| Last Modified: 07-31-2024 | 6.11:8.1.0 | Doc ID: RM100000001HE64 |
| Model Year Start: 2020 | Model: GR Corolla | Prod Date Range: [01/2019 - 09/2022] |
| Title: THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Entry Function, Gasoline Model): Front Passenger Side Door Entry Lock Function does not Operate; 2020 - 2022 MY Corolla Corolla Hatchback GR Corolla [01/2019 - 09/2022] | ||
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Front Passenger Side Door Entry Lock Function does not Operate |
DESCRIPTION
If the entry lock function does not operate for the front passenger door only, but the entry unlock function operates, the request code is being transmitted properly from the for passenger door. In this case, there may be a problem related to the lock sensor (connection between the certification ECU (smart key ECU assembly) and front door outside handle assembly (for front passenger door)).
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 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 - 2022 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 09/2022]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Entry Function, Gasoline Model): HOW TO PROCEED WITH TROUBLESHOOTING](/t3Portal/stylegraphics/info.gif)
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Before replacing the certification ECU (smart key ECU assembly), refer to Precaution.
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.
except Sedan: Click here
for Sedan: Click here
OK:
Door locks operate normally.
| NG |
|
GO TO POWER DOOR LOCK CONTROL SYSTEM except Sedan: Click here
for Sedan: Click here
|
|
|
2. |
CHECK ENTRY OPERATION |
(a) Check that the entry lock function.
|
(1) Turn the engine switch off. |
|
(2) Open and close the front passenger door.
(3) 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 front passenger door.
(4) Touch the lock sensor of the front door outside handle assembly (groove on the front door outside handle) with 2 or more fingers for 2 seconds or more.
HINT:
- If the door does not lock even when touching the lock sensor for 2 seconds or more, touch it with your palm.
- When checking the operation of the lock sensor again, make sure to perform the procedure from step (1).
- 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.
|
Result |
Proceed to |
|---|---|
|
Entry function does not operate normally |
A |
|
Entry function operates normally |
B |
| B |
|
|
|
3. |
READ VALUE USING TECHSTREAM (P-DOOR TRIGGER SWITCH) |
|
(a) Turn the engine switch off. |
|
(b) Connect the Techstream to the DLC3.
(c) Turn the engine switch on (IG).
(d) Turn the Techstream on.
(e) Open and close the front passenger door.
(f) 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 front passenger door.
(g) Read the Data List according to the display on the Techstream.
(h) Touch the lock sensor of the front door outside handle assembly (groove on the front door outside handle) with 2 or more fingers for 2 seconds or more.
HINT:
- If the door does not lock even when touching the lock sensor for 2 seconds or more, touch it with your palm.
- When checking the operation of the lock sensor again, make sure to perform the procedure from step (a).
- 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.
Body Electrical > Smart Key > Data List
|
Tester Display |
Measurement Item |
Range |
Normal Condition |
Diagnostic Note |
|---|---|---|---|---|
|
P-Door Trigger Switch |
Front passenger door touch sensor (lock sensor) |
OFF or ON |
OFF: Front passenger door touch sensor (lock sensor) not touched ON: Front passenger door touch sensor (lock sensor) touched |
|
Body Electrical > Smart Key > Data List
|
Tester Display |
|---|
|
P-Door Trigger Switch |
OK:
The Techstream display changes correctly in response to the operation of the front door outside handle assembly (for front passenger door).
| OK |
|
REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)
|
|
|
4. |
CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - FRONT DOOR OUTSIDE HANDLE ASSEMBLY (FOR FRONT PASSENGER DOOR)) |
(a) Disconnect the O61 certification ECU (smart key ECU assembly) connector.
(b) Disconnect the K3 front door outside handle assembly (for front passenger door) connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
O61-4 (CLG2) - K3-6 (ANT1) |
Always |
Below 1 Ω |
|
O61-3 (CG2B) - K3-4 (ANT2) |
Always |
Below 1 Ω |
|
O61-4 (CLG2) or K3-6 (ANT1) - Other terminals and body ground |
Always |
10 kΩ or higher |
|
O61-3 (CG2B) or K3-4 (ANT2) - Other terminals and body ground |
Always |
10 kΩ or higher |
(d) Reconnect the K3 front door outside handle assembly (for front passenger door) connector.
(e) Reconnect the O61 certification ECU (smart key ECU assembly) connector.
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
5. |
READ VALUE USING TECHSTREAM (P-DOOR TRIGGER SWITCH) |
|
(a) Turn the engine switch off. |
|
(b) Connect all connectors.
(c) Connect the Techstream to the DLC3.
(d) Turn the engine switch on (IG).
(e) Turn the Techstream on.
(f) Open and close the front passenger door.
(g) 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 front passenger door.
(h) Read the Data List according to the display on the Techstream.
(i) Touch the lock sensor of the front door outside handle assembly (groove on the front door outside handle) with 2 or more fingers for 2 seconds or more.
HINT:
- If the door does not lock even when touching the lock sensor for 2 seconds or more, touch it with your palm.
- When checking the operation of the lock sensor again, make sure to perform the procedure from step (a).
- 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.
Body Electrical > Smart Key > Data List
|
Tester Display |
Measurement Item |
Range |
Normal Condition |
Diagnostic Note |
|---|---|---|---|---|
|
P-Door Trigger Switch |
Front passenger door touch sensor (lock sensor) |
OFF or ON |
OFF: Front passenger door touch sensor (lock sensor) not touched ON: Front passenger door touch sensor (lock sensor) touched |
|
Body Electrical > Smart Key > Data List
|
Tester Display |
|---|
|
P-Door Trigger Switch |
OK:
The Techstream display changes correctly in response to the operation of the front door outside handle assembly (for front passenger door).
| OK |
|
END (CONNECTOR WAS NOT CONNECTED SECURELY) |
| NG |
|
REPLACE FRONT DOOR OUTSIDE HANDLE ASSEMBLY (FOR FRONT PASSENGER DOOR)
|
|
|