Diagnostic Test
WARNING: This page is about a different car, the 2005 Jeep Grand Cherokee. However, it is still accessible from the selected car via links, so may be relevant.
- 1) VERIFY THAT DTC B142A-RADIO UNIT HIGH TEMPERATURE IS ACTIVE.
With the Scan Tool, erase the Audio DTC's.
Start the engine and allow the engine to reach normal operating temperature.
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.
The Radio should operate between -23°C and 65°C ( -10°F and +145°F ).
With the Scan Tool, read the DTC's.
Does the Scan Tool display, B142A- Radio Unit High Temperature?
Yes
- Replace the Radio in accordance with the service information.
- Perform BODY VERIFICATION TEST - VER 1 .
No
- Test Complete.