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Multiple Pcm Information Sensor DTCS Set: VehiCROSS

WARNING: This page is about a different car, the 2000 Isuzu VehiCROSS, 2000 Isuzu Trooper, 2000 Isuzu Rodeo, 2000 Isuzu Amigo, and 2000 Honda Passport. However, it is still accessible from the selected car via links, so may be relevant.
  1. Perform On-Board Diagnostic II (OBD-II) System Check. See ON-BOARD DIAGNOSTIC II (OBD-II) SYSTEM CHECK in SELF-DIAGNOSTICS - INTRODUCTION article. After performing OBD-II system check, go to next step.
  2. Turn ignition off. Disconnect PCM electrical connectors. Turn ignition on. Check for poor connections, open or short in 5-volt reference circuit for affected sensors. See appropriate wiring diagram in SYSTEM WIRING DIAGRAMS article. If problem is found, go to next step. If circuits are okay, go to step  4.
  3. Repair as necessary. Verify system is operating properly.
  4. Check for poor connections or open in ground circuits of affected sensors. If problem is found, go to next step. If connections and circuits are okay, go to step  6.
  5. Repair faulty ground circuits as necessary. Verify system is operating properly.
  6. Using DVOM, check voltage between ground and EGR pintle position sensor signal circuit at PCM connector. See appropriate wiring diagram in SYSTEM WIRING DIAGRAMS article. If no voltage exists, go to next step. If voltage exists, go to step  12.
  7. Using DVOM, check voltage between ground and MAP sensor signal circuit at PCM harness connector. If no voltage exists, go to next step. If voltage exists, go to step  15.
  8. Using DVOM, check voltage between ground and TP sensor signal circuit at PCM harness connector. If no voltage exists, go to next step. If voltage exists, go to step  16.
  9. Using DVOM, check voltage between ground and IAT sensor signal circuit at PCM harness connector. See appropriate wiring diagram in SYSTEM WIRING DIAGRAMS article. If no voltage exists, go to next step. If voltage exists, go to step  17.
  10. Using DVOM, check voltage between ground and ECT sensor signal circuit at PCM harness connector. If no voltage exists, go to next step. If voltage exists, go to step  18.
  11. Disconnect EGR valve. Using DVOM, check voltage between ground and EGR pintle position sensor signal circuit at PCM harness connector. If no voltage exists, go to step  13. If voltage exists, go to step  18.
  12. Using DVOM, check voltage between ground and TFT sensor signal circuit at PCM harness connector. See appropriate wiring diagram in SYSTEM WIRING DIAGRAMS article. If no voltage is present, go to step  20. If voltage is present, go to step  19.
    NOTE: TFT sensor may also be referred to as A/T oil temperature sensor.
  13. Replace EGR valve. Verify system is operating properly.
  14. Repair short circuit to voltage between PCM harness connector and MAP sensor. Retest system.
  15. Repair short circuit to voltage between PCM harness connector and TP sensor. Retest system.
  16. Repair short circuit to voltage between PCM harness connector and IAT sensor. Retest system.
  17. Repair short circuit to voltage between PCM harness connector and ECT sensor. Retest system.
  18. Repair short circuit to voltage between PCM harness connector and EGR-PS sensor. Retest system.
  19. Repair short circuit to voltage between PCM harness connector and sensor TFT sensor. Retest system.
  20. Replace and reprogram PCM. See PROGRAMMING . Repeat OBD-II system check. See ON-BOARD DIAGNOSTIC II (OBD-II) SYSTEM CHECK in SELF-DIAGNOSTICS - INTRODUCTION article.
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