CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM, Diagnostic DTC:P1585

DTC Code DTC Name
P1585 Acceleration Sensor Circuit

DESCRIPTION

The ECM determines the vehicle inclination based on a signal from the yaw rate and acceleration sensor to perform neutral control. If a malfunction is determined in the yaw rate and acceleration sensor based on a malfunction signal from the brake actuator assembly, the ECM cancels neutral control as a fail-safe function.

Tech Tips


  • The ECM receives a yaw rate and acceleration sensor signal from the brake actuator assembly via CAN communication.

  • If a CAN communication DTC is output, perform troubleshooting for that DTC first.

DTC No.

DTC Detection Condition


  1. Diagnosis Condition

  2. Malfunction Status

  3. Malfunction Time

  4. Other

 Trouble Area
P1585

  1. Ignition switch ON

  2. Output value of the yaw rate and acceleration sensor (G sensor) remains at -1.5 G or less or 1.5 G or more for at least 1.2 seconds.

  3. 3.0 seconds

  4. 1-trip detection logic

  • Yaw rate and acceleration sensor

  • Brake actuator assembly

    (Skid control ECU)

  • CAN communication system

  1. Ignition switch ON

  2. Battery voltage to the yaw rate and acceleration sensor (G sensor) remains at 4.4 V or less or 5.6 V or more for at least 1.2 seconds.

  3. 3.0 seconds

  4. 1-trip detection logic

  1. Ignition switch ON

  2. No signal from the yaw rate and acceleration sensor (G sensor) is repeated 7 times or more.

  3. 3.0 seconds

  4. 1-trip detection logic

  1. Ignition switch ON

  2. With the vehicle stopped, the difference between GL1 and GL2 does not become less than 0.4 G within 60 seconds after exceeding 0.6 G.

  3. 3.0 seconds

  4. 1-trip detection logic

  1. Ignition switch ON

  2. A yaw rate and acceleration sensor (G sensor) power source voltage malfunction signal is received for at least 10 seconds with the vehicle speed 3 km/h (1.8 mph) or more.

  3. 3.0 seconds

  4. 1-trip detection logic

WIRING DIAGRAM

A011BQEE02

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK DTC OUTPUT (CAN COMMUNICATION SYSTEM)


    1. Check for DTCs of the CAN communication system Click here.

      Result
      Result Proceed to
      DTCs are not output A
      DTCs are output B

    B

    GO TO CAN COMMUNICATION SYSTEM Click here

    A

  2. READ VALUE USING INTELLIGENT TESTER (G SENSOR)


    1. Connect the intelligent tester to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the tester on.

    4. Enter the following menus: Powertrain / Engine and ECT / Data List.

    5. In accordance with the display on the tester, read the Data List.

      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      G sensor

      Converted output voltage of yaw rate and acceleration sensor/

      min.: 0 V

      max.: 5 V

      Displays converted voltage of yaw rate and acceleration sensor


      • Vehicle on level ground: 2.31 V to 2.69 V

      • Decelerating: 1.88 V to (2.5) V

      • Accelerating: (2.5) V to 3.11 V

      • G sensor malfunction: set to 1.87 V

      • Communication malfunction: set to 1.87 V

      		 -
      Result
      Result Proceed to
      Data display is not within Normal Condition range A
      Data display is within Normal Condition range B

    B

    REPLACE BRAKE ACTUATOR ASSEMBLY Click here

    A

  3. REPLACE YAW RATE AND ACCELERATION SENSOR


    1. Replace yaw rate and acceleration sensor Click here.


    NEXT

  4. PERFORM INITIALIZATION


    1. Perform the initialization Click here.

    2. Check for DTCs again Click here.


    NEXT

    END