How to Troubleshoot DTCs

Check for DTCs with the HDS. Make a copy of the freeze data, then clear the DTC.

Before troubleshooting, check and note these items:

• Ask the client about the conditions when the problem occurred, and try to reproduce the same conditions for troubleshooting.
• If the symptom does not appear and the LKAS indicator does not come on while test-driving and if your troubleshooting was based on a DTC, check for poor connections or loose terminals at all connectors related to the circuit that you are troubleshooting.
• After the troubleshooting or repairs are done, clear the DTCs, and test-drive the vehicle under the same conditions as when the DTC was originally set. Make sure the LKAS indicator does not come on.
• The LKAS sometimes stops operating because of the environment (weather, road conditions, driving conditions, etc.). A code may be stored in these cases.

DTCs may be stored even when the system is OK: 

DTC B2A60-52: Dynamic Camera Aiming Incomplete 

DTC B2A60-54: Static Camera Aiming Incomplete 

DTC C0051-62: Steering Angle Sensor Straight Point Error 

DTC C0051-96: Steering Angle Sensor Malfunction 

DTC C1040-00: Wheel Speed Signal Error 

DTC U0100-00: Lost Communication With The PCM (PGM-FI System) 

DTC U0101-00: Lost Communication With The PCM/TCM 

DTC U0122-00: Lost Communication With The VSA Modulator-Control Unit 

DTC U0155-00: Lost Communication With The Gauge Control Module 

DTC U0420-68: EPS Control Unit Malfunction