This code indicates the PCM (Powertrain Control Module) isn't receiving the correct signal from the brake switch. This can cause a variety of issues, including:
* Cruise control not disengaging: The brake switch is crucial for disabling cruise control when the brakes are applied.
* Automatic transmission problems: The transmission may shift erratically or refuse to shift properly.
* Brake lights not working: Although not always the case, this is a possibility.
* Other electrical malfunctions: The malfunction could affect other systems relying on the brake switch signal.
Troubleshooting:
* Check the brake light switch: This is the most likely culprit. It's usually located near the brake pedal. Inspect it for damage, corrosion, or loose connections. You may need to replace it.
* Inspect wiring: Check the wiring harness leading from the brake switch to the PCM for any breaks, shorts, or corrosion.
* Check the brake pedal: Ensure the brake pedal is operating correctly and not binding.
* Check the PCM: Although less likely, a problem with the PCM itself could be the issue. This is a more complex diagnosis and usually requires professional help.
It's recommended to have a qualified mechanic diagnose and repair this code, as several possibilities exist and incorrect repairs could lead to safety hazards. A simple switch replacement might fix it, but a more extensive electrical issue could be present.
