Circuit/System Testing
WARNING: This page is about a different car, the 2007 Pontiac Solstice. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition OFF, disconnect the yaw rate sensor/lateral accelerometer connector.
- Ignition OFF, test for less than 1 ohm of resistance between the low reference circuit and ground.
- If greater than 1 ohm, test the low reference circuit and the EBCM ground circuit for a short to voltage or an open/high resistance. If the circuits test normal, replace the EBCM.
- Test the lateral accelerometer signal circuit, the 5 volt reference circuit, and the low reference circuit for an open/high resistance or a short to voltage or ground.
- If all circuits test normal, replace the yaw rate sensor/lateral accelerometer, and clear the yaw rate sensor offset value in the EBCM.
- If the DTC sets again after replacing the yaw rate sensor/lateral accelerometer, replace the EBCM.