Diagnostic Test
WARNING: This page is about a different car, the 2012 RAM Pickup and 2012 RAM Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
- VERIFY DIAGNOSTIC TROUBLE CODE (DTC) IS ACTIVE NOTE:
Make sure the IOD fuse is installed and battery voltage is between 10 and 16 volts before proceeding.
- Using the scan tool, read active DTCs.
Is this DTC active?
Yes
- Refer to TIPM - DIAGNOSIS AND TESTING and perform the U0011-CAN Interior Bus Off Performance diagnostic procedure.
No
- Refer to COMMUNICATION - DIAGNOSIS AND TESTING and perform the Stored Lost Communication DTCs diagnostic procedure.
- Using the scan tool, read active DTCs.