( TL19E00K80100081680FAAT00 )

DTC Troubleshooting: 68

DTC 68:
Brake Pedal Position Switch

1. Turn the ignition switch to ON (II).

1. Check for other DTCs.

Is another DTC indicated?

YES | - | Do the appropriate troubleshooting for the DTC.■
NO | - | Go to Step 3 .

1. Turn the ignition switch to LOCK (0).

1. Check the brake pedal position switch, and adjustment.

Is the switch and adjustment OK?

YES | - | Go to Step 5 .
NO | - | Adjust the brake pedal position switch. If necessary, replace the brake pedal position switch. ■

1. Turn the ignition switch to ON (II).

1. Clear the DTC with the HDS.

1. Test-drive the vehicle.
   NOTE: Drive the vehicle on a straight section of road, not on a lift.

1. Check for DTCs with the HDS.

Is DTC 68 indicated?

YES | - | Go to Step 9 .
NO | - | The system is OK at this time.■

1. Troubleshoot the brake pedal position switch signal circuit:
   - R20A3 engine model.
   - K24Z3 engine model.

Is the brake pedal position switch circuit OK?

YES | - | Go to Step 10 .
NO | - | Repair the brake pedal position switch circuit.■

1. Reconnect all connectors.

1. Update the ECM/PCM if it does not have the latest software: R20A3 engine model, K24Z3 engine model, or substitute a known-good ECM/PCM: R20A3 engine model, K24Z3 engine model.

1. Clear the DTC with the HDS.

1. Test-drive the vehicle.
   NOTE: Drive the vehicle on a straight section of road, not on a lift.

1. Check for DTCs with the HDS.

Is DTC 68 indicated?

YES | - | Check for loose terminals in the ECM/PCM connector A (44P) or the ECM/PCM connector A (49P). If the ECM/PCM was updated, substitute a known-good ECM/PCM: R20A3 engine model, K24Z3 engine model, then retest. If the ECM/PCM was substituted, go to Step 15 .
NO | - | If the ECM/PCM was updated, troubleshooting is complete. If the ECM/PCM was substituted, replace the original ECM/PCM: R20A3 engine model, K24Z3 engine model. ■

1. Update the VSA modulator-control unit if it does not have the latest software. If the unit already has the latest software, substitute a known-good VSA modulator-control unit.

1. Test-drive the vehicle.
   NOTE: Drive the vehicle on a straight section of road, not on a lift.

1. Check for DTCs with the HDS.

Is DTC 68 indicated?

YES | - | Check for loose terminals in the VSA modulator-control unit 47P connector. If the VSA modulator-control unit was updated, substitute a known-good VSA modulator-control unit, then retest. If the VSA modulator-control unit was substituted, go to Step 1 .
NO | - | If the VSA modulator-control unit was updated, troubleshooting is complete. If the VSA modulator-control unit was substituted, replace the original VSA modulator-control unit. If any other DTCs are indicated, go to the indicated DTCs troubleshooting.■