C0186 4B

WARNING: This page is about a different car, the 2008 GMC Yukon and 2008 Chevrolet Tahoe. However, it is still accessible from the selected car via links, so may be relevant.

Ignition ON, verify that DTC C0186 4B is not set.

If the DTC is set, with a scan tool perform the Acceleration Sensor Rest procedure.

C0186 00, 09, 18, 11 or C0196 00, 09, 11, 18

Ignition ON, verify that DTC U0125 are not set.
- If the DTC is set, refer to Diagnostic Trouble Code (DTC) List - Vehicle .
Verify the yaw/lateral accelerometer is mounted properly.
- If not mounted properly, refer to Vehicle Yaw Sensor with Vehicle Lateral and Longitudinal Accelerometer Replacement .
Replace the yaw/lateral accelerometer sensor. If the DTC resets, replace the EBCM.