Diagnostic Test

WARNING: This page is about a different car, the 2016 RAM 3500 HD and 2016 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.

TEST FOR INTERMITTENT CONDITION
NOTE:
Check for any TSB(s) related to the condition. If a TSB applies, perform the procedure outlined in the TSB before continuing.
1. Turn the ignition on.
  NOTE:
  Make sure the battery is fully charged.
2. With the scan tool, read the module status.
  NOTE:
  Check the BCM for any active CAN hardware DTCs. If any are present, perform the appropriate DTC test before proceeding. Refer to the DTC INDEX - 2500 HD & 3500 HD article.
  
  Does the scan tool indicate that the PDM module is active on the bus?
  
  Yes
  - The no response condition is 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.
  No
  - Go To 2
CHECK THE (A925) FUSED B(+) CIRCUIT FOR AN OPEN OR SHORT

Fig 1: Checking Fused B(+) Circuit For Open Or Short
Courtesy of CHRYSLER GROUP, LLC

NOTE:
Leave the scan tool connected and on the initial network screen.
1. Turn the ignition off.
2. Disconnect the Passenger Door Module C3 harness connector.
3. Using a 12-volt test light connected to ground, check the (A925) Fused B (+) circuit.
  Does the test light illuminate brightly?
  
  Yes
  - Go To 3
  No
  - Repair the open or short in the (A925) Fused B (+) circuit.
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .
CHECK THE (Z911) GROUND CIRCUIT FOR AN OPEN

Fig 2: Checking Ground Circuit For An Open
Courtesy of CHRYSLER GROUP, LLC
1. Using a 12-volt test light connected to 12-volts, check the (Z911) Ground circuit.
  Does the test light illuminate brightly?
  
  Yes
  - Go To 4
  No
  - Repair the open in the (Z911) Ground circuit.
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .
CHECK THE CAN IHS BUS VOLTAGE AT THE MODULE
1. Using a DVOM measure the voltage of the (D214) CAN Interior Bus (125K) (-) circuit at Passenger Door Module C3 harness connector and compare to Service Information. Refer to COMMUNICATION, OPERATION .
2. Using a DVOM measure the voltage of the (D213) CAN Interior Bus (125K) (+) circuit at Passenger Door Module C3 harness connector and compare to Service Information. Refer to COMMUNICATION, OPERATION .
  Do the voltages found indicate the CAN IHS Bus is active, when compared to Service Information?
  
  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
  - Repair the open or short in the (D213) or (D214) CAN Interior Bus (125K) circuit. Inspect the connector for damage.
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .