Last Modified: 01-30-2024 6.11:8.1.0 Doc ID: RM100000001G1YN
Model Year Start: 2019 Model: RAV4 HV Prod Date Range: [11/2018 -           ]
Title: THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Entry Function, HV Model): Driver Side Door Entry Unlock Function does not Operate; 2019 - 2024 MY RAV4 HV [11/2018 -        ]

Driver Side Door Entry Unlock Function does not Operate

DESCRIPTION

If the entry unlock function does not operate for the driver door only, but the entry lock function operates, the request code is being transmitted properly from the driver door. In this case, there may be a problem related to the unlock sensor (connection between the certification ECU (smart key ECU assembly) and front door outside handle assembly LH).

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

  • 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.
  • 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 2019 MY RAV4 HV [11/2018 - 02/2019]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, HV Model): HOW TO PROCEED WITH TROUBLESHOOTING 2019 - 2021 MY RAV4 HV [02/2019 - 12/2021]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, HV Model): HOW TO PROCEED WITH TROUBLESHOOTING 2022 - 2023 MY RAV4 HV [12/2021 - 10/2023]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, HV Model): HOW TO PROCEED WITH TROUBLESHOOTING 2024 MY RAV4 HV [10/2023 -        ]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, HV Model): HOW TO PROCEED WITH TROUBLESHOOTING

  • Before replacing the certification ECU (smart key ECU assembly), refer to Registration.

    Click here 2019 MY RAV4 HV [11/2018 - 10/2019]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, HV Model): REGISTRATION 2020 - 2021 MY RAV4 HV [10/2019 - 12/2021]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, HV Model): REGISTRATION 2022 - 2024 MY RAV4 HV [12/2021 -        ]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, HV Model): REGISTRATION

  • After repair, confirm that no DTCs are output.
  • Check that there are no electrical key transmitter sub-assemblies in the vehicle.

PROCEDURE

1.

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 2019 - 2024 MY RAV4 RAV4 HV [11/2018 -        ]; DOOR LOCK: POWER DOOR LOCK CONTROL SYSTEM: OPERATION CHECK

OK:

Door locks operate normally.

NG

GO TO POWER DOOR LOCK CONTROL SYSTEM

OK

2.

READ VALUE USING TECHSTREAM (FL DOOR LOCK POS)

(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 / Main Body / Data List.

(e) Read the Data List according to the display on the Techstream.

Body Electrical > Main Body > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

FL Door Lock Pos

Front door LH unlock detection switch signal

UNLOCK or LOCK

UNLOCK: Front door LH unlocked

LOCK: Front door LH locked

-

Body Electrical > Main Body > Data List

Tester Display

FL Door Lock Pos

OK:

The Techstream display changes correctly in response to the lock/unlock operation of the driver door.

NG

GO TO LIGHTING SYSTEM (Proceed to Door Unlock Detection Switch Circuit)

OK

3.

READ VALUE USING TECHSTREAM (D-DOOR TOUCH SENSOR)

(a) Turn the power switch off.

*a

Unlock Sensor (Backside)

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

(c) Open and close the driver door.

(d) 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.

(e) 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.

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

(g) Enter the following menus: Body Electrical / Smart Key / Data List.

(h) Read the Data List according to the display on the Techstream.

(i) Touch the unlock sensor on the backside of the front door outside handle assembly LH.

HINT:

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

Body Electrical > Smart Key > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

D-Door Touch Sensor

Driver door touch sensor (unlock sensor)

OFF or ON

OFF: Driver door touch sensor (unlock sensor) not touched

ON: Driver door touch sensor (unlock sensor) touched

  • Displays whether the unlock sensor is on or off (even if the sensor is touched and contact is maintained, "ON" is displayed only momentarily).
  • Use this Data List item to help determine if there is an unlock sensor malfunction when the entry unlock function does not operate.

Body Electrical > Smart Key > Data List

Tester Display

D-Door Touch Sensor

OK:

The Techstream display changes correctly in response to the operation of the front door outside handle assembly LH.

OK

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) 2019 MY RAV4 RAV4 HV [11/2018 - 02/2019]; THEFT DETERRENT / KEYLESS ENTRY: CERTIFICATION ECU: REMOVAL 2019 MY RAV4 RAV4 HV [02/2019 - 10/2019]; THEFT DETERRENT / KEYLESS ENTRY: CERTIFICATION ECU: REMOVAL 2020 MY RAV4 RAV4 HV [10/2019 - 08/2020]; THEFT DETERRENT / KEYLESS ENTRY: CERTIFICATION ECU: REMOVAL 2021 MY RAV4 RAV4 HV [08/2020 - 12/2021]; THEFT DETERRENT / KEYLESS ENTRY: CERTIFICATION ECU: REMOVAL 2022 MY RAV4 RAV4 HV [12/2021 - 10/2022]; THEFT DETERRENT / KEYLESS ENTRY: CERTIFICATION ECU: REMOVAL 2023 MY RAV4 RAV4 HV [10/2022 - 10/2023]; THEFT DETERRENT / KEYLESS ENTRY: CERTIFICATION ECU: REMOVAL 2024 MY RAV4 RAV4 HV [10/2023 -        ]; THEFT DETERRENT / KEYLESS ENTRY: CERTIFICATION ECU: REMOVAL

NG

4.

CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - FRONT DOOR OUTSIDE HANDLE ASSEMBLY LH)

(a) Disconnect the M7 certification ECU (smart key ECU assembly) connector.

(b) Disconnect the J8 front door outside handle assembly LH connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

M7-17 (CLG1) - J8-6 (ANT1)

Always

Below 1 Ω

M7-16 (CG1B) - J8-4 (ANT2)

Always

Below 1 Ω

M7-17 (CLG1) or J8-6 (ANT1) - Other terminals and body ground

Always

10 kΩ or higher

M7-16 (CG1B) or J8-4 (ANT2) - Other terminals and body ground

Always

10 kΩ or higher

(d) Reconnect the J8 front door outside handle assembly LH connector.

(e) Reconnect the M7 certification ECU (smart key ECU assembly) connector.

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

5.

CHECK FRONT DOOR OUTSIDE HANDLE ASSEMBLY LH (INPUT TO DRIVER DOOR UNLOCK SENSOR)

*a

Component with harness connected

(Certification ECU (Smart Key ECU Assembly))

*b

Waveform 1

*c

Unlock sensor not touched

*d

Unlock sensor touched

(a) Using an oscilloscope, check the waveform.

OK:

Tester Connection

Condition

Tool Setting

Specified Condition

M7-17 (CLG1) - G54-18 (E)

Procedure:

  1. Power switch off
  2. Electrical key transmitter sub-assembly brought outside vehicle
  3. All doors locked
  4. Electrical key transmitter sub-assembly not near the vehicle
  5. Driver door unlock sensor touched

5 V/DIV., 50 ms/DIV.

Pulse generation

(See waveform 1)

OK

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NG

REPLACE FRONT DOOR OUTSIDE HANDLE ASSEMBLY LH 2019 MY RAV4 RAV4 HV [11/2018 - 02/2019]; DOOR / HATCH: FRONT DOOR: DISASSEMBLY 2019 MY RAV4 RAV4 HV [02/2019 - 10/2019]; DOOR / HATCH: FRONT DOOR: DISASSEMBLY 2020 MY RAV4 RAV4 HV [10/2019 - 08/2020]; DOOR / HATCH: FRONT DOOR: DISASSEMBLY 2021 MY RAV4 RAV4 HV [08/2020 - 12/2021]; DOOR / HATCH: FRONT DOOR: DISASSEMBLY 2022 MY RAV4 RAV4 HV [12/2021 - 10/2022]; DOOR / HATCH: FRONT DOOR: DISASSEMBLY 2023 MY RAV4 RAV4 HV [10/2022 - 10/2023]; DOOR / HATCH: FRONT DOOR: DISASSEMBLY 2024 MY RAV4 RAV4 HV [10/2023 -        ]; DOOR / HATCH: FRONT DOOR: DISASSEMBLY