| 1. | Check the brake lights. Are the brake lights on without pressing the brake pedal? YES - Inspect the brake pedal position switch.n NO - Go to 2. |
| 2. | Press the brake pedal. Do the brake lights come on? YES - Go to 3. NO - Go to 4. |
| 3. | Measure voltage between ECM/PCM connector terminals A24 and E22 with the brake pedal pressed.
Is there battery voltage? YES - The brake pedal position switch signal is OK.n NO - Repair open in the wire between the ECM/ PCM (E22) and the brake pedal position switch.n |
| 4. | Inspect the No. 16 (10A) fuse in the under-hood fuse/relay box. Is the fuse OK? YES - Repair open in the wire between the brake pedal position switch and the No. 16 (10A) fuse. Inspect the brake pedal position switch.n NO - Repair short in the wire between the ECM/ PCM (E22) and the No. 16 (10A) fuse. Replace the No. 16 (10A) fuse.n |