Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM100000001HWDO
Model Year Start: 2020 Model: GR Corolla Prod Date Range: [03/2019 - 09/2022]
Title: DOOR LOCK: WIRELESS DOOR LOCK CONTROL SYSTEM (w/o Smart Key System): Only Wireless Control Function is Inoperative; 2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [03/2019 - 09/2022]

Only Wireless Control Function is Inoperative

DESCRIPTION

The door control receiver receives signals from the door control transmitter assembly and sends these signals to the main body ECU (multiplex network body ECU). The main body ECU (multiplex network body ECU) then controls all doors by sending lock/unlock signals to each door, and sends hazard flasher signals to the combination meter assembly.

WIRING DIAGRAM

for 12 Pin Type

for 5 Pin Type

CAUTION / NOTICE / HINT

NOTICE:

  • Inspect the fuses for circuits related to this system before performing the following procedure.
  • When replacing or inspecting the door control receiver and wire harness, do not change the position or length of the wire harness. If the wire harness is too close to the door control receiver, wireless function performance may be affected.
  • Before replacing the door control transmitter assembly, refer to Registration.

    Click here 2020 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 - 09/2019]; THEFT DETERRENT / KEYLESS ENTRY: IMMOBILISER SYSTEM (w/o Smart Key System): REGISTRATION 2020 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2019 - 04/2020]; THEFT DETERRENT / KEYLESS ENTRY: IMMOBILISER SYSTEM (w/o Smart Key System): REGISTRATION 2021 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [04/2020 - 09/2022]; THEFT DETERRENT / KEYLESS ENTRY: IMMOBILISER SYSTEM (w/o Smart Key System): REGISTRATION

  • When replacing the door control and tire pressure monitoring system receiver assembly, read the transmitter IDs (tire pressure warning system) stored in the old ECU using the Techstream and write them down before removal.

    Click here 2020 MY Corolla Corolla Hatchback GR Corolla [01/2019 - 09/2019]; TIRE PRESSURE MONITORING: TIRE PRESSURE WARNING SYSTEM (for Gasoline Model (for Type A)): REGISTRATION 2020 - 2023 MY Corolla Corolla Hatchback GR Corolla [09/2019 - 11/2022]; TIRE PRESSURE MONITORING: TIRE PRESSURE WARNING SYSTEM (for Gasoline Model (for Type A)): REGISTRATION

  • If the door control and tire pressure monitoring system receiver assembly has been replaced, it is necessary to perform initialization (Click here 2019 - 2023 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 11/2022]; TIRE PRESSURE MONITORING: TIRE PRESSURE WARNING SYSTEM (for Gasoline Model (for Type A)): INITIALIZATION after registration (Click here 2020 MY Corolla Corolla Hatchback GR Corolla [01/2019 - 09/2019]; TIRE PRESSURE MONITORING: TIRE PRESSURE WARNING SYSTEM (for Gasoline Model (for Type A)): REGISTRATION 2020 - 2023 MY Corolla Corolla Hatchback GR Corolla [09/2019 - 11/2022]; TIRE PRESSURE MONITORING: TIRE PRESSURE WARNING SYSTEM (for Gasoline Model (for Type A)): REGISTRATION ) of the transmitter IDs to the door control and tire pressure monitoring system receiver assembly.

PROCEDURE

1.

CHECK POWER DOOR LOCK OPERATION

(a) Check the power door lock operation.

Click here 2020 - 2022 MY Corolla Corolla Hatchback GR Corolla [01/2019 - 09/2022]; DOOR LOCK: POWER DOOR LOCK CONTROL SYSTEM (for Sedan, Gasoline Model): OPERATION CHECK

OK:

Locked doors unlock.

NG

GO TO POWER DOOR LOCK CONTROL SYSTEM

OK

2.

CHECK KEY REMINDER WARNING SYSTEM

(a) Check that the key reminder warning buzzer operates properly.

Click here 2020 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 -        ]; DOOR LOCK: KEY REMINDER WARNING SYSTEM: OPERATION CHECK

OK:

Key reminder warning buzzer operates properly.

NG

GO TO KEY REMINDER WARNING SYSTEM

OK

3.

CHECK DOOR CONTROL TRANSMITTER ASSEMBLY

(a) When a known good registered door control transmitter assembly is used, check that the wireless functions operate properly.

Result

Proceed to

Wireless door lock/unlock function operates properly with a known good door control transmitter assembly

A

Wireless door lock/unlock function does not operate

B
B

GO TO STEP 5

A

4.

CHECK TRANSMITTER BATTERY (VOLTAGE)

(a) Inspect the transmitter battery capacity.

Click here 2020 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 -        ]; DOOR LOCK: DOOR CONTROL TRANSMITTER (w/o Smart Key System): INSPECTION

OK

REPLACE DOOR CONTROL TRANSMITTER ASSEMBLY
NG

REPLACE TRANSMITTER BATTERY

5.

CHECK WAVE ENVIRONMENT

(a) Bring the door control transmitter assembly near the door control receiver, and perform wireless operation check.

HINT:

  • When the door control transmitter assembly is brought near the door control receiver, the possibility of wave interference decreases, and it can be determined if wave interference is causing the problem symptom.
  • If the inspection result is that the problem only occurs in certain locations or times of day, the possibility of wave interference is high. Also, added vehicle components may cause wave interference. If installed, remove them and perform the operation check.

OK:

Wireless functions operate properly.

OK

END (AFFECTED BY WAVE INTERFERENCE)
NG

6.

CHECK SELF-DIAGNOSTIC MODE

(a) Switch to self-diagnostic mode.

Click here 2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 - 09/2022]; DOOR LOCK: WIRELESS DOOR LOCK CONTROL SYSTEM (w/o Smart Key System): DIAGNOSIS SYSTEM

(b) Check self-diagnostic mode.

Click here 2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 - 09/2022]; DOOR LOCK: WIRELESS DOOR LOCK CONTROL SYSTEM (w/o Smart Key System): DIAGNOSIS SYSTEM

Result

Proceed to

Normal pattern (interior light output pattern) is output

A

Unmatching recognition code is output

B

No diagnostic output

C
A

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

C

GO TO STEP 8

B

7.

CHECK REGISTER RECOGNITION CODE

(a) Check that the system can be switched to rewrite mode or add mode, and that a recognition code can be registered.

Click here 2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [03/2019 - 09/2022]; DOOR LOCK: WIRELESS DOOR LOCK CONTROL SYSTEM (w/o Smart Key System): REGISTRATION

OK:

Recognition code can be registered.

OK

END (GO TO OPERATION CHECK)
NG

GO TO STEP 12

8.

CHECK DOOR CONTROL RECEIVER (RESPONSE)

(a) Prepare a door control transmitter assembly from another vehicle.

(b) Press and hold a door control transmitter assembly switch.

(c) Check that an unmatching recognition code is output.

OK:

Unmatching recognition code is output.

OK

REPLACE DOOR CONTROL TRANSMITTER ASSEMBLY
NG

9.

CHECK HARNESS AND CONNECTOR (DOOR CONTROL RECEIVER - POWER SOURCE AND BODY GROUND)

(a) Disconnect the O124*1 or O70*2 door control receiver connector.

  • *1: for 12 Pin Type
  • *2: for 5 Pin Type

*A

for 12 Pin Type

*B

for 5 Pin Type

*a

Front view of wire harness connector

(to Door Control Receiver)

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

Standard Resistance:

for 12 Pin Type

Tester Connection

Condition

Specified Condition

O124-12 (GND) - Body ground

Always

Below 1 Ω

for 5 Pin Type

Tester Connection

Condition

Specified Condition

O70-1 (GND) - Body ground

Always

Below 1 Ω

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

Standard Voltage:

for 12 Pin Type

Tester Connection

Condition

Specified Condition

O124-7 (+B) - Body ground

Always

11 to 14 V

for 5 Pin Type

Tester Connection

Condition

Specified Condition

O70-5 (+B) - Body ground

Always

11 to 14 V
NG

REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

10.

CHECK DOOR CONTROL RECEIVER (OUTPUT)

(a) Reconnect the O124*1 or O70*2 door control receiver connector.

  • *1: for 12 Pin Type
  • *2: for 5 Pin Type

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

Standard Voltage:

for 12 Pin Type

Tester Connection

Condition

Specified Condition

O124-4 (RDA) - Body ground

Procedure:

  1. Remove key from ignition key cylinder
  2. Close all doors
  3. Press lock or unlock switch of door control transmitter assembly

11 to 14 V → pulse generation

for 5 Pin Type

Tester Connection

Condition

Specified Condition

O70-2 (RDA) - Body ground

Procedure:

  1. Remove key from ignition key cylinder
  2. Close all doors
  3. Press lock or unlock switch of door control transmitter assembly

11 to 14 V → pulse generation

*A

for 12 Pin Type

*B

for 5 Pin Type

*a

Component with harness connected

(Door Control Receiver)

Result

Proceed to

OK

A

NG (for 12 Pin Type)

B

NG (for 5 Pin Type)

C
B

REPLACE DOOR CONTROL AND TIRE PRESSURE MONITORING SYSTEM RECEIVER ASSEMBLY 2020 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 - 04/2020]; DOOR LOCK: DOOR CONTROL RECEIVER (for Sedan with Tire Pressure Warning System): REMOVAL 2021 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [04/2020 - 09/2022]; DOOR LOCK: DOOR CONTROL RECEIVER (for Sedan with Tire Pressure Warning System): REMOVAL

C

REPLACE DOOR CONTROL RECEIVER 2020 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 - 04/2020]; DOOR LOCK: DOOR CONTROL RECEIVER (for Sedan with Tire Pressure Warning System): REMOVAL 2021 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [04/2020 - 09/2022]; DOOR LOCK: DOOR CONTROL RECEIVER (for Sedan with Tire Pressure Warning System): REMOVAL

A

11.

CHECK HARNESS AND CONNECTOR (MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) - DOOR CONTROL RECEIVER)

(a) Disconnect the I84 main body ECU (multiplex network body ECU) connector.

(b) Disconnect the O124*1 or O70*2 door control receiver connector.

  • *1: for 12 Pin Type
  • *2: for 5 Pin Type

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

Standard Resistance:

for 12 Pin Type

Tester Connection

Condition

Specified Condition

O124-4 (RDA) - I84-10 (RDA)

Always

Below 1 Ω

O124-5 (PRG) - I84-11 (PRG)

Always

Below 1 Ω

O124-4 (RDA) or I84-10 (RDA) - Other terminals and body ground

Always

10 kΩ or higher

O124-5 (PRG) or I84-11 (PRG) - Other terminals and body ground

Always

10 kΩ or higher

for 5 Pin Type

Tester Connection

Condition

Specified Condition

O70-2 (RDA) - I84-10 (RDA)

Always

Below 1 Ω

O70-3 (PRG) - I84-11 (PRG)

Always

Below 1 Ω

O70-2 (RDA) or I84-10 (RDA) - Other terminals and body ground

Always

10 kΩ or higher

O70-3 (PRG) or I84-11 (PRG) - Other terminals and body ground

Always

10 kΩ or higher
NG

REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

12.

REPLACE DOOR CONTROL RECEIVER

(a) Temporarily replace the door control receiver with a new or known good one.

for 12 Pin Type: Click here 2020 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 - 04/2020]; DOOR LOCK: DOOR CONTROL RECEIVER (for Sedan with Tire Pressure Warning System): REMOVAL 2021 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [04/2020 - 09/2022]; DOOR LOCK: DOOR CONTROL RECEIVER (for Sedan with Tire Pressure Warning System): REMOVAL

for 5 Pin Type: Click here 2020 MY Corolla Corolla Hatchback Corolla HV GR Corolla [03/2019 - 04/2020]; DOOR LOCK: DOOR CONTROL RECEIVER (for Sedan without Tire Pressure Warning System): REMOVAL 2021 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [04/2020 - 09/2022]; DOOR LOCK: DOOR CONTROL RECEIVER (for Sedan without Tire Pressure Warning System): REMOVAL

NEXT

13.

REGISTER RECOGNITION CODE

(a) Perform the Registration procedure.

Click here 2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [03/2019 - 09/2022]; DOOR LOCK: WIRELESS DOOR LOCK CONTROL SYSTEM (w/o Smart Key System): REGISTRATION

NEXT

14.

CHECK DOOR CONTROL RECEIVER (OPERATION)

(a) Check that the doors can be locked and unlocked by the door control transmitter assembly lock and unlock switches.

OK:

Doors can be locked and unlocked by the door control transmitter assembly.

OK

END (DOOR CONTROL RECEIVER WAS DEFECTIVE)
NG

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)