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Home >> Chevrolet >> 2000 >> Metro Base, 2D Hatchback >> Repair and Diagnosis (Single Page) >> Engine Mechanical >> Cooling Fan >> Engine Cooling Fan System - Troubleshooting >> Electric Cooling Fan Circuit Diagnosis >> 1.8L PRIZM >> Auxiliary Cooling Fan Inoperative

Auxiliary Cooling Fan Inoperative

  1. Review DESCRIPTION , and then go to next step.
  2. Run engine until operating temperature is reached and thermostat opens. If cooling fans operate, problem is intermittent. If cooling fans do not operate, go to next step.
  3. Stop engine. Disconnect auxiliary fan motor connector. Connect test light across auxiliary fan motor connector. Start engine. If test light illuminates, go to step  7. If test light does not illuminate, go to next step.
  4. Check auxiliary fan motor supply voltage circuit (Blue/Red wire) for open. If problem was found, repair as necessary. After repairs, go to step  9. If problem was not found, go to next step.
  5. Remove fan 2 relay from fuse and relay block 2. Check White wire between auxiliary fan motor and fan 2 relay for open. If problem was found, repair as necessary. After repairs, go to step  9. If problem was not found, go to next step.
  6. Replace fan 2 relay. After repairs, go to step  9.
  7. Check auxiliary fan motor connector for poor connections. If problem was found, repair as necessary. After repairs, go to step  9. If problem was not found, go to next step.
  8. Replace auxiliary fan motor. After repairs, go to next step.
  9. Operate system to verify repair.
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