Diagnostic Test

2015 Dodge and Ram 1500 Special ServiceSECTION Diagnostic Test
  1. VERIFY THE DTC IS ACTIVE 
    NOTE:

    Diagnose all CAN B and C communication DTCs before continuing.

    1. Ignition on, engine not running.
    2. With the scan tool, read DTCs.

      Is the DTC active at this time?

      Yes 

      • Go To  2

      No 

      • Go To  3
  2. CHECK FOR SAS DTCS 
    1. With the scan tool, read DTCs in the Anti-lock Brake System (ABS) Module.

      Are there any SAS DTCs present?

      Yes 

      No 

      • Using the schematics as a guide, check the Drive Train Control Module (DTCM) pins, terminals, and connectors for corrosion, damage, or terminal push out. Pay particular attention to all power and ground circuits. If no problems are found, replace the Drive Train Control Module (DTCM) in accordance with the Service Information. Refer to MODULE, DRIVETRAIN CONTROL, REMOVAL .
      • Perform DTCM VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  3. INTERMITTENT WIRING HARNESS AND CONNECTORS 
    1. The conditions necessary to set this DTC are not present at this time.
    2. Using the wiring diagram/schematic as a guide, inspect the wiring harness and connectors.
    3. Wiggle test the wiring harness and connectors while monitoring the scan tool data relative to this circuit.
    4. Look for the data to change or for the DTC to reset during the wiggle test.

      Were any problems found?

      Yes 

      No 

      • Test complete.
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.