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 (airbag ECU assembly). If a malfunction in the yaw rate and acceleration sensor (airbag ECU assembly) is determined based on a malfunction signal from the skid control ECU (brake actuator assembly), the ECM stores this DTC.

Tech Tips


  • The yaw rate and acceleration sensor (airbag ECU assembly) signal is sent to the skid control ECU (brake actuator assembly) via CAN communication.

  • If CAN communication DTCs are output, perform troubleshooting for those DTCs first.

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory
P1585 Acceleration Sensor Circuit

1. Diagnosis Condition 2. Malfunction Status 3. Malfunction Time 4. Other

DTC Detection Condition 1:


  1. The engine switch is on (IG).

  2. The output value of the yaw rate and acceleration sensor (airbag ECU assembly) remains at -1.5 G or less, or 1.5 G or more for at least 1.2 seconds.

  3. 0.5 seconds or more

  4. 1-trip detection logic

DTC Detection Condition 2:


  1. The engine switch is on (IG).

  2. The power source voltage to the yaw rate and acceleration sensor (airbag ECU assembly) remains at 4.4 V or less, or 5.6 V or higher for 1.2 seconds or more.

  3. 0.5 seconds or more

  4. 1-trip detection logic

DTC Detection Condition 3:


  1. The engine switch is on (IG).

  2. No signal from the yaw rate and acceleration sensor (airbag ECU assembly) is detected 7 times or more.

  3. 0.5 seconds or more

  4. 1-trip detection logic

DTC Detection Condition 4:


  1. The engine switch is on (IG).

  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. 0.5 seconds or more

  4. 1-trip detection logic

DTC Detection Condition 5:


  1. The engine switch is on (IG).

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

  3. 0.5 seconds or more

  4. 1-trip detection logic

  • Yaw rate and acceleration sensor (Airbag ECU assembly)

  • Skid control ECU (Brake actuator assembly)

  • CAN communication system

 Does not come on DTC stored

WIRING DIAGRAM

B008HTOE30
*1 Skid Control ECU (Brake Actuator Assembly)
*2 to CAN Communication System
*3 Yaw Rate and Acceleration Sensor (Airbag ECU Assembly)
*4 CAN Communication Line

CAUTION / NOTICE / HINT

Note


  • Perform initialization when parts related to the continuously variable transaxle are replaced.

    Click here

  • Check that no DTCs are stored after performing initialization.

    Click here

PROCEDURE


  1. CHECK DTC OUTPUT


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Check for DTCs.


      Powertrain > Engine and ECT > Trouble Codes
      Result
      Result Proceed to
      DTC U0129 is not output A
      DTC U0129 is output B

    B

    GO TO CAN COMMUNICATION SYSTEM for LHD: Click here for RHD: Click here

    A

  2. READ VALUE USING GTS (G SENSOR)


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

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

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


      Powertrain > Engine and ECT > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      G Sensor Converted output voltage of G sensor

      Min.: 0 V

      Max.: 79.998 V

      Displays converted voltage of G sensor


      • 2.31 V to 2.69 V: Vehicle on level ground

      • 1.88 V to 2.5 V: Decelerating

      • 2.5 V to 3.11 V: Accelerating

      • Set to 1.87 V: G sensor malfunction

      • Set to 1.87 V: Communication malfunction

      		 -

      Powertrain > Engine and ECT > Data List
      Tester Display
      G Sensor
      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 AIRBAG ECU ASSEMBLY


    1. Replace the yaw rate and acceleration sensor (airbag ECU assembly).

      Click here

      Result
      Proceed to
      NEXT

    NEXT

    PERFORM INITIALIZATION Click here