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Home >> Suzuki >> 2005 >> Aerio S, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Electrical Devices >> Repair Instructions >> Throttle Position (TP) Sensor On-Vehicle Inspection >> Using SUZUKI Scan Tool

Using SUZUKI Scan Tool

  1. Connect SUZUKI scan tool to DLC (1) with ignition switch OFF.
  2. Check "TP Sensor Volt" value displayed on scan tool under the following each condition.

    If measured value is out of specified range, check TP sensor. See DTC P0121: THROTTLE POSITION SENSOR CIRCUIT RANGE PERFORMANCE . If OK, check wire harness of TP sensor. Also check that "TP Sensor Volt" value varies according to throttle valve opening linearly. If not, it is possible that TP sensor has failed. Replace.

    Special tool 

    (A): SUZUKI scan tool 

    TP sensor voltage 

    When throttle is fully close: 0.70 +/- 0.15 V 

    When throttle is fully open: 4.0 + 0.5 V 

    Fig 1: Connecting SUZUKI Scan Tool To DLC
    G04013909Courtesy of SUZUKI OF AMERICA CORP.
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