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Home >> Lexus >> 2008 >> ES 350 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - System & Component Testing, Removal, Inspection & Installation >> Active Control Engine Mount System >> DTC P16A0 G Sensor Circuit >> Inspection Procedure
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Inspection Procedure

  1. READ VALUE OF TECHSTREAM (G SENS VOL (1X)) 
    1. Connect Techstream to DLC3.
    2. Start the engine and turn the tester on.
    3. Enter the following menus: Powertrain / E-ACM / Data List.
    4. Read the G Sensor Output Vol (1x) value.

      Standard Voltage: 

      The voltage changes within the range of 0.11 to 4.46 V. 

    NG:  Go to step  3

    OK: Go to next step. 

  2. READ VALUE OF TECHSTREAM (G SENSOR OUTPUT VOL (11X) AND G SENSOR STANDARD VOLTAGE) 
    1. Connect Techstream to DLC3.
    2. Start the engine and turn the tester ON.
    3. Enter the following menus: Powertrain / E-ACM / Data List.
    4. Read the G Sensor Output Vol (11x).

      Standard Voltage: 

      The voltage changes within the range of 0 to 5 V. 

    5. Read the G Sensor Standard Voltage value.

      Standard Voltage: 

      1.94 to 3.08 V 

    OK: REPLACE ACTIVE CONTROL ENGINE MOUNT ECU 

    NG: Go to next step. 

  3. CHECK HARNESS AND CONNECTOR (ACTIVE CONTROL ENGINE MOUNT ECU ACCELERATION SENSOR) 
    1. Disconnect the A9 E-ACM ECU connector and B11 acceleration sensor connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance 

      TESTER CONNECTION SPECIFIED CONDITION CHART

      Tester Connection Specified Value
      VGS (A9-24) - SGV (B11-1) Below 1 Ω
      GL1 (A9-19) - SGRR (B11-3) Below 1 Ω
      GGND (A9-26) - SGND (B11-2) Below 1 Ω
      Fig 1: Identifying Terminals Of A9 E-ACM ECU And B11 Acceleration Sensor Connectors
      G05247899Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: Go to next step. 

  4. CHECK POWER SOURCE CIRCUIT (ACCELERATION SENSOR) 
    1. Disconnect the B11 acceleration sensor connector.
    2. Measure the voltage according to the value(s) in the table below.

      Standard Voltage 

      TESTER CONNECTION SPECIFIED CONDITION CHART

      Tester Connection Specified Value
      SGV (B11-1) - SGND (B11-2) 4.5 to 5.2 V
      Fig 2: Identifying Terminals Of B11 Acceleration Sensor Connector
      G05247900Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPLACE ACTIVE CONTROL ENGINE MOUNT ECU 

    OK: REPLACE ACCELERATION SENSOR