Harness Test

1. Check the wiring harness between the ABS/TCS control module and TCS OFF switch for short to ground.
2. Remove the ABS/TCS control module connector.
3. Measure the resistance between 1N and ground.
^ When switch is pressed: 100 Ohms or less
^ When switch is released: infinity
4. If not within the specification, check the harness and the TCS OFF switch.