Circuit/System Testing

C0196 00

1. Inspect the yaw rate sensor for proper and secure mounting.
2. Ignition OFF, disconnect the yaw rate sensor/lateral accelerometer connector.
3. Ignition OFF, test for less than 1 ohm of resistance between the low reference circuit terminal 6 and ground.
   • If greater than 1 ohm, remove the EBCM connector and test for less than 1 ohm of resistance between the low reference terminal 22 and ground terminal 16 of the EBCM. If less than 1 ohm, then repair the low reference circuit or the EBCM ground circuit for a short to voltage or an open/high resistance. If greater than 1 ohm then replace the EBCM.
4. Test the yaw rate sensor signal circuit terminal 3, the lateral accelerometer signal circuit terminal 2, the 5-volt reference circuit terminal 1, and the low reference circuit terminal 6 for an open/high resistance or a short to voltage or ground.
   • If all circuits test normal, replace the yaw and 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 accelerometer, replace the EBCM.

C0196 28

1. If DTC C0196 00 is also set as current then diagnose that DTC first.
2. Ignition OFF, disconnect the yaw and lateral acceleration sensor connector.
3. Measure the resistance between the yaw rate frequency circuit terminal 4 and ground.
   • If the resistance is outside 4.5k +/- 2k ohms, remove the EBCM connector and measure the resistance between terminals 9 and 16 on the EBCM. If the measured resistance is outside 4.5k +/- 2k ohms, then replace the EBCM. Otherwise test the yaw rate diagnostic circuit terminal 4 for an open circuit or short to ground. This includes all bulkhead and splice connectors in the harness between the EBCM and the sensor.
   • If the yaw rate diagnostic circuit tests normal, replace the yaw and lateral acceleration sensor, and clear the yaw rate sensor DTCs in the EBCM.
4. If the DTC sets again, replace the EBCM.