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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 335 (Engine Controls - Self-Diagnostics - 3.0L) >> Diagnostic Tests >> DTC P0341: Camshaft Position Sensor Circuit Performance >> Test Procedures

Test Procedures

WARNING: This page is about a different car, the 2003 Saturn Vue. 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, go to DIAGNOSTIC SYSTEM CHECK - ENGINE CONTROLS .
    2. NOTE: If DTC P0342 or P0343 is set, diagnose affected DTCs first.
  2. Inspect all circuits going to the CMP sensor for circuit routed too close to secondary ignition wires or components, routed too close to after-market add-on electrical equipment, 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.
  3. Test for an intermittent and for a poor connection at the CMP sensor. Did you find and correct the condition? If yes, go to step  9. If no, go to next step.
  4. Test for an intermittent and for a poor connection at the ECM. Did you find and correct the condition? If yes, go to step  9. If no, go to next step.
  5. 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.
  6. Inspect the reluctor wheel for signs of damage or looseness. See DIAGNOSTIC AIDS . Did you find and correct the condition? If yes, go to step  9. If no, go to next step.
  7. Replace CMP sensor. After replacing sensor, go to step  9.
  8. Replace ECM. Perform ECM relearn procedures. See ENGINE CONTROL MODULE  under PROGRAMMING. After replacing ECM, go to next step.
  9. Clear the DTCs with a scan tool. Turn ignition off for 30 seconds. Start engine. Operate vehicle within the Conditions for Running the DTC. See CONDITIONS FOR RUNNING DTC . You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records. Does the DTC fail this ignition? If yes, go to step  2. If no, go to next step.
  10. Observe the Capture Info with a scan tool. Are there any DTC's that have not been diagnosed? If yes, go to DIAGNOSTIC TROUBLE CODE DEFINITIONS . If no, system is okay.
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