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1F2 -- 72 M161 ENGINE CONTROLS DAEWOO MY_2000 COOLING FAN KAB1F290 Failure Code Description Trouble Area Maintenance Hint 44 Cooling fan (HI) relay short circuit to power Cooling fan short circuit to power D Inspection the Engine Control Module (ECM) pin 35 about short circuit or open with bad contact 45 Cooling fan (HI) relay short circuit to ground or open Cooling fan short circuit to ground or open open with bad contact D Inspection the power source D Inspection the cooling fan D Inspection the ECM Circuit Description Ignition voltage is supplied directly to the cooling fan relay coil. The ECM controls the relay by grounding the control circuit. When the ECM is commanding a command ON, the voltage of the control circuit should be low (near 0 volt). When the ECM is commanding the control circuit should be high (near battery voltage). If the fault detection circuit senses a voltage other than what is expected, the fault line status will change causing the fault code to set. |