Circuit/System Testing

WARNING: This page is about a different car, the 2007 Buick Lucerne. However, it is still accessible from the selected car via links, so may be relevant.

C0196 00

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.

C0196 28

Ignition OFF, disconnect the yaw rate sensor/lateral accelerometer connector and EBCM connector.
Test for infinite resistance between the yaw rate frequency circuit and ground.
- If less than infinite resistance, test the yaw rate frequency circuit for a short to ground.
Test for less than 1 ohm of resistance on the yaw rate frequency circuit between the yaw rate sensor/lateral accelerometer connector and EBCM connector.
- If greater than 1 ohm, test the yaw rate frequency circuit for an open/high resistance.
Replace yaw rate sensor/lateral accelerometer, and clear the yaw rate sensor offset value in the EBCM. If C0196 28 is still current, replace the EBCM.