Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM100000001HAQ6
Model Year Start: 2020 Model: GR Corolla Prod Date Range: [01/2019 - 09/2022]
Title: DOOR / HATCH: FUEL LID OPENER SYSTEM: Fuel Lid Opener does not Operate; 2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 - 09/2022]

Fuel Lid Opener does not Operate

DESCRIPTION

When the fuel lid opener switch is pushed, a fuel lid opener switch signal is sent to the ECM. The ECM turns on the FUEL OPN relay and EFI-MAIN relay, and the fuel lid lock with motor assembly opens the fuel lid. When the fuel lid is open, a fuel lid courtesy switch signal is output from the fuel lid lock with motor assembly.

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

Inspect the fuses for circuits related to this system before performing the following procedure.

PROCEDURE

1.

CHECK FOR DTCs (HEALTH CHECK)

(a) Connect the Techstream to the DLC3.

(b) Turn the power switch on (IG).

(c) Turn the Techstream on.

(d) Enter the following menus: System Select / Health Check.

(e) Check DTCs.

Result

Proceed to

No DTCs are output.

A

DTCs are output.

B
B

GO TO DTC CHART
A

2.

CHECK EVAPORATIVE EMISSION CONTROL SYSTEM

(a) Perform the Evaporative System Check using the Techstream (Automatic Mode). Refer to "CONFIRMATION DRIVING PATTERN" of P045011.

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(b) Check for DTCs.

Powertrain > Engine > Trouble Codes

OK:

Evaporative emission control system DTCs are not output.

NG

GO TO SFI SYSTEM

OK

3.

PERFORM ACTIVE TEST USING TECHSTREAM (ACTIVATE THE FUEL FILLER OPENER)

(a) Enter the following menus: Powertrain / Engine / Active Test.

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

Powertrain > Engine > Active Test

Tester Display

Measurement Item

Control Range

Diagnostic Note

Activate the Fuel Filler Opener

Fuel lid lock with motor assembly

OFF/ON

-

Powertrain > Engine > Active Test

Tester Display

Activate the Fuel Filler Opener

OK:

The fuel lid lock with motor assembly operates normally.

NG

GO TO STEP 10

OK

4.

READ VALUE USING TECHSTREAM (Fuel Lid SW)

(a) Enter the following menus: Powertrain / Engine / Data List.

(b) Read the Data List according to the display on the Techstream.

Powertrain > Engine > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

Fuel Lid SW

Fuel lid opener switch status

Close or Open

Close: Fuel lid opener switch not pushed

Open: Fuel lid opener switch pushed

-

Powertrain > Engine > Data List

Tester Display

Fuel Lid SW

OK:

The Techstream display changes correctly in response to the operation of the fuel lid opener switch.

NG

GO TO STEP 8

OK

5.

READ VALUE USING TECHSTREAM (FUEL LID SENSOR SW)

(a) Read the Data List according to the display on the Techstream.

Powertrain > Engine > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

Fuel Lid Sensor SW

Fuel lid courtesy switch status

Close or Open

Close: Fuel lid closed

Open: Fuel lid open

-

Powertrain > Engine > Data List

Tester Display

Fuel Lid Sensor SW

OK:

The Techstream display changes correctly in response to the operation of the fuel lid courtesy switch (fuel lid lock with motor assembly).

OK

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NG

6.

INSPECT FUEL LID LOCK WITH MOTOR ASSEMBLY (FUEL LID COURTESY SWITCH)

(a) Remove the fuel lid lock with motor assembly.

Click here 2020 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 -        ]; DOOR / HATCH: FUEL LID OPENER MOTOR ASSEMBLY: REMOVAL

(b) Inspect the fuel lid lock with motor assembly.

Click here 2020 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 -        ]; DOOR / HATCH: FUEL LID OPENER MOTOR ASSEMBLY: INSPECTION

NG

REPLACE FUEL LID LOCK WITH MOTOR ASSEMBLY

OK

7.

CHECK HARNESS AND CONNECTOR (FUEL LID LOCK WITH MOTOR ASSEMBLY - ECM)

(a) Disconnect the A46 ECM connector.

(b) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

O135-3 (B) - A46-43 (LIDO)

Always

Below 1 Ω

O135-3 (B) or A46-43 (LIDO) - Body ground

Always

10 kΩ or higher
OK

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NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

8.

INSPECT FUEL LID OPENER SWITCH

(a) Remove the fuel lid opener switch.

Click here 2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 - 09/2022]; DOOR / HATCH: FUEL LID OPENER SWITCH: REMOVAL

(b) Inspect the fuel lid opener switch.

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NG

REPLACE FUEL LID OPENER SWITCH

OK

9.

CHECK HARNESS AND CONNECTOR (FUEL LID OPENER SWITCH - ECM AND BODY GROUND)

(a) Disconnect the A46 ECM connector.

(b) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

I142-5 (IG) - A46-42 (FUEL)

Always

Below 1 Ω

I142-5 (IG) or A46-42 (FUEL) - Body ground

Always

10 kΩ or higher

I142-2 (E) - Body ground

Always

Below 1 Ω
OK

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NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

10.

INSPECT FUEL LID LOCK WITH MOTOR ASSEMBLY (MOTOR OPERATION)

(a) Remove the fuel lid lock with motor assembly.

Click here 2020 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 -        ]; DOOR / HATCH: FUEL LID OPENER MOTOR ASSEMBLY: REMOVAL

(b) Inspect the fuel lid lock with motor assembly.

Click here 2020 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 -        ]; DOOR / HATCH: FUEL LID OPENER MOTOR ASSEMBLY: INSPECTION

NG

REPLACE FUEL LID LOCK WITH MOTOR ASSEMBLY

OK

11.

CHECK HARNESS AND CONNECTOR (FUEL LIC LOCK WITH MOTOR ASSEMBLY - BODY GROUND)

(a) Measure the voltage according to the value(s) in the table below.

Standard Voltage:

Tester Connection

Condition

Specified Condition

O135-2 (E) - Body ground

Power switch on (IG)

11 to 14 V
NG

REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

12.

CHECK HARNESS AND CONNECTOR (NO. 3 RELAY BLOCK ASSEMBLY - AUXILIARY BATTERY)

(a) Remove the FUEL OPN relay from the No. 3 relay block assembly.

*1

No. 3 Relay Block Assembly

(b) Measure the voltage according to the value(s) in the table below.

Standard Voltage:

Tester Connection

Condition

Specified Condition

FUEL OPN relay holder terminal-1 - Body ground

Power switch off

11 to 14 V

FUEL OPN relay holder terminal-5 - Body ground

Power switch off

11 to 14 V
NG

REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

13.

INSPECT FUEL OPN RELAY

(a) Remove the FUEL OPN relay from No. 3 relay block assembly.

Click here

(b) Inspect the FUEL OPN relay.

(1) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

3 - 4

Auxiliary battery voltage applied between terminals 1 and 2

10 kΩ or higher

3 - 4

Auxiliary battery voltage not applied between terminals

Below 1 Ω

3 - 5

Auxiliary battery voltage applied between terminals 1 and 2

Below 1 Ω

3 - 5

Auxiliary battery voltage not applied between terminals

10 kΩ or higher

4 - 5

Always

10 kΩ or higher
NG

REPLACE FUEL OPN RELAY
OK

14.

CHECK HARNESS AND CONNECTOR (NO. 3 RELAY BLOCK ASSEMBLY - ECM)

(a) Disconnect the A46 ECM connector.

(b) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

FUEL OPN relay holder terminal-2 - A46-59 (FREL)

Always

Below 1 Ω

FUEL OPN relay holder terminal-2 or A46-59 (FREL) - Body ground

Always

10 kΩ or higher
NG

REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

15.

CHECK HARNESS AND CONNECTOR (NO. 3 RELAY BLOCK ASSEMBLY - FUEL LID LOCK WITH MOTOR ASSEMBLY)

(a) Disconnect the 4H No. 3 relay block assembly connector.

(b) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

FUEL OPN relay holder terminal-3 - O135-1 (B)

Always

Below 1 Ω

FUEL OPN relay holder terminal-3 or O135-1 (B) - Body ground

Always

10 kΩ or higher

O135-2 (E) - Body ground

Always

Below 1 Ω
NG

REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

16.

CHECK HARNESS AND CONNECTOR (ECM - FUEL LID LOCK WITH MOTOR ASSEMBLY)

(a) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

A46-43 (LIDO) - O135-3 (B)

Always

Below 1 Ω

A46-43 (LIDO) or O135-3 (B) - Body ground

Always

10 kΩ or higher
OK

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NG

REPAIR OR REPLACE HARNESS OR CONNECTOR