Diagnostic Test

WARNING: This page is about a different car, the 2013 Chrysler 300. However, it is still accessible from the selected car via links, so may be relevant.

VERIFY THAT DTC B142A-4B RADIO UNIT HIGH TEMPERATURE- OVER TEMPERATURE IS ACTIVE.
1. With the scan tool, erase the TGW DTCs.
2. Start the engine and allow the engine to reach normal operating temperature.
3. If the vehicle has been in the hot sunlight or extreme cold, move the vehicle indoors and open the doors to allow the inside temperature to stabilize.
4. The TGW should operate between -23°C and 65°C (-10°F and 149°F).
5. With the scan tool, read the DTCs.
  Does the scan tool display: B142A-4B RADIO UNIT HIGH TEMPERATURE- OVER TEMPERATURE as active?
  
  Yes
  - Turn the Telematics Gateway (TGW) off and allow the unit to cool.
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  No
  - Test Complete.