Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM1000000026DYJ
Model Year Start: 2023 Model: GR Corolla Prod Date Range: [09/2022 - 11/2022]
Title: THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function (Gasoline Model, except TMMMS Made)): PROBLEM SYMPTOMS TABLE; 2023 MY Corolla Corolla Hatchback GR Corolla [09/2022 - 11/2022]

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 the system before inspecting the suspected areas below.
  • If the problem occurs in certain locations or times of day, the possibility of wave interference is high.
  • If a malfunction occurred after optional components were installed by the dealer, check if there is wave interference from the components.

Smart Key System (for Start Function)

Symptom

Suspected Area

Link

Power source mode does not change to ON or ACC

Smart key system (for Entry Function)

2023 MY Corolla Corolla Hatchback GR Corolla [09/2022 - 11/2022]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function (Gasoline Model, except TMMMS Made)): Power Source Mode does not Change to ON (IG and ACC)

Wireless charging system*1

Affected by wave interference

Transmitter battery

Electrical key transmitter sub-assembly

No. 1 indoor electrical key antenna assembly (front floor)

No. 2 indoor electrical key antenna assembly (inside luggage compartment)*2*3

No. 3 indoor electrical key antenna assembly (inside luggage compartment)*2*4

Engine switch

Wire harness or connector

Power distribution box assembly

Certification ECU (Smart key ECU assembly)

Power source mode does not change to ON

Wire harness or connector

2023 MY Corolla Corolla Hatchback GR Corolla [09/2022 - 11/2022]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function (Gasoline Model, except TMMMS Made)): Power Source Mode does not Change to ON (IG)

Relay

Power distribution box assembly

Certification ECU (Smart key ECU assembly)

Power source mode does not change to ACC

Wire harness or connector

2023 MY Corolla Corolla Hatchback GR Corolla [09/2022 - 11/2022]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function (Gasoline Model, except TMMMS Made)): Power Source Mode does not Change to ON (ACC)

Relay

Power distribution box assembly

Certification ECU (Smart key ECU assembly)

Only +BA power source mode does not operate correctly

Smart key system (for Entry Function)

2023 MY Corolla Corolla Hatchback GR Corolla [09/2022 - 11/2022]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function (Gasoline Model, except TMMMS Made)): HOW TO PROCEED WITH TROUBLESHOOTING

Wireless door lock control system

2023 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 - 11/2022]; DOOR LOCK: WIRELESS DOOR LOCK CONTROL SYSTEM (for TMC Made with Smart Key System): HOW TO PROCEED WITH TROUBLESHOOTING

Power door lock control system

2023 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 - 11/2022]; DOOR LOCK: POWER DOOR LOCK CONTROL SYSTEM (for TMC Made): HOW TO PROCEED WITH TROUBLESHOOTING

Power distribution box assembly

2023 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 - 11/2022]; POWER DISTRIBUTION: MAIN BODY ECU: REMOVAL

Engine does not start

SFI system

2023 MY Corolla Corolla Hatchback GR Corolla [09/2022 - 11/2022]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function (Gasoline Model, except TMMMS Made)): Engine does not Start

Steering lock function*5

Immobiliser function

Wire harness or connector

Relay

Clutch switch assembly*5

Park/neutral position switch assembly*6

Electrical key transmitter sub-assembly

Shift lock control unit assembly*6

Stop light switch assembly*6

Certification ECU (Smart key ECU assembly)

New key cannot be registered

LIN communication system

2023 MY Corolla Corolla Hatchback GR Corolla [09/2022 - 11/2022]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function (Gasoline Model, except TMMMS Made)): New Key cannot be Registered

Meter / gauge system

Reregistration

Electrical key transmitter sub-assembly

Steering lock ECU (steering lock actuator or upper bracket assembly)*5

ID code box (Immobiliser code ECU)

Certification ECU (Smart key ECU assembly)

Additional key cannot be registered

Smart key system (for Start Function)

2023 MY Corolla Corolla Hatchback GR Corolla [09/2022 - 11/2022]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function (Gasoline Model, except TMMMS Made)): Additional Key cannot be Registered

Steering lock function*5

Electrical key transmitter sub-assembly

ID code box (Immobiliser code ECU)

Certification ECU (Smart key ECU assembly)

New key registration warning message is not displayed

Lighting system (int)

2023 MY Corolla Corolla Hatchback GR Corolla [09/2022 - 11/2022]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function (Gasoline Model, except TMMMS Made)): New Key Registration Warning Message is not Displayed

Meter / gauge system

Certification ECU (Smart key ECU assembly)

Unable to unlock steering wheel (Engine cannot start)*5

Wire harness or connector

2023 MY Corolla Corolla Hatchback GR Corolla [09/2022 - 11/2022]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function (Gasoline Model, except TMMMS Made)): Unable to Unlock Steering Wheel (Engine cannot Start)

Steering lock ECU (steering lock actuator or upper bracket assembly)

ID code box (Immobiliser code ECU)

Certification ECU (Smart key ECU assembly)

Steering lock does not lock*5

Lighting system (int)

2023 MY Corolla Corolla Hatchback GR Corolla [09/2022 - 11/2022]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function (Gasoline Model, except TMMMS Made)): Steering Lock does not Lock

Wire harness or connector

Steering lock ECU (steering lock actuator or upper bracket assembly)

ID code box (Immobiliser code ECU)

Certification ECU (Smart key ECU assembly)

Security indicator light does not blink

Wire harness or connector

2023 MY Corolla Corolla Hatchback GR Corolla [09/2022 - 11/2022]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function (Gasoline Model, except TMMMS Made)): Security Indicator Light Does not Blink

Security indicator light (air conditioning control assembly)

Main body ECU (Multiplex network body ECU)

Certification ECU (Smart key ECU assembly)

Immobiliser system does not operate properly

Communication ID registration was defective

2023 MY Corolla Corolla Hatchback GR Corolla [09/2022 - 11/2022]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function (Gasoline Model, except TMMMS Made)): Immobiliser System does not Operate Properly

SFI system

Wire harness or connector

ID code box (Immobiliser code ECU)

ECM

System malfunction message is displayed on the multi-information display

Smart key system (for Entry Function)

2023 MY Corolla Corolla Hatchback GR Corolla [09/2022 - 11/2022]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function (Gasoline Model, except TMMMS Made)): System Malfunction Message is Displayed on the Multi-information Display

Smart key system (for Start Function)

Steering lock ECU (steering lock actuator or upper bracket assembly)*5

Certification ECU (Smart key ECU assembly)

Clutch switch assembly*5

Electronically controlled brake system
  • *1: w/ Wireless Charging System
  • *2: except Sedan
  • *3: for G16E-GTS
  • *4: except G16E-GTS
  • *5: for Manual Transaxle
  • *6: except Manual Transaxle