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Home >> Acura >> 2009 >> MDX V6-3.7L >> Repair and Diagnosis >> Engine, Cooling and Exhaust >> Cooling System >> Testing and Inspection >> Symptom Related Diagnostic Procedures >> Radiator Fan Runs High Speed With Ignition Switch In ON, A/C Off, Engine Coolant Temp Below 205 F (95 C)

Radiator Fan Runs High Speed With Ignition Switch In ON, A/C Off, Engine Coolant Temp Below 205 F (95 C)




The radiator fan runs at high speed with the ignition switch in ON (II), the A/C off, and the engine coolant temperature below 204 �F (95 �C)

Diagnostic Procedure:

Check for a short in the wire between radiator fan relay 4P socket terminal No. 3 and PCM connector terminal A5.

Also check for:

- Cleanliness and tightness of all connectors