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DTC P16A0: G Sensor Circuit: Procedure

  1. READ VALUE USING 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 → See step   3 

    OK: Go to next step 

  2. READ VALUE USING 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.
      Fig 1: Identifying A9 E-ACM ECU Connector & B11 Acceleration Sensor Connector Terminal
      GTY147305Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance according to the value(s) in the table below.

      Standard resistance

      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

    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.
      Fig 2: Identifying B11 Acceleration Sensor Connector Terminal
      GTY147302Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the voltage according to the value(s) in the table below.

      Standard voltage

      Tester Connection Specified Value
      SGV (B11-1) - SGND (B11-2) 4.5 to 5.2 V

    NG → REPLACE ACTIVE CONTROL ENGINE MOUNT ECU 

    OK → REPLACE ACCELERATION SENSOR 

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