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Home >> Toyota >> 2017 >> Corolla LE >> Repair and Diagnosis (Single Page) >> Transmission >> Automatic Trans >> Continuously Variable Transaxle - Diagnostic Codes (2 Of 3) (Model Code: ZRE172) >> Continuously Variable Transaxle System >> DTC P1586: Acceleration Sensor Malfunction [08/2016 - ] >> Procedure
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DTC P1586: Acceleration Sensor Malfunction [08/2016 - ]: Procedure

  1. CHECK DTC OUTPUT 
    1. Connect the Techstream to the DLC3.
    2. Turn the ignition switch to ON.
    3. Turn the Techstream 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

    Result:  2

    B 

    GO TO CAN COMMUNICATION SYSTEM 

    w/o Central Gateway ECU: Refer to DIAGNOSIS SYSTEM [08/2016 - 08/2017] Refer to DIAGNOSIS SYSTEM [08/2017 - ]

    w/ Central Gateway ECU: Refer to DIAGNOSIS SYSTEM [08/2016 - ]

    Result:  1

    A 

    See step  2

  2. CHECK DTC OUTPUT (IN ADDITION TO DTC P1586) 
    1. Connect the Techstream to the DLC3.
    2. Turn the Techstream on.
    3. Turn the ignition switch to ON.
    4. Clear the DTCs.

      Powertrain > Engine and ECT > Clear DTCs 

    5. 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.
    6. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.

      Powertrain > Engine and ECT > Trouble Codes 

    7. Read the DTCs using the Techstream.

      HINT: 

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

      Result

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

    Result:  2

    B 

    GO TO DTC CHART. Refer to  DIAGNOSTIC TROUBLE CODE CHART [08/2016 - 08/2017]  Refer to  DIAGNOSTIC TROUBLE CODE CHART [08/2017 - ] 

    Result:  1

    A 

    See step  3

  3. READ VALUE USING TECHSTREAM (G SENSOR) 
    1. Connect the Techstream to the DLC3.
    2. Turn the ignition switch to ON.
    3. Turn the Techstream on.
    4. Enter the following menus: Powertrain / Engine and ECT / Data List / Primary.
    5. In accordance with the display on the Techstream, 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

    Result:  2

    B 

    REPLACE BRAKE ACTUATOR ASSEMBLY. Refer to  COMPONENTS [08/2015 - 08/2017]  Refer to  COMPONENTS [08/2017 - ] 

    Result:  1

    A 

    See step  4

  4. REPLACE AIRBAG SENSOR ASSEMBLY 
    1. Replace the airbag sensor assembly (yaw rate and acceleration sensor).

      Refer to COMPONENTS [08/2013 - ]

      Result

      Proceed to
      NEXT

    Result:  1

    NEXT 

    PERFORM INITIALIZATION. Refer to  INITIALIZATION [08/2016 - ] 

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