Last Modified: 07-31-2024 6.11:8.1.0 Doc ID: RM10000000257A3
Model Year Start: 2023 Model: GR Corolla Prod Date Range: [09/2022 - 11/2022]
Title: METER / GAUGE / DISPLAY: METER / GAUGE SYSTEM (except 12.3 Inch Display): Speedometer Malfunction; 2023 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 - 11/2022]

Speedometer Malfunction

DESCRIPTION

  • The combination meter assembly receives vehicle speed signals from the skid control ECU (brake actuator assembly) via CAN communication. The speed sensor detects the wheel speed and sends the appropriate signals to the skid control ECU (brake actuator assembly). The skid control ECU (brake actuator assembly) supplies power to the vehicle speed sensor. The skid control ECU (brake actuator assembly) detects vehicle speed signals based on pulses of the voltage.

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

  • When replacing the combination meter assembly, always replace it with a new one. If a combination meter assembly which was installed to another vehicle is used, the information stored in it will not match the information from the vehicle and a DTC may be stored.
  • for TMC Made:

    When replacing any of the following ECUs, update the ECU security key.

    Click here 2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 -        ]; SETUP: WHEN REPLACING OR REMOVING/INSTALLING PARTS: UPDATE ECU SECURITY KEY

    • Combination meter assembly
    • Skid control ECU (brake actuator assembly)

PROCEDURE

1.

CHECK TIRES

(a) Check the tire size, tire wear and tire pressures are normal.

Click here 2023 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 - 11/2022]; TIRE / WHEEL: TIRE AND WHEEL SYSTEM: INSPECTION

HINT:

Factors that affect the indicated vehicle speed include the tire size, tire wear and tire pressures.

NG

REPLACE TIRE OR ADJUST TIRE PRESSURERE
OK

2.

CONFIRM MODEL

(a) Choose the model to be inspected.

Result

Proceed to

for HV Model

A

for Gasoline Model

B
B

GO TO STEP 8

A

3.

CHECK CAN COMMUNICATION SYSTEM

(a) Check if CAN communication DTCs are output.

Click here 2023 MY Corolla Corolla HV [09/2022 - 11/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for HV Model): DIAGNOSIS SYSTEM

Result

Proceed to

DTCs are not output

A

DTCs are output

B
B

GO TO CAN COMMUNICATION SYSTEM

A

4.

CHECK FOR DTC (ELECTRONICALLY CONTROLLED BRAKE SYSTEM)

(a) Check if electronically controlled brake system DTCs are output.

Chassis > Brake/EPB > Trouble Codes

Chassis > Brake Booster > Trouble Codes

Result

Proceed to

DTCs are not output

A

DTCs are output

B
B

GO TO ELECTRONICALLY CONTROLLED BRAKE SYSTEM

A

5.

CONFIRM MODEL

(a) Choose the model to be inspected.

Result

Proceed to

for Speedometer Unit km/h Type

A

for Speedometer Unit MPH Type

B
B

GO TO STEP 7

A

6.

PERFORM ACTIVE TEST USING GTS

(a) Perform the Active Test according to the display on the GTS.

Body Electrical > Combination Meter > Active Test

Tester Display

Measurement Item

Control Range

Diagnostic Note

Speed Signal Input (0)

Vehicle speed test signal input

ON

When this Active Test is performed, an actual vehicle speed signal is sent via CAN communication to the combination meter assembly to operate the speedometer. The seat belt warning buzzer, etc. may operate when performing this Active Test.

Speed Signal Input (40)

Vehicle speed test signal input

ON
  • When this Active Test is performed, an actual vehicle speed signal is sent via CAN communication to the combination meter assembly to operate the speedometer. The seat belt warning buzzer, etc. may operate when performing this Active Test.
  • The value displayed on the speedometer may deviate.*

Speed Signal Input (80)

Vehicle speed test signal input

ON
  • When this Active Test is performed, an actual vehicle speed signal is sent via CAN communication to the combination meter assembly to operate the speedometer. The seat belt warning buzzer, etc. may operate when performing this Active Test.
  • The value displayed on the speedometer may deviate.*

Speed Signal Input (120)

Vehicle speed test signal input

ON
  • When this Active Test is performed, an actual vehicle speed signal is sent via CAN communication to the combination meter assembly to operate the speedometer. The seat belt warning buzzer, etc. may operate when performing this Active Test.
  • The value displayed on the speedometer may deviate.*

Speed Signal Input (160)

Vehicle speed test signal input

ON
  • When this Active Test is performed, an actual vehicle speed signal is sent via CAN communication to the combination meter assembly to operate the speedometer. The seat belt warning buzzer, etc. may operate when performing this Active Test.
  • The value displayed on the speedometer may deviate.*

Speed Signal Input (200)

Vehicle speed test signal input

ON
  • When this Active Test is performed, an actual vehicle speed signal is sent via CAN communication to the combination meter assembly to operate the speedometer. The seat belt warning buzzer, etc. may operate when performing this Active Test.
  • The value displayed on the speedometer may deviate.*

Speed Signal Input (240)

Vehicle speed test signal input

ON
  • When this Active Test is performed, an actual vehicle speed signal is sent via CAN communication to the combination meter assembly to operate the speedometer. The seat belt warning buzzer, etc. may operate when performing this Active Test.
  • The value displayed on the speedometer may deviate.*

Speed Signal Input (280)

Vehicle speed test signal input

ON
  • When this Active Test is performed, an actual vehicle speed signal is sent via CAN communication to the combination meter assembly to operate the speedometer. The seat belt warning buzzer, etc. may operate when performing this Active Test.
  • When the value of the Active Test is more than or equal to the speedometer upper limit, the indicated speed stops at the upper limit.
  • *: For the tolerance of speedometer, refer to Operation Check.

    Click here 2023 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 - 11/2022]; METER / GAUGE / DISPLAY: METER / GAUGE SYSTEM (except 12.3 Inch Display): OPERATION CHECK

Body Electrical > Combination Meter > Active Test

Tester Display

Speed Signal Input (0)

Body Electrical > Combination Meter > Active Test

Tester Display

Speed Signal Input (40)

Body Electrical > Combination Meter > Active Test

Tester Display

Speed Signal Input (80)

Body Electrical > Combination Meter > Active Test

Tester Display

Speed Signal Input (120)

Body Electrical > Combination Meter > Active Test

Tester Display

Speed Signal Input (160)

Body Electrical > Combination Meter > Active Test

Tester Display

Speed Signal Input (200)

Body Electrical > Combination Meter > Active Test

Tester Display

Speed Signal Input (240)

Body Electrical > Combination Meter > Active Test

Tester Display

Speed Signal Input (280)

Result

Proceed to

Active Test can be performed correctly

A

Active Test cannot be performed correctly

B
A

REPLACE SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY)

B

REPLACE COMBINATION METER ASSEMBLY

7.

PERFORM ACTIVE TEST USING GTS

(a) Perform the Active Test according to the display on the GTS.

Body Electrical > Combination Meter > Active Test

Tester Display

Measurement Item

Control Range

Diagnostic Note

Speed Signal Input (0)

Vehicle speed test signal input

ON

When this Active Test is performed, an actual vehicle speed signal is sent via CAN communication to the combination meter assembly to operate the speedometer. The seat belt warning buzzer, etc. may operate when performing this Active Test.

Speed Signal Input (40)

Vehicle speed test signal input

ON
  • When this Active Test is performed, an actual vehicle speed signal is sent via CAN communication to the combination meter assembly to operate the speedometer. The seat belt warning buzzer, etc. may operate when performing this Active Test.
  • The value displayed on the speedometer may deviate.*

Speed Signal Input (80)

Vehicle speed test signal input

ON
  • When this Active Test is performed, an actual vehicle speed signal is sent via CAN communication to the combination meter assembly to operate the speedometer. The seat belt warning buzzer, etc. may operate when performing this Active Test.
  • The value displayed on the speedometer may deviate.*

Speed Signal Input (120)

Vehicle speed test signal input

ON
  • When this Active Test is performed, an actual vehicle speed signal is sent via CAN communication to the combination meter assembly to operate the speedometer. The seat belt warning buzzer, etc. may operate when performing this Active Test.
  • The value displayed on the speedometer may deviate.*

Speed Signal Input (160)

Vehicle speed test signal input

ON
  • When this Active Test is performed, an actual vehicle speed signal is sent via CAN communication to the combination meter assembly to operate the speedometer. The seat belt warning buzzer, etc. may operate when performing this Active Test.
  • The value displayed on the speedometer may deviate.
  • *: For the tolerance of each Active Test, refer to On-vehicle Inspection.

    Click here 2023 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 - 11/2022]; METER / GAUGE / DISPLAY: METER / GAUGE SYSTEM (except 12.3 Inch Display): OPERATION CHECK

Body Electrical > Combination Meter > Active Test

Tester Display

Speed Signal Input (0)

Body Electrical > Combination Meter > Active Test

Tester Display

Speed Signal Input (40)

Body Electrical > Combination Meter > Active Test

Tester Display

Speed Signal Input (80)

Body Electrical > Combination Meter > Active Test

Tester Display

Speed Signal Input (120)

Body Electrical > Combination Meter > Active Test

Tester Display

Speed Signal Input (160)

Result

Proceed to

Active Test can be performed correctly

A

Active Test cannot be performed correctly

B
A

REPLACE SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY)

B

REPLACE COMBINATION METER ASSEMBLY

8.

CHECK CAN COMMUNICATION SYSTEM

(a) Check if CAN communication DTCs are output.

for Gasoline Model TMC Made: Click here 2023 MY Corolla Corolla Hatchback GR Corolla [09/2022 - 11/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model TMC Made): DIAGNOSIS SYSTEM

for Gasoline Model except TMC Made: Click here 2023 MY Corolla Corolla Hatchback GR Corolla [09/2022 - 11/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model except TMC Made): DIAGNOSIS SYSTEM

Result

Proceed to

DTCs are not output

A

DTCs are output

B
B

GO TO CAN COMMUNICATION SYSTEM

for Gasoline Model TMC Made: Click here 2023 MY Corolla Corolla Hatchback GR Corolla [09/2022 - 11/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model TMC Made): HOW TO PROCEED WITH TROUBLESHOOTING

for Gasoline Model except TMC Made: Click here 2023 MY Corolla Corolla Hatchback GR Corolla [09/2022 - 11/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model except TMC Made): HOW TO PROCEED WITH TROUBLESHOOTING

A

9.

CHECK FOR DTC (ELECTRONICALLY CONTROLLED BRAKE SYSTEM)

(a) Check if electronically controlled brake system DTCs are output.

Chassis > Brake/EPB > Trouble Codes

Result

Proceed to

DTCs are not output

A

DTCs are output

B
B

GO TO ELECTRONICALLY CONTROLLED BRAKE SYSTEM

for Gasoline Model with Electric Parking Brake System TMMMS Made: Click here 2023 MY Corolla Corolla Hatchback GR Corolla [09/2022 - 11/2022]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model with Electric Parking Brake System TMMMS Made): DIAGNOSTIC TROUBLE CODE CHART

for Gasoline Model without Electric Parking Brake System TMC Made: Click here 2023 MY Corolla Corolla Hatchback GR Corolla [09/2022 - 11/2022]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model without Electric Parking Brake System TMC Made): DIAGNOSTIC TROUBLE CODE CHART

for Gasoline Model without Electric Parking Brake System TMMMS Made: Click here 2023 MY Corolla Corolla Hatchback GR Corolla [09/2022 - 11/2022]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model without Electric Parking Brake System TMMMS Made): DIAGNOSTIC TROUBLE CODE CHART

A

10.

CONFIRM MODEL

(a) Choose the model to be inspected.

Result

Proceed to

for Speedometer Unit km/h Type

A

for Speedometer Unit MPH Type

B
B

GO TO STEP 12

A

11.

PERFORM ACTIVE TEST USING GTS

(a) Perform the Active Test according to the display on the GTS.

Body Electrical > Combination Meter > Active Test

Tester Display

Measurement Item

Control Range

Diagnostic Note

Speed Signal Input (0)

Vehicle speed test signal input

ON

When this Active Test is performed, an actual vehicle speed signal is sent via CAN communication to the combination meter assembly to operate the speedometer. The seat belt warning buzzer, etc. may operate when performing this Active Test.

Speed Signal Input (40)

Vehicle speed test signal input

ON
  • When this Active Test is performed, an actual vehicle speed signal is sent via CAN communication to the combination meter assembly to operate the speedometer. The seat belt warning buzzer, etc. may operate when performing this Active Test.
  • The value displayed on the speedometer may deviate.*

Speed Signal Input (80)

Vehicle speed test signal input

ON
  • When this Active Test is performed, an actual vehicle speed signal is sent via CAN communication to the combination meter assembly to operate the speedometer. The seat belt warning buzzer, etc. may operate when performing this Active Test.
  • The value displayed on the speedometer may deviate.*

Speed Signal Input (120)

Vehicle speed test signal input

ON
  • When this Active Test is performed, an actual vehicle speed signal is sent via CAN communication to the combination meter assembly to operate the speedometer. The seat belt warning buzzer, etc. may operate when performing this Active Test.
  • The value displayed on the speedometer may deviate.*

Speed Signal Input (160)

Vehicle speed test signal input

ON
  • When this Active Test is performed, an actual vehicle speed signal is sent via CAN communication to the combination meter assembly to operate the speedometer. The seat belt warning buzzer, etc. may operate when performing this Active Test.
  • The value displayed on the speedometer may deviate.*

Speed Signal Input (200)

Vehicle speed test signal input

ON
  • When this Active Test is performed, an actual vehicle speed signal is sent via CAN communication to the combination meter assembly to operate the speedometer. The seat belt warning buzzer, etc. may operate when performing this Active Test.
  • The value displayed on the speedometer may deviate.*

Speed Signal Input (240)

Vehicle speed test signal input

ON
  • When this Active Test is performed, an actual vehicle speed signal is sent via CAN communication to the combination meter assembly to operate the speedometer. The seat belt warning buzzer, etc. may operate when performing this Active Test.
  • The value displayed on the speedometer may deviate.*

Speed Signal Input (280)

Vehicle speed test signal input

ON
  • When this Active Test is performed, an actual vehicle speed signal is sent via CAN communication to the combination meter assembly to operate the speedometer. The seat belt warning buzzer, etc. may operate when performing this Active Test.
  • When the value of the Active Test is more than or equal to the speedometer upper limit, the indicated speed stops at the upper limit.
  • *: For the tolerance of speedometer, refer to Operation Check.

    Click here 2023 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 - 11/2022]; METER / GAUGE / DISPLAY: METER / GAUGE SYSTEM (except 12.3 Inch Display): OPERATION CHECK

Body Electrical > Combination Meter > Active Test

Tester Display

Speed Signal Input (0)

Body Electrical > Combination Meter > Active Test

Tester Display

Speed Signal Input (40)

Body Electrical > Combination Meter > Active Test

Tester Display

Speed Signal Input (80)

Body Electrical > Combination Meter > Active Test

Tester Display

Speed Signal Input (120)

Body Electrical > Combination Meter > Active Test

Tester Display

Speed Signal Input (160)

Body Electrical > Combination Meter > Active Test

Tester Display

Speed Signal Input (200)

Body Electrical > Combination Meter > Active Test

Tester Display

Speed Signal Input (240)

Body Electrical > Combination Meter > Active Test

Tester Display

Speed Signal Input (280)

Result

Proceed to

Active Test can be performed correctly

A

Active Test cannot be performed correctly

B
A

REPLACE SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY)

B

REPLACE COMBINATION METER ASSEMBLY

12.

PERFORM ACTIVE TEST USING GTS

(a) Perform the Active Test according to the display on the GTS.

Body Electrical > Combination Meter > Active Test

Tester Display

Measurement Item

Control Range

Diagnostic Note

Speed Signal Input (0)

Vehicle speed test signal input

ON

When this Active Test is performed, an actual vehicle speed signal is sent via CAN communication to the combination meter assembly to operate the speedometer. The seat belt warning buzzer, etc. may operate when performing this Active Test.

Speed Signal Input (40)

Vehicle speed test signal input

ON
  • When this Active Test is performed, an actual vehicle speed signal is sent via CAN communication to the combination meter assembly to operate the speedometer. The seat belt warning buzzer, etc. may operate when performing this Active Test.
  • The value displayed on the speedometer may deviate.*

Speed Signal Input (80)

Vehicle speed test signal input

ON
  • When this Active Test is performed, an actual vehicle speed signal is sent via CAN communication to the combination meter assembly to operate the speedometer. The seat belt warning buzzer, etc. may operate when performing this Active Test.
  • The value displayed on the speedometer may deviate.*

Speed Signal Input (120)

Vehicle speed test signal input

ON
  • When this Active Test is performed, an actual vehicle speed signal is sent via CAN communication to the combination meter assembly to operate the speedometer. The seat belt warning buzzer, etc. may operate when performing this Active Test.
  • The value displayed on the speedometer may deviate.*

Speed Signal Input (160)

Vehicle speed test signal input

ON
  • When this Active Test is performed, an actual vehicle speed signal is sent via CAN communication to the combination meter assembly to operate the speedometer. The seat belt warning buzzer, etc. may operate when performing this Active Test.
  • The value displayed on the speedometer may deviate.
  • *: For the tolerance of speedometer, refer to Operation Check.

    Click here 2023 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 - 11/2022]; METER / GAUGE / DISPLAY: METER / GAUGE SYSTEM (except 12.3 Inch Display): OPERATION CHECK

Body Electrical > Combination Meter > Active Test

Tester Display

Speed Signal Input (0)

Body Electrical > Combination Meter > Active Test

Tester Display

Speed Signal Input (40)

Body Electrical > Combination Meter > Active Test

Tester Display

Speed Signal Input (80)

Body Electrical > Combination Meter > Active Test

Tester Display

Speed Signal Input (120)

Body Electrical > Combination Meter > Active Test

Tester Display

Speed Signal Input (160)

Result

Proceed to

Active Test can be performed correctly

A

Active Test cannot be performed correctly

B
A

REPLACE SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY)

B

REPLACE COMBINATION METER ASSEMBLY