| Last Modified: 05-13-2024 | 6.11:8.1.0 | Doc ID: RM100000001HAJR |
| Model Year Start: 2020 | Model: Corolla | Prod Date Range: [01/2019 - 09/2022] |
| Title: DOOR LOCK: POWER DOOR LOCK CONTROL SYSTEM (for Sedan, HV Model): Improper Operation; 2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022] | ||
|
Improper Operation |
DESCRIPTION
In cases where the doors locked or unlocked by themselves even though a door lock or unlock operation was not performed, a vehicle malfunction, accidental operation by the customer or a passenger, or environmental factors should all be considered as a possible cause. By using the operation history, the possible causes of the malfunction can be narrowed down, enabling the problem to be solved by repair or replacement, or by explaining to the customer how environmental factors affect the operation.
CAUTION / NOTICE / HINT
NOTICE:
- If the vehicle or vehicle controls are operated (for example, during initial inspection when the vehicle is brought in for repair) before operation history has been read and saved, the operation history information could be lost.
- The operation history function uses the current system time of the Techstream and the time counter inside the controlling ECU to calculate the times shown in the operation history. For this reason, before reading the operation history, first make sure that the Techstream system clock is accurately set to the current time.
PROCEDURE
|
1. |
CONFIRM VEHICLE CONDITION |
(a) Confirm the vehicle symptoms.
|
Result |
Proceed to |
|---|---|
|
Doors locked unintentionally |
A |
|
Doors unlocked unintentionally |
B |
| B |
|
|
|
2. |
CHECK LOCK OPERATION HISTORY |
(a) Use the Techstream to check the door lock operation history around the time the customer reported the malfunction to have occurred.
(1) Connect the Techstream to the DLC3.
(2) Turn the power switch on (IG).
(3) Turn the Techstream on.
(4) Enter the following menus: Body Electrical / Main Body / Utility / Operation History.
Body Electrical > Main Body > Utility
|
Tester Display |
|---|
|
Operation History |
(5) Read the Operation History according to the display on the Techstream.
(6) Check if there is operation history around the time that the customer reported the malfunction to have occurred, and perform an operation check.
Click here
![2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; DOOR LOCK: POWER DOOR LOCK CONTROL SYSTEM (for Sedan, HV Model): OPERATION CHECK](/t3Portal/stylegraphics/info.gif)
|
Result |
Proceed to |
|---|---|
|
There is operation history around the time that the customer reported the malfunction to have occurred, but a malfunction could not be identified during the operation check. |
A |
|
There is operation history around the time that the customer reported the malfunction to have occurred, and the malfunction was identified during the operation check. |
B |
|
There is no operation history around the time that the customer reported the malfunction to have occurred. |
C |
| B |
|
END (VEHICLE MALFUNCTION) |
| C |
|
|
|
3. |
INTERVIEW THE CUSTOMER |
(a) If the problem symptoms could not be reproduced, explain to the customer the details of the door lock operation history such as the signal timings of the multiplex network master switch assembly, key, etc.
Click here
OK:
Cause was identified
| OK |
|
END |
| NG |
|
|
4. |
CHECK UNLOCK OPERATION HISTORY |
(a) Use the Techstream to check the door unlock operation history around the time the customer reported the malfunction to have occurred.
(1) Connect the Techstream to the DLC3.
(2) Turn the power switch on (IG).
(3) Turn the Techstream on.
(4) Enter the following menus: Body Electrical / Main Body / Utility / Operation History.
Body Electrical > Main Body > Utility
|
Tester Display |
|---|
|
Operation History |
(5) Read the Operation History according to the display on the Techstream.
(6) Check if there is operation history around the time that the customer reported the malfunction to have occurred, and perform an operation check.
Click here
|
Result |
Proceed to |
|---|---|
|
There is no operation history around the time that the customer reported the malfunction to have occurred. |
A |
|
There is operation history around the time that the customer reported the malfunction to have occurred, but a malfunction could not be identified during the operation check. |
|
|
There is operation history around the time that the customer reported the malfunction to have occurred, and the malfunction was identified during the operation check. |
B |
| A |
|
| B |
|
END |
|
5. |
CHECK UNLOCK OPERATION HISTORY |
(a) Use the Techstream to check the door unlock operation history around the time the customer reported the malfunction to have occurred.
(1) Connect the Techstream to the DLC3.
(2) Turn the power switch on (IG).
(3) Turn the Techstream on.
(4) Enter the following menus: Body Electrical / Main Body / Utility / Operation History.
Body Electrical > Main Body > Utility
|
Tester Display |
|---|
|
Operation History |
(5) Read the Operation History according to the display on the Techstream.
(6) Check if there is operation history around the time that the customer reported the malfunction to have occurred, and perform an operation check.
Click here
|
Result |
Proceed to |
|---|---|
|
There is operation history around the time that the customer reported the malfunction to have occurred, but a malfunction could not be identified during the operation check. |
A |
|
There is operation history around the time that the customer reported the malfunction to have occurred, and the malfunction was identified during the operation check. |
B |
|
There is no operation history around the time that the customer reported the malfunction to have occurred. |
C |
| B |
|
END |
| C |
|
|
|
6. |
INTERVIEW THE CUSTOMER |
(a) If the problem symptoms could not be reproduced, explain to the customer the details of the door lock operation history such as the signal timings of the multiplex network master switch assembly, key, etc.
Click here
OK:
Cause was identified
| OK |
|
END |
| NG |
|
|
7. |
CHECK LOCK OPERATION HISTORY |
(a) Use the Techstream to check the door lock operation history around the time the customer reported the malfunction to have occurred.
(1) Enter the following menus: Body Electrical / Main Body / Utility / Operation History.
Body Electrical > Main Body > Utility
|
Tester Display |
|---|
|
Operation History |
(2) Read the Operation History according to the display on the Techstream.
(3) Check if there is operation history around the time that the customer reported the malfunction to have occurred, and perform an operation check.
Click here
|
Result |
Proceed to |
|---|---|
|
There is no operation history around the time that the customer reported the malfunction to have occurred. |
A |
|
There is operation history around the time that the customer reported the malfunction to have occurred, but a malfunction could not be identified during the operation check. |
|
|
There is operation history around the time that the customer reported the malfunction to have occurred, and the malfunction was identified during the operation check. |
B |
| A |
|
| B |
|
END |
|
|