Last Modified: 11-20-2023 6.11:8.1.0 Doc ID: RM1000000018M4C
Model Year Start: 2018 Model: Camry Prod Date Range: [03/2017 -           ]
Title: THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Entry Function): Touching Unlock Sensor for Certain Period of Time does not Unlock All Doors; 2018 - 2024 MY Camry [03/2017 -        ]

Touching Unlock Sensor for Certain Period of Time does not Unlock All Doors

DESCRIPTION

If the entry unlock function of the driver door cannot be operated by touching and holding the unlock sensor of the driver door, but can be operated through other methods, it can be determined that the request code is being transmitted properly from the driver door. In this case, the certification ECU (smart key ECU assembly) may be malfunctioning.

CAUTION / NOTICE / HINT

NOTICE:

  • When using the Techstream with the engine 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.
  • The smart key system (for Entry 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 Entry Function) after confirming that the communication systems are functioning properly.

    Click here 2018 - 2024 MY Camry [03/2017 -        ]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Entry Function): HOW TO PROCEED WITH TROUBLESHOOTING

  • Before replacing the certification ECU (smart key ECU assembly), refer to Precaution.
  • Check that there are no electrical key transmitter sub-assemblies in the vehicle.

HINT:

Touching the unlock sensor for a certain period of time to unlock all of the doors can only be performed if the customize setting "Door Unlock Mode2" is set to "Driver".

PROCEDURE

1.

CHECK CUSTOMIZE SETTING (DOOR UNLOCK SENSOR TOUCH TIME ADJUST)

(a) Connect the Techstream to the DLC3.

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

(c) Turn the Techstream on.

(d) Enter the following menus: Customize Setting / Smart Key / Access.

Smart Key / Access

Tester Display

Description

Default

Setting

ECU

Door Unlock Sensor Touch Time Adjust

Function that sets the length of time the unlock sensor on the door outside handle assembly (for driver door) must be touched to unlock all of the doors

Middle

00:OFF,01:Short,10:Middle,11:Long

Certification ECU (Smart Key ECU Assembly)

Result

Proceed to

The customize setting is set to Short, Middle or Long

A

The customize setting is set to OFF

B

B

PERFORM CUSTOMIZE SETTING

A

2.

CHECK ENTRY UNLOCK FUNCTION (OPERATION CHECK)

(a) Turn the engine switch off.

(b) Open and close the driver door.

(c) With the electrical key transmitter sub-assembly outside of the vehicle, press the lock switch of the electrical key transmitter sub-assembly to lock all of the doors.

(d) Hold the electrical key transmitter sub-assembly at the same height as the door outside handle assembly and approximately 0.3 m (0.984 ft.) from the driver door.

(e) Check that the LED of the electrical key transmitter sub-assembly blinks.

(f) Touch and hold the unlock sensor on the door outside handle assembly (for driver door) for 2.5 seconds or more.

HINT:

When checking the operation of the unlock sensor again, make sure to perform the procedure from step (a).

*a

Unlock Sensor (Backside)

(g) Check that all of the doors unlock.

Result

Proceed to

All of the doors do not unlock

A

Any door does not unlock

B

B

GO TO POWER DOOR LOCK CONTROL SYSTEM

A

3.

CHECK POWER DOOR LOCK CONTROL SYSTEM

(a) When the door control switch on the multiplex network master switch assembly is operated, check that the doors unlock and lock according to the switch operation.

Click here 2018 - 2024 MY Camry [03/2017 -        ]; DOOR LOCK: POWER DOOR LOCK CONTROL SYSTEM: OPERATION CHECK

Result

Proceed to

The door locks operate normally

A

The door locks do not operate normally

B

A

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) 2018 MY Camry [03/2017 - 06/2017]; THEFT DETERRENT / KEYLESS ENTRY: CERTIFICATION ECU: REMOVAL 2018 - 2020 MY Camry [06/2017 - 10/2020]; THEFT DETERRENT / KEYLESS ENTRY: CERTIFICATION ECU: REMOVAL 2021 - 2024 MY Camry [10/2020 -        ]; THEFT DETERRENT / KEYLESS ENTRY: CERTIFICATION ECU: REMOVAL

B

GO TO POWER DOOR LOCK CONTROL SYSTEM