DTC 68
DTC 68: Brake Pedal Position Switch1. Turn the ignition switch ON (II).
2. Check for the fuel and emission systems (PGM-FI) DTCs with the HDS.
Are any ECM/PCM DTCs indicated?
YES - Do the appropriate troubleshooting for the DTC.
NO - Go to step 3.
3. Check the brake pedal position switch.
Is the brake pedal position switch OK?
YES - Go to step 4.
NO - Replace the brake pedal position switch.
4. Clear the DTC with the HDS.
5. Turn the ignition switch OFF, then disconnect the HDS.
6. Test-drive the vehicle.
7. Check for DTCs with the HDS.
Is DTC 68 indicated?
YES - Go to step 8.
NO - The system is OK at this time. Refer to intermittent failures.
8. Troubleshoot the brake pedal position switch signal circuit.
Is the brake pedal position switch circuit OK ?
YES - Substitute a known-good ECM/PCM, and retest:
^ If the problem is gone, replace the original ECM/PCM.
^ If the problem continues, check for loose terminals in the VSA modulator-control unit 47P connector. If no loose terminals are found, replace the VSA modulator-control unit.
NO - Repair the brake pedal position switch circuit.