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DTC P0117, P0118 ECT SENSOR EC-217 [VQ35DE] C D E F G H I J K L M A EC Diagnostic Procedure NBS004VG 1. CHECK GROUND CONNECTIONS 1. Turn ignition switch OFF. 2. Loosen and retighten two ground screws on the body. OK or NG OK >> GO TO 2. NG >> Repair or replace ground connections. 2. CHECK ECT SENSOR POWER SUPPLY CIRCUIT 1. Disconnect engine coolant temperature (ECT) sensor harness 2. Turn ignition switch ON. 3. Check voltage between ECT sensor terminal 1 and ground with OK or NG OK >> GO TO 3. NG >> Repair open circuit or short to ground or short to power in harness or connectors. 1. Body ground M70 2. Body ground M16 PBIB2782E PBIB1563E Voltage: Approximately 5V PBIB0080E |