Diagnostic Test

TEST FOR INTERMITTENT CONDITION
1. Turn the ignition on.
2. Turn the Reading Lamps on.
3. With the scan tool, read DTCs.
  Does the scan tool display this DTC as active?
  
  Yes
  - Go to step 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.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
CHECK THE (M27) READING/RAIL LAMPS DRIVER CIRCUIT FOR A SHORT TO GROUND

Fig 1: Measuring Resistance Between Ground & Reading/Rail Lamps Driver Circuit
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Disconnect the Cargo Lamp harness connector.
3. Disconnect the Cluster C2 harness connector.
4. Measure the resistance between ground and the (M27) Reading/Rail Lamps Driver circuit.
  Is the resistance below 10K Ohms?
  
  Yes
  - Repair the (M27) Reading/Rail Lamps Driver circuit for a short to ground.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
  No
  - Go to step 3
CHECK THE (M27) READING/RAIL LAMPS DRIVER CIRCUIT FOR AN OPEN

Fig 2: Measuring Resistance Of Reading/Rail Lamps Driver Circuit
Courtesy of CHRYSLER LLC
1. Measure the resistance of the (M27) Reading/Rail Lamps Driver circuit.
  Is the resistance above 10.0 Ohms?
  
  Yes
  - Repair the (M27) Reading/Rail Lamps Driver circuit for an open.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
  No
  - Replace the Cluster in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .