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Home >> Nissan-Datsun >> 2004 >> Frontier Base, Standard >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 3 (Engine Control System - VG33E) >> DTC P0121: TP Sensor >> Component Inspection
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Component Inspection

WARNING: This page is about a different variant/trim than selected.

THROTTLE POSITION SENSOR 

With CONSULT-II 

  1. Start engine and warm it up to normal operating temperature.
  2. Stop engine (ignition switch OFF).
  3. Turn ignition switch ON.
  4. Select "DATA MONITOR" mode with CONSULT-II.
  5. Check voltage of "THRTL POS SEN" under the following conditions.

    Voltage measurement must be made with throttle position sensor installed in vehicle. 

Fig 1: Reference Data
G00742742Courtesy of NISSAN MOTOR CO., U.S.A.
Fig 2: Reading "THRTL POS SEN" In "DATA MONITOR" Mode
G00742743Courtesy of NISSAN MOTOR CO., U.S.A.

With GST 

  1. Start engine and warm it up to normal operating temperature.
  2. Stop engine (ignition switch OFF).
  3. Turn ignition switch ON.
  4. Check voltage between ECM terminal 23 (Throttle position sensor signal) and engine ground.

    Voltage measurement must be made with throttle position sensor installed in vehicle. 

    Fig 3: Reference Data
    G00742744Courtesy of NISSAN MOTOR CO., U.S.A.