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Home >> Saturn >> 2002 >> Vue 3.0 B >> Repair and Diagnosis >> Electrical >> Charging Systems >> System Tests >> Test B: Charge Indicator Always On >> Diagnostic Procedures

Diagnostic Procedures

  1. Did you perform the Engine Electrical Diagnostic System Check? If yes, go to next step. If no, go to DIAGNOSTIC SYSTEM CHECK - ENGINE ELECTRICAL  .
  2. Start engine. Turn Off all accessories. Does the battery charge indicator remain illuminated? If yes, go to next step. If no, problem is intermittent.
  3. Install scan tool. With scan tool, observe the Battery 1 parameter in the BCM data list. Does the voltage measure within 12.6-16.0 volts? If yes, go to next step. If no, go to TEST A: CHARGING SYSTEM TEST  .
  4. With scan tool, observe the Battery 1 parameter in the ECM data list. Does the voltage measure within 12.6-16.0 volts? If yes, go to next step. If no, go to TEST A: CHARGING SYSTEM TEST  .
  5. With scan tool, command the lamp and gauges On and Off. Does the charge indicator turn On and Off with each command? If yes, go to next step. If no, go to step  7 .
  6. Replace ECM. See appropriate REMOVAL & INSTALLATION article in ENGINE PERFORMANCE. Program ECM. After replacing ECM, go to step  8 .
  7. Replace instrument panel cluster. After replacing instrument cluster, go to next step.
  8. Operate the system in order to verify the repair. Did you correct the condition? If yes, system is okay. If no, go to step  2 .
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