Circuit/System Testing
- Ignition OFF, disconnect the harness connector at all 4 suspension position sensors.
- Ignition ON, test for 4.75-5.25 volts between the 5 volt reference circuit terminal A and ground at each sensor connector.
- If less than the specified range, test the 5 volt reference circuit for a short to ground or an open/high resistance. If all circuits test normal, replace the ESC module.
- If greater than the specified range, test the 5 volt reference circuit for a short to voltage. If the circuit tests normal, replace the ESC module.
- Reinstall each sensor, one at a time, while verifying for 4.75-5.25 volts between the 5 volt reference circuit terminal A and ground of the last sensor connector to be connected.
- If the voltage is out of the range when one of the 3 sensors are connected, test or replace the suspect suspension position sensor.
- Test or replace the last remaining suspect suspension position sensor.