Brake Pad Indicator Sensor Circuit
NOTE:
If LEXUS scan tool is available, start test from step 1. If this scan tool is not available, start test from step 2.
- Using scan tool, check brake pad sensor circuit using DATA LIST. If brake pad sensor is okay, go to next test listed in appropriate SYMPTOM DIAGNOSIS table under TROUBLE SHOOTING . If brake pad sensor is not okay, go to next step.
- Disconnect brake pad sensor wear indicator 2-pin connector. Check continuity between connector terminals. If continuity is present, sensor is okay. Go to next step. If continuity is not present, replace sensor.
- Check circuits for faults between brake pad sensor wear indicator and body No. 3 ECU. See WIRING DIAGRAMS . Repair or replace as necessary. If circuits are okay, go to next test listed in BODY NO. 3 CONTROL SYSTEM table under TROUBLE SHOOTING .