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Home >> Dodge and Ram >> 2009 >> Sprinter 2500, Van Cargo >> Repair and Diagnosis >> Accessories & Equipment >> Cruise Control Systems >> (Programmable Special Module (PSM) - Electrical Diagnostics) >> DTC Troubleshooting >> DTC 950D: Working Speed Regulator Control Circuit Performance >> Diagnostic Test

Diagnostic Test

  1. TEST FOR INTERMITTENT CONDITION 
    1. Check the fault freeze frame data for more information.
    2. With the scan tool, record and erase DTCs
    3. Start the engine.
    4. Turn the engine off, leaving the ignition in the on position.
    5. With the scan tool, read DTCs.

      Does the scan tool display this DTC as active?

      Yes 

      • Go to step  2

      No 

      • The condition that caused this symptom is currently not present. Check for an intermittent condition by inspecting the related wiring harness for chafed, pierced, pinched, and partially broken wires. Also, inspect the related connectors for broken, bent, pushed out, spread, corroded, or contaminated terminals. Repair as necessary.
      • Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Body Control (BCM) - Standard Procedure .
  2. CHECK ENGINE START/STOP SIGNAL SETTINGS 
    1. With the scan tool, Check Engine start/stop signal settings.

      Are the signal settings valid and the parameters set?

      Yes 

      No 

      • Go to step  3
  3. PROGRAMMABLE SPECIAL MODULE 
    1. Using the scan tool, perform Programmable Special Module (PSM) Reset ECU and Load Coding for vehicle application.
    2. Cycle the ignition on and off three times.
    3. Start the engine.
    4. Turn the engine off, leaving the ignition in the on position.
    5. With the scan tool, read DTCs.

      Does the scan tool display this DTC as active?

      Yes 

      No 

      • Test Complete.