Code 38, TCC Brake Switch Error: Notes
PCM monitors activity of the normally-closed brake switch. Switch opens when brake pedal is applied.
NOTE:
Test numbers refer to numbers on diagnostic chart.
- Checks for voltage at brake switch.
- Simulates brake switch closed or brakes off. Checks TCC brake switch circuit between PCM and switch.
- Checks circuit between TCC brake switch and PCM. Test opens TCC brake switch, simulating brakes applied.