Diagnostic Aids
WARNING: This page is about a different car, the 2004 Pontiac Grand Prix. However, it is still accessible from the selected car via links, so may be relevant.
- If DTC C0278 sets then recalibrate the brake position sensor.
- Perform a visual inspection for a loose or poor connection at all related components. Refer to Testing for Intermittent Conditions and Poor Connections in Wiring Systems.
DTC C0278
| Step | Action | Yes | No |
|---|---|---|---|
| Schematic Reference: Exterior Lights Schematics Connector End View Reference: Master Electrical Component List in Wiring Systems |
|||
| 1 | Did you perform the Lighting System Diagnostic System Check? | Go to Step 2 | Go to Diagnostic System Check - Lighting Systems or |
| 2 |
|
Go to Step 3 | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems |
| 3 | Recalibrate the brake position sensor. Refer to Brake Pedal Position Sensor Calibration Description and Operation . Did you complete the repair? |
Go to Step 4 | - |
| 4 |
|
Go to Step 5 | Go to Step 6 |
| 5 |
IMPORTANT:
After replace the brake position sensor, perform the calibration procedure. Refer to Brake Pedal Position Sensor Calibration Description and Operation . Replace the brake position sensor. Refer to Brake Pedal Position Sensor Replacement .Did you complete the replacement? |
Go to Step 6 | - |
| 6 |
|
Go to Step 2 | System OK |