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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 transistor. Use a ground other than the ECM terminals.

For DTC P0112 and P0113 diagnostic procedure, related circuits and connectors, see Fig 1 and Fig 2 .

Fig 1: Identifying IAT Sensor Related Circuits & Connectors

Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 2: DTCs P0112 & P0113 Diagnostic Procedure

Courtesy of NISSAN DIESEL MOTOR CO., LTD.