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Home >> Infiniti >> 2003 >> FX35 RWD >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> DTC P0117: Engine Coolant Temperature Sensor Circuit Low Input & DTC P0118: Engine Coolant Temperature Sensor Circuit High Input >> Diagnostic Procedure
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Diagnostic Procedure

CAUTION: DO NOT use ECM ground terminals when measuring input/output voltage. Doing so may result in damage to the ECM's transistor. Use a ground other than the ECM terminals.

For DTC P0117 and P0118 diagnostic procedure, see Fig 1 and Fig 2 .

Fig 1: Identifying ECT Sensor Related Circuits & Connectors
G00274571Courtesy of NISSAN MOTOR CO., U.S.A.
Fig 2: DTCs P0117 & P0118 Diagnostic Procedure
G00265961Courtesy of NISSAN MOTOR CO., U.S.A.
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