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DTC P1217 ENGINE OVER TEMPERATURE EC-531 C D E F G H I J K L M A EC 4. CHECK COOLING FAN MOTOR OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT 1. Disconnect ECM harness connector. 2. Check harness continuity between cooling fan relay-3 terminal 1 and ECM terminal 89. 3. Also check harness for short to ground and short to power. OK or NG OK >> GO TO 6. NG >> GO TO 5. 5. DETECT MALFUNCTIONING PART Check the following. ● Harness connectors E34, F34 ● Harness for open or short between cooling fan relay-2 and ECM >> Repair open circuit or short to ground or short to power in harness or connectors. 6. CHECK COOLING FAN RELAY-3 Refer to EC-532, "Component Inspection" OK or NG OK >> GO TO 7. NG >> Replace cooling fan relay. 7. CHECK COOLING FAN MOTOR-2 Refer to EC-532, "Component Inspection" OK or NG OK >> GO TO 8. NG >> Replace cooling fan motors. 8. CHECK INTERMITTENT INCIDENT Refer to EC-145, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" >> INSPECTION END Continuity should exist. |