СИСТЕМА БЕССТУПЕНЧАТОЙ ТРАНСМИССИИ, Diagnostic DTC:P1585

DTC Code DTC Name
P1585 Acceleration Sensor Circuit

DESCRIPTION

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

Tech Tips


  • The airbag ECU assembly (yaw rate and acceleration sensor) signal is sent to the brake actuator assembly (skid control ECU) 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 airbag ECU assembly (yaw rate and acceleration sensor) 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 airbag ECU assembly (yaw rate and acceleration sensor) power source voltage is 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 airbag ECU assembly (yaw rate and acceleration sensor) 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. An airbag ECU assembly (yaw rate and acceleration sensor) 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

  • Airbag ECU assembly (Yaw rate and acceleration sensor)

  • Brake actuator assembly (Skid control ECU)

  • CAN communication system

 Does not come on DTC stored

WIRING DIAGRAM

B006MK4E33
*1 Brake Actuator Assembly (Skid Control ECU)
*2 to CAN Communication System
*3 Airbag ECU Assembly (Yaw Rate and Acceleration Sensor)
*4 CAN Communication Line

CAUTION / NOTICE / HINT

Note


  • Perform initialization after replacing any parts related to the continuously variable transaxle system.

    Click here

  • Check that no DTCs are stored after performing initialization.

    Click here

Tech Tips

After performing repair, clear the DTCs and perform the following procedure to check that DTCs are not output.


  1. Turn the engine switch (IG) on and wait for 60 seconds or more.

  2. Perform the D position test in Road Test.

    Click here

  3. Check for DTCs again.

    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 > Trouble Codes
      Result
      Result Proceed to
      DTC U0129 is not output A
      DTC U0129 is output B

    B

    GO TO CAN COMMUNICATION SYSTEM 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.

    5. According to the display on the GTS, read the Data List.


      Powertrain > Engine > 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

      • 2.31 to 2.69 V: Vehicle on level ground

      • 1.88 to 2.5 V: Decelerating

      • 2.5 to 3.11 V: Accelerating

      • Stuck at 1.87 V: G sensor malfunction

      • Stuck at 1.87 V: Communication malfunction

      		 -

      Powertrain > Engine > Data List
      Tester Display
      G Sensor
      Result
      Result Proceed to
      Data List value is not normal A
      Data List value is normal B

    B

    REPLACE BRAKE ACTUATOR ASSEMBLY Click here

    A

  3. REPLACE AIRBAG ECU ASSEMBLY


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

      w/o Navigation System: Click here

      w/ Navigation System: Click here

      Result
      Proceed to
      NEXT

    NEXT

    PERFORM INITIALIZATION Click here