Diagnostic Test

WARNING: This page is about a different car, the 2011 RAM Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.

ACTIVE DTC
1. Ignition on, engine not running.
2. With the scan tool, select view PCM DTCs.
  Is the DTC Active at this time?
  
  Yes
  - Perform the U0001-Can C Bus diagnostic procedure. Refer to U0001-CAN C BUS CIRCUIT .
  No
  - Perform the Stored Lost Communication DTCs diagnostic procedure. Refer to STORED LOST COMMUNICATION DTCS .