Climate Control

DTC Troubleshooting: B1202

DTC B1202:

Front Climate Control Unit Internal Error

NOTE:

- Check the battery condition Testing and Inspection and the charging system Charging System Indicator Circuit Troubleshooting.
- If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN system diagnosis test mode A Troubleshooting - B-CAN System Diagnosis Test Mode A.

1. Turn the ignition switch to LOCK (0), then turn to ON (II).

2. Turn the climate control system on and operate several functions (A/C ON/OFF, air mix and blend door operations, temperature settings etc.).

3. Check for DTCs using the HDS How to Troubleshoot the Climate Control System.

Is DTC B1202 indicated?

YES -

The front climate control unit is faulty, replace the front climate control unit Front Climate Control Unit Removal/Installation.�

NO -

Intermittent failure, the front climate control unit is OK at this time. Check for loose or poor connections at the front climate control unit 30P connector.�