Last Modified: 07-31-2024 6.11:8.1.0 Doc ID: RM100000001GYSQ
Model Year Start: 2020 Model: Corolla Hatchback Prod Date Range: [01/2019 - 11/2022]
Title: K313 (CVT): CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM: P1585; Acceleration Sensor Circuit; 2020 - 2023 MY Corolla Corolla Hatchback [01/2019 - 11/2022]

DTC

P1585

Acceleration Sensor Circuit

DESCRIPTION

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

HINT:

  • The signal of the yaw rate and acceleration sensor (airbag sensor assembly) is sent to the skid control ECU (brake actuator assembly) via the CAN communication system.
  • 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

Any of the following conditions are met for 3 seconds or more (1-trip detection logic):

  • The output value of the yaw rate and acceleration sensor remains at -1.5 G or less, or 1.5 G or more for at least 1.2 seconds.
  • The 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.
  • No signal from the yaw rate and acceleration sensor is detected 7 times or more.
  • 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.
  • A 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.
  • Airbag sensor assembly (Yaw rate and acceleration sensor)
  • Brake actuator assembly (Skid control ECU)
  • CAN communication system

Does not come on

DTC stored

DTC Detection Condition Patterns:

 

Vehicle Condition

Pattern 1

Pattern 2

Pattern 3

Pattern 4

Pattern 5

Diagnostic Condition

The ignition switch is ON.

○

○

○

○

○

Malfunction Condition

The output value of the yaw rate and acceleration sensor remains at -1.5 G or less, or 1.5 G or more for at least 1.2 seconds.

○

-

-

-

-

The 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.

-

○

-

-

-

No signal from the yaw rate and acceleration sensor is detected 7 times or more.

-

-

○

-

-

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.

-

-

-

○

-

A 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.

-

-

-

-

○

Duration

3 seconds or more

3 seconds or more

3 seconds or more

3 seconds or more

3 seconds or more

Detection Logic

1-trip detection logic

1-trip detection logic

1-trip detection logic

1-trip detection logic

1-trip detection logic

HINT:

This DTC is stored when either of the above detection patterns is met.

CONFIRMATION DRIVING PATTERN

CAUTION:

When performing the confirmation driving pattern, obey all speed limits and traffic laws.

HINT:

After repairs have been completed, clear the DTCs and then check that the vehicle has returned to normal by performing the following All Readiness check procedure.

  1. Connect the Techstream to the DLC3.
  2. Turn the ignition switch to ON and turn the Techstream on.
  3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
  4. Turn the ignition switch off and wait for 2 minutes or more.
  5. Turn the ignition switch to ON and turn the Techstream on.
  6. Start the engine.
  7. Drive the vehicle while accelerating and decelerating repeatedly for several minutes.
  8. Stop the vehicle.
  9. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
  10. Input the DTC: P1585.
  11. Check the DTC judgment result.

    Techstream Display

    Description

    NORMAL
    • DTC judgment completed
    • System normal

    ABNORMAL
    • DTC judgment completed
    • System abnormal

    INCOMPLETE
    • DTC judgment not completed
    • Perform driving pattern after confirming DTC enabling conditions

    N/A
    • Unable to perform DTC judgment
    • Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit

    HINT:

    • If the judgment result shows NORMAL, the system is normal.
    • If the judgment result shows ABNORMAL, the system has a malfunction.
    • If the judgment result shows INCOMPLETE or N/A, perform the Confirmation Driving Pattern and check the DTC judgment result again.

WIRING DIAGRAM

CAUTION / NOTICE / HINT

CAUTION:

  • Strictly observe posted speed, limits, traffic laws and road conditions.
  • Do not drive the vehicle with the cable of the Techstream contacting the pedals, shift lever or steering wheel.
  • Driving the vehicle with the cable of the Techstream contacting these areas could impede vehicle control, resulting in a serious accident.
  • Do not operate the Techstream while driving the vehicle.
  • Operating the Techstream while driving the vehicle will prevent you from paying sufficient attention to vehicle surroundings, and could result in a serious accident.

NOTICE:

  • Perform initialization when parts related to the continuously variable transaxle system are replaced.

    Click here 2020 - 2023 MY Corolla Corolla Hatchback [01/2019 - 11/2022]; K313 (CVT): CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM: INITIALIZATION

  • Check that no DTCs are stored after performing initialization.

    Click here 2020 - 2023 MY Corolla Corolla Hatchback [01/2019 - 11/2022]; K313 (CVT): CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM: DTC CHECK / CLEAR

PROCEDURE

1.

CHECK DTC OUTPUT

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(c) Turn the Techstream on.

(d) Check for DTCs.

Powertrain > Engine and ECT > Trouble Codes

Result

Proceed to

DTC U0129 is not output

A

DTC U0129 is output

B
B

GO TO CAN COMMUNICATION SYSTEM 2020 MY Corolla Corolla Hatchback GR Corolla [01/2019 - 03/2019]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): DIAGNOSIS SYSTEM 2020 MY Corolla Corolla Hatchback GR Corolla [03/2019 - 09/2019]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): DIAGNOSIS SYSTEM 2020 MY Corolla Corolla Hatchback GR Corolla [09/2019 - 04/2020]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): DIAGNOSIS SYSTEM 2021 - 2022 MY Corolla Corolla Hatchback GR Corolla [04/2020 - 09/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): DIAGNOSIS SYSTEM 2023 MY Corolla Corolla Hatchback GR Corolla [09/2022 - 11/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model except TMC Made): DIAGNOSIS SYSTEM

A

2.

READ VALUE USING TECHSTREAM (G SENSOR)

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(c) Turn the Techstream on.

(d) Enter the following menus: Powertrain / Engine and ECT / Data List.

(e) According to 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 yaw rate and acceleration 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

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Powertrain > Engine and ECT > Data List

Tester Display

G Sensor

Result

Proceed to

Data List value is not normal

A

Data List value is normal

B
B

REPLACE BRAKE ACTUATOR ASSEMBLY 2020 - 2022 MY Corolla Corolla Hatchback GR Corolla [01/2019 - 09/2022]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: BRAKE ACTUATOR (for Gasoline Model): COMPONENTS 2023 - 2025 MY Corolla Corolla Hatchback GR Corolla [09/2022 -        ]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: BRAKE ACTUATOR (for Gasoline Model): COMPONENTS

A

3.

REPLACE AIRBAG SENSOR ASSEMBLY

(a) Replace the airbag sensor assembly.

Click here 2019 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [06/2018 - 09/2022]; SUPPLEMENTAL RESTRAINT SYSTEMS: CENTER AIRBAG SENSOR ASSEMBLY: COMPONENTS 2023 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 - 11/2022]; SUPPLEMENTAL RESTRAINT SYSTEMS: CENTER AIRBAG SENSOR ASSEMBLY: COMPONENTS

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