Brake Pedal Position Switch Signal Circuit Troubleshooting
Brake Pedal Position Switch Signal Circuit Troubleshooting2004 - 2005 models
1. Turn the ignition switch ON (II).
2. Check the BRAKE SWITCH in the DATA LIST with the HDS.
Does it indicate OFF?
YES - Go to step 3.
NO - Inspect the brake pedal position switch.
3. Press the brake pedal, and check the BRAKE SWITCH in the DATA LIST with the HDS.
Does it change to ON?
YES - The brake pedal position switch signal circuit (BKSW line) is OK.
NO - Go to step 4.
4. Turn the ignition switch OFF.
5. Jump the SCS line with the HDS.
6. Disconnect the brake pedal position switch 4P connector.
7. Disconnect ECM/PCM connector A (31P).
8. Check for continuity between ECM/PCM connector terminal A8 and body ground.
Is there continuity?
YES - Repair short in the wire between the ECM/PCM (A8) and the No.13 HORN, STOP (20 A) fuse. Replace the No.13 HORN, STOP (20 A) fuse.
NO - Go to step 9.
9. Check for continuity between ECM/PCM connector terminal A8 and brake pedal position switch 4P connector terminal No.2.
Is there continuity?
YES - Repair open in the wire between the brake pedal position switch and the No.13 HORN, STOP (20 A) fuse. Inspect the brake pedal position switch.
NO - Repair open in the wire between the ECM/PCM (A8) and the brake pedal position switch.