Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM100000001HAMJ
Model Year Start: 2020 Model: GR Corolla Prod Date Range: [01/2019 - 03/2019]
Title: DOOR LOCK: WIRELESS DOOR LOCK CONTROL SYSTEM (w/o Smart Key System): PROBLEM SYMPTOMS TABLE; 2020 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 - 03/2019]

PROBLEM SYMPTOMS TABLE

HINT:

  • Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
  • Inspect the fuses and relays related to this system before inspecting the suspected areas below.

Wireless Door Lock Control System

Symptom

Suspected Area

Link

Only wireless control function is inoperative

Power door lock control system

2020 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 - 03/2019]; DOOR LOCK: WIRELESS DOOR LOCK CONTROL SYSTEM (w/o Smart Key System): Only Wireless Control Function is Inoperative

Key reminder warning system

Door control transmitter assembly

Transmitter battery

Wave interference

Main body ECU (Multiplex network body ECU)

Unmatching recognition code

Wire harness or connector

Door control and tire pressure monitoring system receiver assembly

Only answer-back function does not operate properly

Check customize setting

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): No Answer-Back

Perform operation check

Lighting system (Int) (Door unlock detection switch circuit)

Lighting system (Ext) (Hazard warning switch circuit)

Main body ECU (Multiplex network body ECU)

Wire harness or connector

Instrument panel junction block assembly

Wireless door lock buzzer

Only automatic lock function does not operate properly

Perform operation check

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): OPERATION CHECK

Key reminder warning system

2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 - 09/2022]; DOOR LOCK: KEY REMINDER WARNING SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING

Lighting system (Int) (Front door courtesy light switch circuit)

2020 - 2022 MY Corolla Corolla Hatchback GR Corolla [01/2019 - 09/2022]; LIGHTING (INT): LIGHTING SYSTEM (for Gasoline Model): Front Door Courtesy Switch Circuit

Lighting system (Int) (Rear door courtesy light switch circuit)

2020 - 2022 MY Corolla Corolla Hatchback GR Corolla [01/2019 - 09/2022]; LIGHTING (INT): LIGHTING SYSTEM (for Gasoline Model): Rear Door Courtesy Switch Circuit

Main body ECU (Multiplex network body ECU)

-

Only illuminated entry function does not operate

Perform operation check

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): OPERATION CHECK

Lighting system (Int)

2020 - 2022 MY Corolla Corolla Hatchback GR Corolla [01/2019 - 09/2022]; LIGHTING (INT): LIGHTING SYSTEM (for Gasoline Model): PROBLEM SYMPTOMS TABLE

Main body ECU (Multiplex network body ECU)

-

Only door ajar warning function does not operate

Wireless Door Lock Buzzer

2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 - 09/2022]; DOOR LOCK: WIRELESS DOOR LOCK BUZZER: REMOVAL

Only panic alarm function does not operate

Perform operation check

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): OPERATION CHECK

Lighting system (Int) (Interior lights)

  

Lighting system (Ext) (Headlights, taillights, hazard warning lights)*1

2019 - 2021 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 06/2021]; LIGHTING (EXT): LIGHTING SYSTEM (for Gasoline Model with AFS): OPERATION CHECK

Lighting system (Ext) (Headlights, taillights, hazard warning lights)*2

2019 - 2020 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 03/2019]; LIGHTING (EXT): LIGHTING SYSTEM (for Gasoline Model without AFS): OPERATION CHECK

Theft deterrent system (Vehicle horns, Security horn)

2020 - 2022 MY Corolla Corolla Hatchback GR Corolla [01/2019 - 09/2022]; THEFT DETERRENT / KEYLESS ENTRY: THEFT DETERRENT SYSTEM (for Gasoline Model): HOW TO PROCEED WITH TROUBLESHOOTING

Main body ECU (Multiplex network body ECU)

-

When returning to the vehicle, although door unlock operation was not performed, doors were in an unlocked state.

Power door lock control system

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

When returning to the vehicle, although door lock operation was not performed, doors were in a locked state.

Power door lock control system

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

  • *1: w/ AFS
  • *2: w/o AFS