DTC’s C121A / C2205 – Steering Angle Sensor – Not Initialized / Internal – TSB 08-010-07

The vehicle operator may experience an illumination of the Electronic Stability Program (ESP) lamp on the vehicle instrument cluster. The ESP lamp illumination may be due to the following Diagnostic Trouble Codes (DTC’s):

C121A – Steering Angle Sensor Not Initialized

C2205 – Steering Angle Sensor Internal

This condition, and DTC’s, may be intermittent. If the above DTC’s occur during a drive cycle, then the ESP lamp will remain illuminated until the end of that drive cycle (key off).