CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM(for 1ZR-FAE), 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 sensor assembly (yaw rate and acceleration sensor). If a malfunction of the airbag sensor 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.

Tip:

  • The airbag sensor 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

  1. DTC Detection Condition 1

  2. The ignition switch is ON.

  3. The output value of the airbag sensor 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.

  4. 0.5 seconds or more

  5. 1-trip detection logic

  1. DTC Detection Condition 2

  2. The ignition switch is ON.

  3. The airbag sensor 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.

  4. 0.5 seconds or more

  5. 1-trip detection logic

  1. DTC Detection Condition 3

  2. The ignition switch is ON.

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

  4. 0.5 seconds or more

  5. 1-trip detection logic

  1. DTC Detection Condition 4

  2. The ignition switch is ON.

  3. 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.

  4. 0.5 seconds or more

  5. 1-trip detection logic

  1. DTC Detection Condition 5

  2. The ignition switch is ON.

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

  4. 0.5 seconds or more

  5. 1-trip detection logic

  • Airbag sensor assembly (Yaw rate and acceleration sensor)

  • Brake actuator assembly (Skid control ECU)

  • CAN communication system

Does not come on

DTC stored

WIRING DIAGRAM

C264292E43

CAUTION / NOTICE / HINT

Tip:

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

  1. Turn the ignition switch to 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 ignition switch to ON.

    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

    Click here

    A

  2. READ VALUE USING GTS (G SENSOR)

    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    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 and ECT > Data List

      Tester Display

      Measurement Item

      Range

      Normal Condition

      Diagnostic Note

      G Sensor

      Converted output voltage of yaw rate and acceleration sensor assembly

      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 and ECT > 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 SENSOR ASSEMBLY

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

      Click here

    Result

    Proceed to

    NEXT
    NEXT

    PERFORM INITIALIZATION

    Click here