P0571

DTC Troubleshooting: P0571

DTC P0571: Brake Pedal Position Switch Circuit

NOTE: DTC P0571 may be stored when both the brake pedal and the accelerator pedal are pressed at the same time for 5 minutes, and the vehicle speed is 12 mph (20 km/h) or more.

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

2. Check brake pedal position switch adjustment. Adjustments

Is the switch adjustment OK?
YES - Go to step 3.

NO - Adjust the brake pedal position switch. Adjustments


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

4. Check the BRAKE PEDAL POSITION SWITCH in the DATA LIST with the HDS when the brake pedal is not pressed.

Is OFF indicated?
YES - Go to step 5.

NO - Go to step 9.


5. Check the BRAKE PEDAL POSITION SWITCH in the DATA LIST with the HDS when the brake pedal is pressed.

Is ON indicated?
YES - Intermittent failure, the system is OK at this time. Check for loose terminals between the brake pedal position switch 4P connector and PCM connector A (44P). Refer to intermittent failures troubleshooting. Initial Inspection and Diagnostic Overview

NO - Go to step 6.


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

7. Disconnect the brake pedal position switch 4P connector.

8. Check the brake pedal position switch. Testing and Inspection

Is the switch OK?
YES - Repair open in the wire between the brake pedal position switch and the PCM.

NO - Replace the brake pedal position switch. Adjustments


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

10. Disconnect the brake pedal position switch 4P connector.

11. Check the brake pedal position switch. Testing and Inspection

Is the switch OK?
YES - Repair short in the wire between the brake pedal position switch and the PCM.

NO - Replace the brake pedal position switch. Adjustments