Circuit/System Testing
WARNING: This page is about a different car, the 2010 Pontiac G5 and 2010 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition OFF, disconnect the harness connector at the Yaw Rate/Lateral Accelerometer.
- Test for less than 6 ohms between the low reference circuit terminal 5 and ground.
- If greater than the specified range, test for an open/high resistance in the low reference circuit. If the circuit tests normal, replace the EBCM.
- Ignition ON, test for 11.8-12.2 volts between the 12-volt reference circuit terminal 3 and ground.
- If less than the specified range, test the 12-volt reference circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the EBCM.
- If greater than the specified range, test the 12-volt reference circuit for a short to voltage. If the circuit tests normal, replace the EBCM.
- If all circuits test normal, replace the Yaw Rate/Lateral sensor.