Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM100000001GUSV
Model Year Start: 2020 Model: GR Corolla Prod Date Range: [01/2019 - 09/2022]
Title: METER / GAUGE / DISPLAY: METER / GAUGE SYSTEM (for Gasoline Model): Tachometer Malfunction; 2020 - 2022 MY Corolla Corolla Hatchback GR Corolla [01/2019 - 09/2022]

Tachometer Malfunction

DESCRIPTION

In this circuit, the combination meter assembly receives engine speed signals from the ECM via CAN communication. The combination meter assembly displays the engine speed calculated based on the data received from the ECM.

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.
  • Before replacing the ECM, refer to Registration.

    Click here 2020 MY Corolla Corolla Hatchback GR Corolla [01/2019 - 09/2019]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, Gasoline Model): REGISTRATION 2020 MY Corolla Corolla Hatchback GR Corolla [09/2019 - 04/2020]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, Gasoline Model): REGISTRATION 2021 - 2022 MY Corolla Corolla Hatchback GR Corolla [04/2020 - 09/2022]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, Gasoline Model): REGISTRATION

PROCEDURE

1.

CHECK CAN COMMUNICATION SYSTEM

(a) Check if CAN communication DTCs are output.

Click here 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

Result

Proceed to

DTCs are not output

A

DTCs are output

B
B

GO TO CAN COMMUNICATION SYSTEM

A

2.

CONFIRM MODEL

(a) Choose the model to be inspected.

Result

Proceed to

for M20A-FKS

A

for 2ZR-FAE

B
B

GO TO STEP 4

A

3.

CHECK FOR DTC (SFI SYSTEM)

(a) Check if SFI system DTCs are output.

Powertrain > Engine > Trouble Codes

Result

Proceed to

DTCs are not output

A

DTCs are output

B
A

GO TO STEP 5

B

GO TO SFI SYSTEM 2020 MY Corolla Corolla Hatchback [01/2019 - 03/2019]; M20A-FKS (ENGINE CONTROL): SFI SYSTEM: DIAGNOSTIC TROUBLE CODE CHART 2020 MY Corolla Corolla Hatchback [03/2019 - 09/2019]; M20A-FKS (ENGINE CONTROL): SFI SYSTEM: DIAGNOSTIC TROUBLE CODE CHART 2020 MY Corolla Corolla Hatchback [09/2019 - 04/2020]; M20A-FKS (ENGINE CONTROL): SFI SYSTEM: DIAGNOSTIC TROUBLE CODE CHART 2021 MY Corolla Corolla Hatchback [04/2020 - 06/2020]; M20A-FKS (ENGINE CONTROL): SFI SYSTEM: DIAGNOSTIC TROUBLE CODE CHART 2021 MY Corolla Corolla Hatchback [06/2020 - 06/2021]; M20A-FKS (ENGINE CONTROL): SFI SYSTEM: DIAGNOSTIC TROUBLE CODE CHART 2022 MY Corolla Corolla Hatchback [06/2021 - 09/2022]; M20A-FKS (ENGINE CONTROL): SFI SYSTEM: DIAGNOSTIC TROUBLE CODE CHART

4.

CHECK FOR DTC (SFI SYSTEM)

(a) Check if SFI system DTCs are output.

Powertrain > Engine and ECT > Trouble Codes

Result

Proceed to

DTCs are not output

A

DTCs are output

B
B

GO TO SFI SYSTEM 2020 MY Corolla [01/2019 - 03/2019]; 2ZR-FAE (ENGINE CONTROL): SFI SYSTEM: DIAGNOSTIC TROUBLE CODE CHART 2020 MY Corolla [03/2019 - 04/2020]; 2ZR-FAE (ENGINE CONTROL): SFI SYSTEM: DIAGNOSTIC TROUBLE CODE CHART 2021 - 2022 MY Corolla [04/2020 - 09/2022]; 2ZR-FAE (ENGINE CONTROL): SFI SYSTEM: DIAGNOSTIC TROUBLE CODE CHART

A

5.

PERFORM ACTIVE TEST USING TECHSTREAM

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch ON.

(c) Turn the Techstream on.

(d) Enter the following menus: Body Electrical / Combination Meter / Active Test.

(e) Perform the Active Test according to the display on the Techstream.

Body Electrical > Combination Meter > Active Test

Tester Display

Measurement Item

Control Range

Diagnostic Note

TachoMeter Operation (0rpm)

Tachometer

(0 rpm)

ON

-

TachoMeter Operation (1000rpm)

Tachometer

(1000 rpm)

ON

-

TachoMeter Operation (2000rpm)

Tachometer

(2000 rpm)

ON

-

TachoMeter Operation (3000rpm)

Tachometer

(3000 rpm)

ON

-

TachoMeter Operation (4000rpm)

Tachometer

(4000 rpm)

ON

-

TachoMeter Operation (5000rpm)

Tachometer

(5000 rpm)

ON

-

TachoMeter Operation (6000rpm)

Tachometer

(6000 rpm)

ON

-

TachoMeter Operation (7000rpm)

Tachometer

(7000 rpm)

ON

-

TachoMeter Operation (8000rpm)

Tachometer

(8000 rpm)

ON

-

Body Electrical > Combination Meter > Active Test

Tester Display

TachoMeter Operation (0rpm)

Body Electrical > Combination Meter > Active Test

Tester Display

TachoMeter Operation (1000rpm)

Body Electrical > Combination Meter > Active Test

Tester Display

TachoMeter Operation (2000rpm)

Body Electrical > Combination Meter > Active Test

Tester Display

TachoMeter Operation (3000rpm)

Body Electrical > Combination Meter > Active Test

Tester Display

TachoMeter Operation (4000rpm)

Body Electrical > Combination Meter > Active Test

Tester Display

TachoMeter Operation (5000rpm)

Body Electrical > Combination Meter > Active Test

Tester Display

TachoMeter Operation (6000rpm)

Body Electrical > Combination Meter > Active Test

Tester Display

TachoMeter Operation (7000rpm)

Body Electrical > Combination Meter > Active Test

Tester Display

TachoMeter Operation (8000rpm)

OK:

Tachometer indication is normal.

OK

REPLACE ECM

for M20A-FKS: Click here 2020 MY Corolla Corolla Hatchback [01/2019 - 03/2019]; M20A-FKS (ENGINE CONTROL): ECM: REMOVAL 2020 - 2022 MY Corolla Corolla Hatchback [03/2019 - 09/2022]; M20A-FKS (ENGINE CONTROL): ECM: REMOVAL

for 2ZR-FAE: Click here 2020 MY Corolla [01/2019 - 03/2019]; 2ZR-FAE (ENGINE CONTROL): ECM: REMOVAL 2020 - 2022 MY Corolla [03/2019 - 09/2022]; 2ZR-FAE (ENGINE CONTROL): ECM: REMOVAL

NG

REPLACE COMBINATION METER ASSEMBLY 2020 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 - 03/2019]; METER / GAUGE / DISPLAY: COMBINATION METER: REMOVAL 2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [03/2019 - 09/2022]; METER / GAUGE / DISPLAY: COMBINATION METER: REMOVAL