CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM, Diagnostic DTC:P1586

DTC Code DTC Name
P1586 Acceleration Sensor Malfunction

DESCRIPTION

The ECM determines the vehicle inclination based on a signal from the yaw rate sensor.

Tip:

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

DTC Code

DTC Detection Condition

  1. Diagnosis Condition

  2. Malfunction Status

  3. Malfunction Time

  4. Other

Trouble Area

P1586

  1. The ignition switch is ON.

  2. At a vehicle speed 30 km/h (19 mph) or more, the difference between longitudinal G calculated based on the yaw rate sensor (G sensor) value and longitudinal G calculated based on the vehicle speed exceeds 0.35 G for 60 seconds or more.

  3. 3 seconds or more

  4. 1-trip detection logic

  • Yaw rate sensor

  • Brake actuator assembly (Skid control ECU)

  • CAN communication system

  1. The ignition switch is ON.

  2. The yaw rate sensor signal does not change 16 times or more while the vehicle speed decreases from 30 km/h (19 mph) to 0 km/h (0 mph).

  3. 3 seconds or more

  4. 1-trip detection logic

WIRING DIAGRAM

Refer to DTC P1585 (Click here).

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 ignition switch to ON.

    3. Turn the GTS on.

    4. Check for DTCs.

      Table 1. Result

      Result

      Proceed to

      DTC U0129 is not output

      A

      DTC U0129 is output

      B

    GO TO CAN COMMUNICATION SYSTEM

    (Click here)

  2. CHECK DTC OUTPUT (IN ADDITION TO DTC P1586)

    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the GTS on.

    4. Clear the DTCs.

    5. Perform a road test where the vehicle is driven at 30 km/h (19 mph) or more, the brakes are applied at least 16 times and the vehicle is finally stopped.

    6. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.

    7. Read the DTCs using the GTS.

      Tip:

      If any DTCs other than P1586 are output, perform troubleshooting for those DTCs first.

      Table 2. Result

      Result

      Proceed to

      Only DTC P1586 is output

      A

      DTC P1586 and other DTCs are output

      B

    GO TO DTC CHART

    (Click here)

  3. 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 / Primary.

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

      Table 3. Engine and ECT

      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

      -
      Table 4. Result

      Result

      Proceed to

      Data display is not within Normal Condition range

      A

      Data display is within Normal Condition range

      B

    REPLACE BRAKE ACTUATOR ASSEMBLY

    (Click here)

  4. REPLACE YAW RATE SENSOR

    1. Replace the yaw rate sensor (Click here).

    PERFORM INITIALIZATION

    (Click here)