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Home >> Chevrolet >> 2000 >> Tracker 4D Utility, RWD, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Self-Diagnostics >> Self-Diagnostic System >> Malfunction Indicator Light On Steady >> Diagnostic Procedures
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Diagnostic Procedures

  1. Perform On-Board Diagnostic (OBD) system check. See ON-BOARD DIAGNOSTIC SYSTEM CHECK . After performing OBD system check, go to next step.
  2. Turn ignition off. Disconnect PCM harness connectors. Turn ignition on, with engine off. If MIL illuminates, go to next step. If MIL does not illuminate, go to step  5.
  3. Check for a short to ground in MIL control circuit (Purple/Yellow wire) between instrument cluster and PCM. Repair as necessary. After repairs, go to step  6. If circuit is okay, go to next step.
  4. Check for a shorted instrument cluster printed circuit board. Repair or replace as necessary. After repairs, go to step  6.
  5. Replace PCM. Program replacement PCM using required equipment. After replacing PCM, go to next step.
  6. Turn ignition on, with engine off. Start engine and observe MIL. If MIL illuminates with ignition on and goes out when engine starts, system is okay. If MIL remains illuminated after engine starts, diagnose DTC(s). See DIAGNOSTIC TROUBLE CODE DEFINITIONS .
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