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.

TEST FOR INTERMITTENT CONDITION
NOTE:
Be sure the thumbwheels on the Dimmer Module are turned fully on during this test.
1. Turn the ignition on.
2. With the scan tool, record and erase the DTCs.
3. Cycle the ignition on to off three times and leave the ignition in the Lock position.
4. Turn the park lamps on.
5. Turn the ignition on and wait one minute.
6. With the scan tool, read the active DTCs.
  Does the scan tool display: B2860-15-DOOR AMBIENT LAMP CONTROL - CIRCUIT SHORT TO BATTERY OR OPEN?
  
  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.
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .
(M35) PASSENGER DOOR AMBIENT LAMP DRIVER CIRCUIT SHORTED TO VOLTAGE

Fig 1: Checking Passenger Door Ambient Lamp Driver Circuit For Short To Voltage
Courtesy of CHRYSLER GROUP, LLC
1. Turn the ignition off.
2. Remove the inner door panel trim in accordance with the Service Information. Refer to PANEL, DOOR TRIM, REMOVAL .
3. Leave the Passenger Door Map Pocket and Handle Lamp connectors connected.
4. Disconnect the Passenger Door Module C5 harness connector.
5. Turn the ignition on.
6. Measure the voltage between ground and the (M35) Passenger Door Ambient Lamp Driver circuit in the Passenger Door Module C5 harness connector.
  Is there any voltage present?
  
  Yes
  - Repair the (M35) Passenger Door Ambient Lamp Driver circuit for a short to voltage.
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  No
  - Go To 3
(M35) PASSENGER DOOR AMBIENT LAMP DRIVER CIRCUIT OPEN

Fig 2: Checking Passenger Door Ambient Lamp Driver Circuit For Open
Courtesy of CHRYSLER GROUP, LLC
1. Turn the ignition off.
2. Be sure the Passenger Door Map Pocket and Door Handle Lamp connectors are still connected.
3. Turn the ignition on.
4. Connect one end of a fused jumper wire to B (+) and the other end to the (M35) Passenger Door Ambient Lamp Driver circuit in the PDM C5 harness connector.
5. Connect another jumper wire to ground and to the (M36) Passenger Door Lighting Return circuit in the PDM C5 harness connector
  Do the Passenger Door Map Pocket and Handle Lamps illuminate brightly?
  
  Yes
  - Replace the Passenger Door Module in accordance with the Service Information. Refer to MODULE, DOOR, REMOVAL .
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  No
  - Go To 4
(M35) PASSENGER DOOR AMBIENT LAMP DRIVER CIRCUIT OPEN
1. Turn the ignition off and remove both jumper wires.
2. Disconnect the Passenger Door Map Pocket and Handle Lamp harness connectors.
3. Measure the resistance of the (M35) Passenger Door Ambient Lamp Driver circuit between the PDM C5 harness connector and the Passenger Door Map Pocket Lamp harness connector.
4. Measure the resistance of the (M35) Passenger Door Ambient Lamp Driver circuit between the PDM C5 harness connector and the Passenger Door Handle Lamp harness connector.
  Is the resistance below 2.0 Ohms on both the Map Pocket and Handle circuits?
  
  Yes
  - Go To 5
  No
  - Repair the open in the (M35) Passenger Door Courtesy Lamp Driver circuit.
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .
(M36) PASSENGER DOOR LIGHTING RETURN CIRCUIT OPEN
1. Measure the resistance of the (M36) Passenger Door Lighting Return circuit between the PDM C5 harness connector and the Passenger Door Map Pocket Lamp harness connectors.
2. Measure the resistance of the (M36) Passenger Door Lighting Return circuit between the PDM C5 harness connector and the Passenger Door Handle Lamp harness connectors.
  Is the resistance below 2.0 Ohms on both the Map Pocket and Handle circuits?
  
  Yes
  - Replace the Passenger Door Ambient Lamp(s) as necessary.
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  No
  - Repair the open in the (M36) Passenger Door Lighting Return circuit.
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .