Test Description
The numbers below refer to the step numbers on the diagnostic table.
- 2: Symptoms in the stop lamp circuit can cause the DTC to set.
- 3: This step checks for a BPP DTC. BPP failure can cause the DTC to set.
- 4: This step Checks to see if the DTC will reset as current.
DTC C0163-C0165
| Step | Action | Yes | No |
|---|---|---|---|
| Schematic Reference: ABS Schematics Connector End View Reference: ABS Connector End Views and Computer/Integrating Systems Connector End Views in Computer/Integrating Systems |
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| 1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | Go to Diagnostic System Check - Vehicle in Vehicle DTC Information |
| 2 | Are the stop lamps always ON or one or more inoperative? | Go to Symptoms - Lighting Systems in Lighting Systems | Go to Step 3 |
| 3 | Use the scan tool to display DTCs for the BCM. Does the scan tool display DTC C0277 or C0278? |
Go to Diagnostic Trouble Code (DTC) List - Vehicle in Vehicle DTC Information | Go to Step 4 |
| 4 | Confirm that the brake pedal position (BPP) is adjusted to the correct position and perform the BPP calibration procedure. Refer to Brake Pedal Position Sensor Calibration
in Lighting Systems. Operate the vehicle within the Conditions for Running the DTC as specified in the supporting text. Does the DTC reset? |
Go to Step 5 | Go to Step 6 |
| 5 | Repair open or short in the center high mounted stop lamp (CHMSL) resistor. Did you find and correct the condition? |
Go to Step 6 | Go to Step 2 |
| 6 |
|
Go to Step 2 | System OK |