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Home >> Isuzu >> 2000 >> Rodeo LSE, 2.2 D >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Controls - Self-Diagnostics - 2.2L >> Diagnostic Trouble Code Identification >> DTC P0342: Camshaft Position Sensor Circuit Input >> Diagnostic Procedures
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Diagnostic Procedures

  1. Perform On-Board Diagnostic II (OBD-II) system check. See SELF-DIAGNOSTICS - INTRODUCTION article. Go to next step.
  2. Turn ignition on. Using scan tool, read and record FAILURE RECORDS data for DTC P0342. Operate vehicle within conditions noted in FAILURE RECORDS data. Using scan tool, read specified DTC. If scan tool displays DTC P0342 FAILED THIS IGN, go to next step. If scan tool does not display DTC P0342 FAILED THIS IGN, see DIAGNOSTIC AIDS .
  3. Using DVOM, backprobe PCM connector at CMP signal circuit. With sensor connected, crank engine and monitor DVOM. If reading toggles from 0 to 4 volts, go to next step. If reading does not toggle as described, go to step  8.
  4. Check for poor connection on CMP signal wire at PCM terminal D11. If a problem is found, go to next step. If no problem was found, go to next step.
  5. Repair CMP signal wire at PCM as necessary. Retest system.
  6. Replace and reprogram PCM using required equipment. See PROGRAMMING . Retest system.
  7. Disconnect CMP sensor. Turn ignition on. Measure voltage at CMP sensor harness connector between sensor feed circuit and sensor ground circuit. If voltage is about battery voltage, go to step  12. If voltage is not as specified, go to next step.
  8. Measure voltage of CMP sensor feed circuit between CMP sensor harness connector and ground. If reading is around battery voltage, go to step  10. If reading is not as specified, go to next step.
  9. Repair open between PCM main relay and CMP sensor. Retest system.
  10. Measure voltage between battery positive terminal and CMP sensor harness connector ground wire. If reading is about battery voltage, go to step  12. If reading is not as specified, go to next step.
  11. Repair open ground circuit. Retest system.
  12. Turn ignition off. Using DVOM, check continuity of signal wire between CMP sensor and PCM. If continuity does not exist, go to next step. If continuity exists, go to step  14.
  13. Repair open circuit in signal wire. Retest system.
  14. Turn ignition on. Check signal wire for short to ground or voltage. If problem is found, repair as necessary. Retest system. If no problem is found, replace CMP sensor.
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