LEMON Manuals: Even more car manuals for everyone
Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 92 (Engine Controls - Self-Diagnostics - 6.6L Diesel) >> Diagnostic Tests >> DTC P0341: Camshaft Position Sensor Circuit Performance >> Diagnostic Procedures

Diagnostic Procedures

WARNING: This page is about a different car, the 2002 GMC Sierra, 2002 GMC Cab & Chassis Sierra, 2002 Chevrolet Silverado, and 2002 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Did you perform the Diagnostic System Check-Engine Controls? If yes, go to next step. If no, see DIAGNOSTIC SYSTEM CHECK - ENGINE CONTROLS  under SELF-DIAGNOSTIC SYSTEM.
  2. Observe the Freeze Frame/Failure Records data for this DTC. Turn OFF the ignition for 30 seconds. Start the engine. Operate the vehicle within the Conditions for Running DTC or as closely as possible to the Freeze Frame/Failure Records conditions. Does the DTC fail this ignition cycle? If yes, go to next step. If no, see DIAGNOSTIC AIDS .
  3. Visually and physically inspect all circuits going to the CMP sensor for the following:
    • Being routed too close to secondary ignition wires or components.
    • Being routed too close to after-market add-on electrical equipment.
    • Being routed too close to solenoids, relays, and motors.

    If you find incorrect routing, correct the harness routing. Did you find and correct the condition? If yes, go to step  9. If no, go to next step.

  4. Inspect for poor connections at the CMP sensor. If you find a poor connection, repair the terminal as necessary. Did you find and correct the condition? If yes, go to step  9. If no, go to next step.
  5. Inspect for poor connections at the ECM for the CMP sensor circuits. If you find a poor connection, repair the terminal as necessary. Did you find and correct the condition? If yes, go to step  9. If no, go to next step.
  6. Remove the CMP sensor. Inspect the CMP sensor for signs of damage. Did you find and correct the condition? If yes, go to step  9. If no, go to next step.
  7. Inspect the CMP reluctor wheel for damage. If the CMP reluctor wheel is damaged, repair as necessary. See appropriate article in ENGINES. Did you find and correct the condition? If yes, go to step  9. If no, go to next step.
  8. Replace the CMP sensor. See appropriate REMOVAL, OVERHAUL & INSTALLATION article. After repairs, go to next step.
  9. Clear the DTCs with a scan tool. Turn OFF the ignition for 30 seconds. Start the engine. Operate the vehicle within the Conditions for Running DTC. Does the DTC run and pass? If yes, go to next step. If no, go to step  2.
  10. Observe the stored information, Capture Info with a scan tool. Does the scan tool display any DTCs that you have not diagnosed? If yes, see DIAGNOSTIC TROUBLE CODE DEFINITIONS . If no, system is okay.
scientia non olet · About LEMON Manuals