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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. ACTIVE DTC 
    1. Ignition on, engine not running.
    2. With the scan tool, erase DTC's.
    3. Cycle the ignition key on and off several times.
    4. With the scan tool, read DTC's.

      Does the DTC reset?

      Yes 

      • Go To  2.

      No 

      • Go To  4.
  2. COMMUNICATE WITH CLUSTER 
    1. With the scan tool, attempt to communicate with the Instrument Cluster.

      Can communication be established with the Instrument Cluster?

      Yes 

      • Go To  3.

      No 

  3. INSTRUMENT CLUSTER OPERATION 
    1. Start the engine
    2. Allow the engine to idle.

      Is the correct engine speed display in the instrument cluster (Tach)?

      Yes 

      No 

  4. INTERMITTENT WIRING AND CONNECTORS 
    1. The conditions necessary to set this DTC are not present at this time.
    2. Using the schematics as a guide, inspect the wiring and connectors specific to this circuit.
    3. Wiggle test the wiring harness and connectors while checking for shorted and open circuits.
    4. Using the scan tool, monitor the data related to this circuit while performing the wiggle test. Look for the data to change or for the DTC to reset.

      Were there any problems found?

      Yes 

      No 

      • Test complete.