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DIESEL CONTROL SYSTEM FLA -415 1) IG KEY "ON", ENGINE "OFF". 2) Disconnect PTC heater relay #1. 3) IG KEY "ON". 4) Measure the voltage of PTC heater relay #1connector terminal 1. Specification : 8.0V~10.0V 5) Is the measured voltage within the specification? YES ▶ Go to "Component Inspection". NO ▶ When no value is detected : Go to "2. Check open in control circuit". 2. Check open in control circuit 1) IG KEY "OFF", ENGINE "OFF". 2) Disconnect PTC heater relay #1 and ECM connector. 3) Check continuity between PTC heater relay #1 connector terminal 1 and ECM connector terminal 94. specification : Continuity ( below 1.0Ω ) 4) Is the measured resistance within the specification? YES ▶ Repair short to ground and go to "Verification of Vehicle Repair". NO ▶ Repair open in signal circuit and go to "Verification of Vehicle Repair". COMPONENT INSPECTION EDF97812 1. Check PTC heater relay #1 component coil resistance 1) IG KEY "OFF", ENGINE "OFF". 2) Disconnect PTC heater relay #1. 3) Measure the resistance of PTC heater relay #1 component coil. Specification : 52±5 Ω (20℃) |