DTC 12

ABS DTC 12: Wheel Sensor (Electrical Noise/Intermittent Interruption)

NOTE: If the ABS indicator comes on for the reasons described below, the indicator goes off when you test drive the vehicle at 19 mph (30 km/h).
- Only the drive wheel rotated
- The vehicle spun
- Electrical noise





1. Visually check for appropriate wheel sensor and pulser installation (see table).
Are they installed correctly?
YES-Go to step 2.
NO-Reinstall or replace the appropriate wheel sensor or pulser.





2. Disconnect ABS/TCS control unit connector A (26P).
3. Measure the resistance between the appropriate wheel sensor (+) and (-) circuit terminals (see table).
Is there less than 450 ohms ?
YES-Go to step 4.
NO-Go to step 5.
4. Disconnect the harness 2P connector from the appropriate wheel sensor, and measure the resistance between the (+) and (-) circuit terminals.
Is there less than 450 ohms ?
YES-Replace the wheel sensor.
NO-Repair short in the appropriate wheel sensor (+) and (-) circuit wires.





5. Check for continuity between the appropriate wheel sensor (+) circuit terminal and other wheel sensor (+) circuit terminals (see table).
Is there continuity?
YES-Repair short to wire between the appropriate wheel sensor and the other wheel sensor.
NO-Clear the DTC, and test-drive the vehicle. If the ABS/TCS indicator comes on and the same DTC is indicated, replace the ABS/TCS control unit.