Circuit/System Testing
WARNING: This page is about a different car, the 2008 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition OFF, disconnect the yaw rate and lateral acceleration sensor connector.
- Ignition OFF, test for less than 1 ohm of resistance between the low reference circuit terminal 6 and ground.
- If greater than 1 ohm, test the low reference circuit terminal 6 and the EBCM ground circuit terminal 25 for an open/high resistance. If the circuits test normal, replace the EBCM.
- Test the lateral accelerometer 12-volt reference circuit terminal 1, for an open/high resistance or a short to voltage or ground.
- If all circuits test normal, replace the yaw rate sensor/lateral acceleration sensor, and clear the yaw rate sensor offset value in the EBCM.
- If the DTC sets again after replacing the yaw rate sensor/lateral acceleration sensor, replace the EBCM.