Last Modified: 11-20-2023 |
6.11:8.1.0 |
Doc ID: RM1000000024AWI |
Model Year Start: 2023 |
Model: Camry HV |
Prod Date Range: [08/2022 -
] |
Title: THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function): Additional Key cannot be Registered; 2023 - 2024 MY Camry HV [08/2022 - ] |
Additional Key cannot be Registered
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DESCRIPTION
If additional registration is not possible, a malfunction of the electrical key transmitter sub-assembly, certification ECU (smart key ECU assembly), power switch, No. 1 indoor electrical key antenna assembly (front floor) or door control receiver is suspected.
CAUTION / NOTICE / HINT
NOTICE:
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If registration of an electrical key transmitter sub-assembly cannot be performed, refer to Registration.
Click here
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When using the Techstream with the power switch off, connect the Techstream to the DLC3 and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the Techstream and the vehicle begins. Then select the vehicle type under manual mode and enter the following menus: Body Electrical / Smart Key. While using the Techstream, periodically turn a courtesy light switch on and off at intervals of 1.5 seconds or less to maintain communication between the Techstream and the vehicle.
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The smart key system (for Start Function) uses the LIN communication system and CAN communication system. Inspect the communication function by following How to Proceed with Troubleshooting. Troubleshoot the smart key system (for Start Function) after confirming that the communication systems are functioning properly.
Click here
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Before replacing the certification ECU (smart key ECU assembly) or electrical key transmitter sub-assembly, refer to Registration.
Click here
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After repair, confirm that no DTCs are output.
HINT:
When additional registration is not possible, freeze frame data may be stored in the certification ECU (smart key ECU assembly).
Click here
PROCEDURE
(a) Check for DTCs.
Body Electrical > Smart Key > Trouble Codes
NOTICE:
If a malfunction occurs, do not remove/install the vehicle auxiliary battery before checking for DTCs.
OK:
DTCs are not output.
OK
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2.
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READ VALUE USING TECHSTREAM (UNMATCHED VEHICLE-ID)
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(a) Connect the Techstream to the DLC3.
(b) Turn the power switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Smart Key / Data List.
(e) Read the Data List according to the display on the Techstream.
Body Electrical > Smart Key > Data List
Tester Display
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Measurement Item
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Range
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Normal Condition
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Diagnostic Note
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Unmatched Vehicle-ID
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Key No. (incorrect or correct)
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No or Yes
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No: Communication normal
Yes: Communication malfunction
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The vehicle ID registered in the vehicle and the vehicle ID registered in the electrical key transmitter sub-assembly are different (if a key from another vehicle is brought into the vehicle exterior detection area while the doors are locked, "Yes" is displayed for "Unmatched Vehicle-ID" in the Data List).
Other potential causes:
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An electrical key transmitter sub-assembly from a different vehicle is being used.
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A communication error due to wave interference.
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The electrical key transmitter sub-assembly or certification ECU (smart key ECU assembly) is malfunctioning.
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Body Electrical > Smart Key > Data List
Tester Display
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Unmatched Vehicle-ID
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Result
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Proceed to
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"No" is displayed
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A
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"Yes" is displayed
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B
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A
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3.
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CHECK SMART KEY SYSTEM (for Start Function)
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(a) Remove the transmitter battery from the electrical key transmitter sub-assembly.
(b) With the brake pedal depressed, hold the electrical key transmitter sub-assembly near the power switch and check if the power source mode changes.
OK:
The power source mode changes.
HINT:
If the power source mode changes, the cabin verification is malfunctioning.
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*1
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Power Switch
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*2
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Electrical Key Transmitter Sub-assembly
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Result
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Proceed to
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The power source mode changes
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A
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The power source mode does not change
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B
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A
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(a) Using an unregistered electrical key transmitter sub-assembly, perform the additional registration procedure.
Click here
OK:
Additional registration can be completed.
OK |
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REPLACE ELECTRICAL KEY TRANSMITTER SUB-ASSEMBLY (FIRST REGISTERED KEY WAS DEFECTIVE)
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NG
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5.
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REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)
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(a) Temporarily replace the certification ECU (smart key ECU assembly) with a new one and register the electrical key transmitter sub-assemblies.
HINT:
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For replacement.
Click here
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For registration.
Click here
OK:
All of the electrical key transmitter sub-assemblies could be registered to the new certification ECU (smart key ECU assembly) successfully.
OK |
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END (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) WAS DEFECTIVE)
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