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Home >> Chevrolet >> 2000 >> Prizm Base, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls Self-Diagnostics - 1.8L >> Self-Diagnostic System >> Mil On Steady >> Diagnostic Procedures
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Diagnostic Procedures

  1. Perform On-Board Diagnostic (OBD) system check. See ON-BOARD DIAGNOSTIC (OBD) SYSTEM CHECK  . After performing OBD system check, go to next step.
  2. Turn ignition off. Disconnect PCM 22-pin connector. Turn ignition on, with engine off. If MIL illuminates, go to next step. If MIL does not illuminate, go to step  4 .
  3. Repair short to ground in MIL control circuit between instrument cluster and PCM. After repairs, go to step  5 .
  4. Replace PCM. Program replacement PCM using required equipment. After replacing PCM, go to next step.
  5. Start engine and observe MIL. If MIL illuminates for about 3 seconds, and then turns off, system is okay. If MIL remains illuminated, diagnose affected DTC(s).
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