Automatic Temperature Control

B2214-Climate Control Internal

For a complete wiring diagram, refer to.

• When Monitored: Continuously with the ignition on.

• Set Condition: If the A/C Heater Control detects an internal controller malfunction.






Always perform the HVAC Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to => Non-DTC Based
Diagnostics. HVAC Pre-Diagnostic Troubleshooting Procedure

Test Step 1 - CHECK THE A/C HEATER CONTROL



Repair

• Check for any controller software updates if applicable. If an update is available, reprogram the controller with the latest software. If no software updates are available, replace and program the A/C Heater Control.

• Perform the HVAC Verification Test. Refer to => Non-DTC Based Diagnostics. HVAC Verification Test