conditions and Poor Connections .