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.

Tech Tips

If a CAN communication DTC is output, perform troubleshooting for that DTC 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. With the vehicle speed 30 km/h (18 mph) or more, the difference between the longitudinal acceleration calculated based on the G sensor value and the longitudinal acceleration calculated based on the vehicle speed exceeds 0.35 G for 60 seconds or more.

  3. 3.0 seconds

  4. 1 trip detection logic

  • Yaw rate sensor

  • Brake actuator assembly (Skid control ECU)

  • CAN communication system

  1. The ignition switch is ON.

  2. No change detected in the yaw rate sensor signal 16 times or more while the vehicle speed decreases from 30 km/h (18 mph) to 0 km/h (0 mph).

  3. 3.0 seconds

  4. 1 trip detection logic

WIRING DIAGRAM

Refer to DTC P1585 Click here.

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 (HOW TO PROCEED WITH TROUBLESHOOTING) Click here

    A

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


    1. Clear the DTCs Click here.

    2. Perform a road test where the vehicle is driven at 30 km/ h (18 mph) or more, the brakes are applied at least 16 times and the vehicle is finally stopped.

    3. Connect the intelligent tester to the DLC3.

    4. Turn the ignition switch to ON.

    5. Turn the intelligent tester on.

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

    7. Read the DTCs using the tester.

      Result
      Result Proceed to
      Only P1586 is output A
      P1586 and other DTCs are output B

      Tech Tips

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


    B

    GO TO DTC CHART Click here

    A

  3. 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 intelligent 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.

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

      Converted output voltage of yaw rate sensor/

      min.: 0 V

      max.: 5 V

      Displays converted voltage of yaw rate 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 displayed is not as specified under Normal Condition A
      Data displayed is as specified under Normal Condition B

    B

    REPLACE BRAKE ACTUATOR ASSEMBLY (SKID CONTROL ECU) Click here

    A

  4. REPLACE YAW RATE SENSOR


    1. Replace the yaw rate sensor Click here.


    NEXT

  5. PERFORM INITIALIZATION

    Note


    • Performing reset memory will clear the learned values of both the yaw rate sensor (deceleration sensor 0 point calibration) and CVT oil pressure (CVT oil pressure calibration). Make sure to perform reset memory, yaw rate sensor 0 point calibration and CVT oil pressure calibration when replacing any of the parts shown in the following table:

      Replaced Part

      • Continuously variable transaxle assembly

      • ECM

      • Oil pressure sensor

      • Yaw rate sensor

    • After performing reset memory, always perform yaw rate sensor (deceleration sensor 0 point) calibration first, and then CVT oil pressure calibration.

    • Always perform 0 point calibration with the vehicle on level ground (Inclination: 0 +/-0.25°).

    • Do not shake or vibrate the vehicle during 0 point calibration.


    1. Using the intelligent tester, perform reset memory, deceleration sensor 0 point calibration and CVT oil pressure calibration Click here.

    2. Check that no DTC is stored.


    NEXT

    END