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Home >> Pontiac >> 2001 >> Aztek Base, FWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls Self-Diagnostics >> Diagnostic Tests >> DTC P0341: Camshaft Position Sensor Circuit >> Diagnostic Procedures
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Diagnostic Procedures

  1. Perform powertrain diagnostic system check. See POWERTRAIN DIAGNOSTIC SYSTEM CHECK  under SELF-DIAGNOSTIC SYSTEM. After performing diagnostic system check, go to next step.
  2. Using scan tool, monitor CMP sensor input signal in Engine Data List 2. If scan tool indicates that CMP sensor signal is present, go to next step. If CMP sensor signal is not present, go to step  4.
  3. Observe FREEZE FRAME/FAILURE RECORDS data. Turn ignition off for 30 seconds. Operate vehicle within the conditions for running this DTC or as close to FREEZE FRAME/FAILURE RECORDS data observed. See CODE ENABLE CRITERIA . If DTC resets, go to next step. If DTC does not reset, see DIAGNOSTIC AIDS .
  4. Turn ignition off. Disconnect CMP sensor harness connector. Turn ignition on, with engine off. Check voltage between chassis ground and CMP sensor harness connector terminal "A" (Red/White wire). See Figure. If voltage reading is about battery voltage, go to step  6. If voltage reading is not about battery voltage, go to next step.
  5. Turn ignition off. Disconnect PCM harness connector C2. Check for short to ground or open in Red/White wire between CMP sensor harness connector terminal "A" and PCM harness connector C2 terminal No. 72. See Figure. Repair as necessary. After repairs, go to step  16. If circuit is okay, go to step  12.
  6. Connect a test light to battery positive voltage. Touch test light to CMP sensor harness connector terminal "C" (Black wire). If test light illuminates, go to step  8. If test light does not illuminate, go to next step.
  7. Turn ignition off. Disconnect PCM harness connector C2. Check for open in Black wire between CMP sensor harness connector terminal "C" and PCM harness connector C2 terminal No. 73. Repair as necessary. After repairs, go to step  16. If circuit is okay, go to step  12.
  8. Using scan tool, monitor cam signal. Connect a fused jumper wire to battery voltage and momentarily touch CMP sensor harness connector terminal "B" (Black wire) 5 times for a duration of one second each. If cam signal changes each time the signal circuit is touched, go to step  14. If cam signal does not changes each time signal circuit is touched, go to next step.
  9. Check fuse in jumper wire. If fuse is open, go to step  11. If fuse is okay, go to next step.
  10. Turn ignition off. Check for short to voltage or open in Black wire between CMP sensor harness connector terminal "B" and PCM harness connector C1 terminal No. 7. Repair as necessary. After repairs, go to step  16. If circuit is okay, go to step  12.
  11. Turn ignition off. Check for short to ground in Black wire between CMP sensor harness connector terminal "B" and PCM harness connector C1 terminal No. 7. Repair as necessary. After repairs, go to step  16. If circuit is okay, go to next step.
  12. Turn ignition off. Check for poor connections at PCM harness connector. Repair as necessary. After repairs, go to step  16. If connections are okay, go to next step.
  13. Replace PCM. Perform PCM relearn procedure. See POWERTRAIN CONTROL MODULE  under PROGRAMMING. After replacing PCM, go to step  16.
  14. Turn ignition off. Check for poor connections at CMP sensor. Repair as necessary. After repairs, go to step  16. If connections are okay, go to next step.
  15. Replace CMP sensor. After repairs, go to next step.
  16. Turn ignition on, with engine off. Using scan tool, clear DTCs. Turn ignition off for 30 seconds. Operate vehicle within the conditions for running this DTC. See CODE ENABLE CRITERIA . If DTC runs and passes, go to next step. If DTC resets, go to step  2.
  17. Using scan tool, review the stored information and CAPTURE INFO. If scan tool displays any undiagnosed DTCs, diagnose affected DTCs. See DIAGNOSTIC TROUBLE CODE DEFINITIONS . If no DTCs are displayed, system is okay.
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