Test 6D - Right Front Sensor Circuit Failure
NOTE:
Perform TEST 4A before proceeding. For connector terminal and circuit identification, see CONNECTOR IDENTIFICATION . For wiring diagram, see WIRING DIAGRAM . Perform TEST VER-1A after each repair.
- Inspect Right Front (RF) Wheel Speed Sensor (WSS) connector for damage. If connector is okay, turn ignition off. Disconnect RF WSS connector. Inspect sensor and connector for corroded, damaged or backed-out terminal pins. Repair as necessary. If sensor and connector are okay, go to next step.
- Using scan tool in ohmmeter mode, check resistance across WSS terminals. If resistance is 900-1300 ohms, go to next step. If resistance is not as specified, replace RF WSS.
- Check resistance between each sensor terminal and ground. If resistance is 15 k/ohms or more, go to next step. If resistance is less than 15 k/ohms, replace RF WSS.
- Disconnect Controller Anti-Lock Brake (CAB) connectors. Check resistance between CAB connector "B", terminal B1 and ground. If resistance is 15 k/ohms or more, go to next step. If resistance is less than 15 k/ohms, repair RF WSS positive (+) circuit for short to ground.
- Check resistance between CAB connector "B", terminal B2 and ground. If resistance is 15 k/ohms or more, go to next step. If resistance is less than 15 k/ohms, repair RF WSS negative (-) circuit for short to ground.
- Connect a fused jumper wire between ground and RF WSS connector terminal No. 2. Check resistance between CAB connector "B", terminals B1 and B13. If resistance is less than 10 ohms, go to next step. If resistance is 10 ohms or more, repair open in RF WSS sensor positive (+) circuit.
- Move jumper wire between ground and RF WSS connector terminal No. 1. Check resistance between CAB connector "B", terminals B2 and B13. If resistance is less than 10 ohms, replace CAB. If resistance is 10 ohms or more, repair open in RF WSS negative (-) circuit.