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.

CHECK FOR AN ACTIVE DTC
1. Turn the ignition on.
2. With the scan tool, record and erase DTCs.
3. Activate the Panel Dimmer Switch.
4. Wait 30 seconds.
5. With the scan tool, read DTCs.
  Is the DTC active?
  
  Yes
  - Go To 2.
  No
  - The condition that caused this code to set is not present at this time. Check for an intermittent condition by inspecting the related wiring harness for chafed, pierced, pinched, and partially broken wires. Also inspect the related connectors for broken, bent, pushed out, spread, corroded, or contaminated terminals.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
CHECK OPERATION OF HEADLAMP SWITCH
1. Disconnect the Headlamp Switch harness connector.
2. With the scan tool, read Cluster DTCs.
  Is the DTC active?
  
  Yes
  - Go To 3.
  No
  - Replace the Headlamp Switch in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
CHECK THE (E2) PANEL LAMPS DIMMER SIGNAL CIRCUIT FOR A SHORT TO GROUND

Fig 1: Checking Panel Lamps Dimmer Signal Circuit For A Short To Ground
Courtesy of CHRYSLER GROUP, LLC
1. Turn the ignition off.
2. Disconnect the Cluster C3 harness connector.
3. Measure the resistance between ground and the (E2) Panel Lamps Dimmer Signal circuit.
  Is the resistance below 10K Ohms?
  
  Yes
  - Repair the (E2) Panel Lamps Dimmer Signal circuit for a short to ground.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Replace the Cluster in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .