Diagnostic Test

CHECK FOR AN ACTIVE DTC
1. Turn the ignition on.
2. With the scan tool, read DTCs.
  Does the scan tool read: B161A-COURTESY/DOME LAMP CONTROL CIRCUIT?
  
  Yes
  - Go To 2.
  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.
CHECK THE (M24) COURTESY LAMPS DRIVER CIRCUIT FOR A SHORT TO GROUND

Fig 1: Measuring Resistance Between Courtesy Lamp Driver Circuit & Ground
Courtesy of CHRYSLER GROUP, LLC
1. Turn the ignition off.
2. Disconnect the Cluster C2 harness connector.
3. Measure the resistance between the (M24) Courtesy Lamp Driver circuit and ground.
  Is the resistance below 5.0 Ohms?
  
  Yes
  - Repair the short to ground in the (M24) Courtesy Lamp Driver circuit.
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE - BODY VERIFICATION TEST .
  No
  - Go To 3.
CHECK THE (M24) COURTESY LAMPS DRIVER CIRCUIT FOR AN OPEN

Fig 2: Checking Courtesy Lamps Driver Circuit For An Open
Courtesy of CHRYSLER GROUP, LLC
1. Turn the ignition off.
2. Disconnect the Dome Lamp harness connector.
3. Measure the resistance of the (M24) Courtesy Lamp Driver circuit between the Cluster C2 and Dome Lamp harness connectors.
  Is the resistance above 5.0 Ohms?
  
  Yes
  - Repair the open in the (M24) Courtesy Lamp Driver circuit.
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE - BODY VERIFICATION TEST .
  No
  - Replace the Cluster in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE - BODY VERIFICATION TEST .