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Diagnostic Test

WARNING: This page is about a different car, the 2012 RAM Pickup and 2012 RAM Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
  1. 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 IOD fuse is installed and battery voltage is between 10.0 and 16.0 volts.

    2. With the scan tool, read the module status.
      NOTE:

      Check the TIPM for any active CAN hardware DTCs, perform DTC before proceeding.

      Does the scan tool indicate that the 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.
  2. CHECK THE (A909) AND (A412) FUSED B(+) CIRCUITS FOR AN OPEN OR SHORT 
    Fig 1: Checking Fused B(+) Circuits For An Open Or Short
    GC0091300Courtesy of CHRYSLER GROUP, LLC
    1. Turn the ignition off.
    2. Disconnect the Cluster C1 and C3 harness connectors.
    3. Using a 12-volt test light connected to ground, check the (A909) and (A412) Fused B(+) circuit.

      Does the test light illuminate brightly for each circuit?

      Yes 

      • Go To  3.

      No 

      • Repair the open or short in the Fused B(+) circuit.
      • Refer to STANDARD PROCEDURE and perform the BODY VERIFICATION TEST.
  3. CHECK THE (Z911) GROUND CIRCUITS FOR AN OPEN 
    Fig 2: Checking Ground Circuits For An Open
    GC0091301Courtesy of CHRYSLER GROUP, LLC
    1. Disconnect the Cluster C2 harness connector.
    2. Using a 12-volt test light connected to 12-volts, check the (Z911) Ground circuits.

      Does the test light illuminate brightly for each circuit?

      Yes 

      • Go To  4.

      No 

      • Repair the open in the (Z911) Ground circuit.
      • Refer to STANDARD PROCEDURE and perform the BODY VERIFICATION TEST.
  4. CHECK THE (F943) FUSED IGNITION RUN/START CONTROL OUTPUT CIRCUIT FOR AN OPEN OR SHORT 
    Fig 3: Checking Fused Ignition Run/Start Control Output Circuit For An Open Or Short
    GC0091302Courtesy of CHRYSLER GROUP, LLC
    1. Turn the ignition on.
    2. Using a 12-volt test light connected to ground, check the (F943) Fused Ignition Run/Start Control Output circuit.

      Does the test light illuminate brightly?

      Yes 

      • Go To  5.

      No 

      • Repair the open or short in the (F943) Fused Ignition Run/Start Control Output circuit.
      • Refer to STANDARD PROCEDURE and perform the BODY VERIFICATION TEST.
  5. CHECK THE (D265) AND (D264) CAN INTERIOR BUS (125K) CIRCUITS FOR AN OPEN 
    Fig 4: Checking CAN Interior BUS Circuits For An Open
    GC0091303Courtesy of CHRYSLER GROUP, LLC
    1. Measure the resistance of the (D264) CAN Interior Bus (125K) (-) circuit between the TIPM C7 harness connector and the Cluster C3 harness connector.
    2. Measure the resistance of the (D265) CAN Interior Bus (125K) (+) circuit between the TIPM C7 harness connector and the Cluster C3 harness connector.

      Are the resistances below 5.0 Ohms?

      Yes 

      • Replace the Cluster in accordance with the Service Information. Refer to REMOVAL .
      • Refer to STANDARD PROCEDURE and perform the BODY VERIFICATION TEST.

      No 

      • Repair the open in the (D265) or (D264) CAN Interior Bus (125K) circuit.
      • Refer to STANDARD PROCEDURE and perform the BODY VERIFICATION TEST.
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