Diagnostic Test

WARNING: This page is about a different car, the 2013 RAM 3500 HD and 2013 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.

CHECK FOR AN ACTIVE DTC
NOTE:
Before proceeding with the diagnostic procedure, verify that the connections are properly made, seated and verify proper pin terminal tension. A loose connection at any of the SCCM connectors may cause the DTC to set.
1. Turn the ignition on.
2. Actuate the Flash To Pass/Optical Horn Switch twice. (The scan tool can be used to monitor switch status. Status can be viewed in the SCCM data display.)
3. With the scan tool, read DTCs.
  Does the scan tool display this DTC as active?
  
  Yes
  - Replace the Multifunction Switch in accordance with the Service Information. Refer to SWITCH, MULTIFUNCTION, REMOVAL .
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  No
  - Test complete, the condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension.
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .