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Home >> Chevrolet >> 2000 >> Tracker 4D Utility, RWD, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Self-Diagnostics >> Diagnostic Tests >> DTC P0340: Camshaft Position Sensor Circuit >> Diagnostic Procedures

Diagnostic Procedures

  1. Perform On-Board Diagnostic (OBD) system check. See ON-BOARD DIAGNOSTIC SYSTEM CHECK  under SELF-DIAGNOSTIC SYSTEM. After performing OBD system check, go to next step.
  2. Turn ignition on, with engine off. Using scan tool, perform clear information function. Operate vehicle within FREEZE FRAME conditions. Retrieve DTCs. If this DTC resets, go to next step. If this DTC does not reset, see DIAGNOSTIC AIDS .
  3. Turn ignition off. Disconnect CMP sensor harness connector. Turn ignition on, with engine off. Using DVOM, check voltage between ground and CMP sensor harness connector terminal No. 1 (ignition feed circuit). If battery voltage is present, go to next step. If battery voltage is not present, go to step  7.
  4. Using a test light connected to battery voltage, probe CMP sensor harness connector terminal No. 3 (ground circuit). If test light illuminates, go to next step. If test light does not illuminate, go to step  8.
  5. Using DVOM, check voltage at CMP sensor harness connector terminal No. 2 (signal circuit). If voltage reading is 5 volts, go to next step. If voltage reading is not 5 volts, go to step  9.
  6. Check for poor connections at PCM and CMP sensor. Check if DTC P1500 is set. Repair as necessary. After repairs, go to step  13. If connections are okay and DTC P1500 is not set, go to step  10.
  7. Repair open in CMP sensor ignition feed circuit between main relay and CMP sensor. After repairs, go to step  13.
  8. Check for an open in CMP ground circuit between ground (right rear of intake manifold) and CMP sensor. Check for faulty ground connection. Repair as necessary. After repair, go to step  13. If circuit and connection are okay, go to step  12.
  9. Check for an open in CMP sensor signal circuit between CMP sensor and PCM. Repair as necessary. After repairs, go to step  13. If circuit is okay, go to step  12.
  10. Remove CMP sensor and housing. Check for CMP sensor signal rotor not rotating, signal rotor missing teeth or damaged teeth, and foreign material on CMP sensor. Repair as necessary. After repairs, go to step  13. If CMP sensor is okay, go to next step.
  11. Replace CKP sensor. After replacing sensor, go to step  13.
  12. Replace PCM. Program replacement PCM using required equipment. After replacing PCM, go to next step.
  13. After repairs, clear DTCs. Operate vehicle within FREEZE FRAME conditions that set DTC. Check for DTCs. If no DTCs are stored, repair is complete. If any DTCs are stored, diagnose DTC(s).
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