Diagnostic Test

PASSENGER DOOR LATCH INOPERATIVE
NOTE: Graphics in this test show Passenger Front Latch (LHD) but the other 2 passenger latches are identical. They are also similar for RHD.

Fig 1: Connecting Test Light Between Door Lock Driver Circuit & Passenger Door Unlock Driver Circuit
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Disconnect the inoperative Passenger Door latch connector.
3. Connect a test light between the (P392/3) Door Lock Driver circuit and the (P303) Passenger Door Unlock Driver circuit.
4. Close the front doors or trip the door latches to the closed position.
5. Operate the door locks in both positions and observe the test light.
  Does the test light illuminate brightly for approximately 300 ms. when the door locks are actuated?
  
  Yes
  - Replace the Passenger Door Latch.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
  No
  - Go to Step 2.
CHECK (P303) PASSENGER DOOR UNLOCK DRIVER CIRCUIT FOR AN OPEN

Fig 2: Measuring Resistance Of Passenger Door Unlock Driver Circuit Between Latch Connector & Cluster C1 Connector
Courtesy of CHRYSLER LLC
1. Disconnect the Cluster C1 connector.
2. Measure the resistance of the (P303) Passenger Door Unlock Driver circuit between the Latch connector and the Cluster C1 connector.
  Is the resistance below 2.0 ohms?
  
  No
  - Repair the (P303) Passenger Door Unlock Driver circuit for an open.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
  Yes
  - Go to Step 3.
CHECK (P303) PASSENGER DOOR UNLOCK DRIVER CIRCUIT FOR A SHORT TO GROUND

Fig 3: Measuring Resistance Between Ground & Passenger Door Unlock Driver Circuit
Courtesy of CHRYSLER LLC
1. Measure the resistance between Ground and the (P303) Passenger Door Unlock Driver circuit.
  Is the resistance below 1,000 ohms?
  
  Yes
  - Repair the (P303) Passenger Door Unlock 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 4.
CHECK (P392/3) DOOR LOCK DRIVER CIRCUIT FOR AN OPEN

Fig 4: Measuring Resistance Of Door Lock Driver Circuit Between Cluster C1 Connector & Passenger Door Latch Connector
Courtesy of CHRYSLER LLC
1. Measure the resistance of the (P392/3) Door Lock Driver circuit between the Cluster C1 connector and the Passenger Door Latch connector.
  Is the resistance below 2.0 ohms?
  
  Yes
  - Repair the (P392/3) Door Lock 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
  - Repair the (P392/3) Door Lock Driver circuit for an open.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .