- Engine switch off
- Electrical key transmitter sub-assembly brought outside vehicle
- All doors closed
-
All doors locked through wireless operation
(electrical key transmitter sub-assembly brought outside detection area*)
- Rear door LH lock sensor touched
| Last Modified: 01-30-2024 | 6.11:8.1.0 | Doc ID: RM100000001G1ZX |
| Model Year Start: 2019 | Model: RAV4 | Prod Date Range: [11/2018 - ] |
| Title: THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Entry Function, Gasoline Model): Rear Door LH Entry Lock Function does not Operate; 2019 - 2024 MY RAV4 [11/2018 - ] | ||
|
Rear Door LH Entry Lock Function does not Operate |
DESCRIPTION
If the entry lock function does not operate for the rear door LH only, but the entry unlock function operates, the request code is being transmitted properly from the rear door LH. In this case, there may be a problem related to the lock sensor (connection between the certification ECU (smart key ECU assembly) and rear door outside handle assembly LH).
WIRING DIAGRAM
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
![2019 - 2020 MY RAV4 [11/2018 - 08/2020]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, Gasoline Model): HOW TO PROCEED WITH TROUBLESHOOTING](/t3Portal/stylegraphics/info.gif)
-
Before replacing the certification ECU (smart key ECU assembly), refer to Registration.
Click here
- 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
OK:
Door locks operate normally.
| NG |
|
|
|
2. |
READ VALUE USING TECHSTREAM (DR-DOOR TRIGGER SWITCH) |
|
(a) Turn the engine switch off. |
|
(b) Turn the engine switch on (IG).
(c) Open and close the rear door LH.
(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 rear door LH.
(e) Enter the following menus: Body Electrical / Smart Key / Data List.
(f) Read the Data List according to the display on the Techstream.
(g) Touch the lock sensor of the rear door outside handle assembly LH.
HINT:
- If the door does not lock even when touching the lock sensor, touch it with your palm.
- When checking the operation of the lock 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 |
|---|---|---|---|---|
|
Dr-Door Trigger Switch |
Rear door LH touch sensor (lock sensor) |
ON or OFF |
ON: Rear door LH touch sensor (lock sensor) touched OFF: Rear door LH touch sensor (lock sensor) not touched |
|
Body Electrical > Smart Key > Data List
|
Tester Display |
|---|
|
Dr-Door Trigger Switch |
HINT:
When checking the operation of the entry lock function several times, it can be operated up to 2 times consecutively. To operate the function 3 times or more consecutively, the doors need to be unlocked once. However, this is only for the entry lock function. Other door lock operations, such as a wireless door lock operation, can be performed consecutively.
OK:
The Techstream display changes correctly in response to the operation of the rear door outside handle assembly LH.
| OK |
|
REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)
|
|
|
3. |
CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - REAR DOOR OUTSIDE HANDLE ASSEMBLY LH) |
(a) Disconnect the M7 certification ECU (smart key ECU assembly) connector.
(b) Disconnect the L6 rear 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 |
|---|---|---|
|
M7-1 (CLG3) - L6-6 (ANT1) |
Always |
Below 1 Ω |
|
M7-2 (CG3B) - L6-4 (ANT2) |
Always |
Below 1 Ω |
|
M7-1 (CLG3) or L6-6 (ANT1) - Other terminals and body ground |
Always |
10 kΩ or higher |
|
M7-2 (CG3B) or L6-4 (ANT2) - Other terminals and body ground |
Always |
10 kΩ or higher |
(d) Reconnect the L6 rear door outside handle assembly LH connector.
(e) Reconnect the M7 certification ECU (smart key ECU assembly) connector.
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
4. |
CHECK REAR DOOR OUTSIDE HANDLE ASSEMBLY LH (INPUT TO REAR DOOR LH LOCK SENSOR) |
|
*a |
Component with harness connected (Certification ECU (Smart Key ECU Assembly)) |
*b |
Waveform 1 |
|
*c |
Lock sensor not touched |
*d |
Lock sensor touched |
(a) Using an oscilloscope, check the waveform.
OK:
|
Tester Connection |
Condition |
Tool Setting |
Specified Condition |
|---|---|---|---|
|
M7-1 (CLG3) - G54-18 (E) |
Procedure: |
5 V/DIV., 40 ms/DIV. |
Pulse generation (See waveform 1) |
*: For details about the entry function detection area, refer to Operation Check.
Click here
| OK |
|
REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)
|
| NG |
|
REPLACE REAR DOOR OUTSIDE HANDLE ASSEMBLY LH
|
|
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