Diagnostic Test

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

VERIFY DTC IS ACTIVE
NOTE:
Make sure the IOD fuse is installed and the battery is fully charged before proceeding.
1. Turn the ignition on.
2. With the scan tool, read active DTCs.
  Is this DTC active?
  
  Yes
  - Perform the U0168-Lost Communication with Vehicle Security Control Module (WIN) diagnostic procedure. Refer to U0168-LOST COMMUNICATION WITH VEHICLE SECURITY CONTROL MODULE (WIRELESS IGNITION NODE OR WIN) .
  No
  - Perform the Stored Lost Communication DTC diagnostic procedure. Refer to STORED LOST COMMUNICATION DTCS .