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 P0122 and P0123 diagnostic procedure, related circuits and connectors, see Fig 1-Fig 4 .

Fig 1: Identifying Throttle Position Sensor Related Circuits & Connectors

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Fig 2: Identifying Throttle Position Sensor Circuit Specification Data

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Fig 3: DTCs P0122 & P0123 Diagnostic Procedure (1 Of 2)

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Fig 4: DTC P0122 & P0123 Diagnostic Procedure (2 Of 2)

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