Last Modified: 05-13-2024 |
6.11:8.1.0 |
Doc ID: RM100000001HE5Z |
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 Unlock Function does not Operate; 2020 - 2022 MY Corolla Corolla Hatchback GR Corolla [01/2019 - 09/2022] |
Front Passenger Side Door Entry Unlock Function does not Operate
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DESCRIPTION
If the entry unlock function does not operate for the front passenger door only, but the entry lock function operates, the request code is being transmitted properly from the front passenger 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 (for front passenger door)).
WIRING DIAGRAM
CAUTION / NOTICE / HINT
PROCEDURE
1.
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CHECK POWER DOOR LOCK CONTROL SYSTEM
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(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 |
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GO TO POWER DOOR LOCK CONTROL SYSTEM
except Sedan: Click here
for Sedan: Click here
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OK
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(a) Check that the entry unlock function.
(1) Turn the engine switch off.
(2) Open and close the front passenger door.
(3) 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.
(4) 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.
(5) Check that the LED of the electrical key transmitter sub-assembly blinks.
(6) Touch the unlock sensor on the backside of the front door outside handle assembly (for front passenger door) for 2 seconds or more.*
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*: Perform this step 3 seconds or more after performing step (3).
HINT:
When checking the operation of the unlock sensor again, make sure to perform the procedure from step (1).
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*a
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Unlock Sensor (Backside)
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Result
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Proceed to
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Entry function does not operate normally
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A
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Entry function operates normally
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B
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A
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3.
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READ VALUE USING TECHSTREAM (FR DOOR LOCK POS)
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(a) Connect the Techstream to the DLC3.
(b) Turn the engine 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
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Measurement Item
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Range
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Normal Condition
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Diagnostic Note
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FR Door Lock Pos
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Front door RH unlock detection switch signal
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UNLOCK or LOCK
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UNLOCK: Front door RH unlocked
LOCK: Front door RH locked
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-
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Body Electrical > Main Body > Data List
Tester Display
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FR Door Lock Pos
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OK:
The Techstream display changes correctly in response to the lock/unlock operation of the front passenger door.
OK
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4.
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READ VALUE USING TECHSTREAM (P-DOOR TOUCH SENSOR)
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(a) Turn the engine switch off.
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*a
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Unlock Sensor (Backside)
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|
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(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) 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.
(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) Check that the LED of the electrical key transmitter sub-assembly blinks.
(i) Read the Data List according to the display on the Techstream.
(j) Touch the unlock sensor on the backside of the front door outside handle assembly (for front passenger door) for 2 seconds or more.*
-
*: Perform this step 3 seconds or more after performing step (f).
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
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Measurement Item
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Range
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Normal Condition
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Diagnostic Note
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P-Door Touch Sensor
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Front passenger door touch sensor (unlock sensor)
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OFF or ON
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OFF: Front passenger door touch sensor (unlock sensor) not touched
ON: Front passenger door touch sensor (unlock sensor) touched
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-
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.
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Body Electrical > Smart Key > Data List
Tester Display
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P-Door Touch Sensor
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OK:
The Techstream display changes correctly in response to the operation of the front door outside handle assembly (for front passenger door).
NG
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|
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5.
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CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - FRONT DOOR OUTSIDE HANDLE ASSEMBLY (FOR FRONT PASSENGER DOOR))
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(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
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Condition
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Specified Condition
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O61-4 (CLG2) - K3-6 (ANT1)
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Always
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Below 1 Ω
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O61-3 (CG2B) - K3-4 (ANT2)
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Always
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Below 1 Ω
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O61-4 (CLG2) or K3-6 (ANT1) - Other terminals and body ground
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Always
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10 kΩ or higher
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O61-3 (CG2B) or K3-4 (ANT2) - Other terminals and body ground
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Always
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10 kΩ or higher
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(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 |
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REPAIR OR REPLACE HARNESS OR CONNECTOR
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OK
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6.
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READ VALUE USING TECHSTREAM (P-DOOR TOUCH SENSOR)
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(a) Turn the engine switch off.
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*a
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Unlock Sensor (Backside)
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|
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(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) 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.
(h) 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.
(i) Check that the LED of the electrical key transmitter sub-assembly blinks.
(j) Read the Data List according to the display on the Techstream.
(k) Touch the unlock sensor on the backside of the front door outside handle assembly (for front passenger door) for 2 seconds or more.*
-
*: Perform this step 3 seconds or more after performing step (g).
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
|
P-Door Touch Sensor
|
Front passenger door touch sensor (unlock sensor)
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OFF or ON
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OFF: Front passenger door touch sensor (unlock sensor) not touched
ON: Front passenger 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
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P-Door Touch Sensor
|
OK:
The Techstream display changes correctly in response to the operation of the front door outside handle assembly (for front passenger door).
OK |
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END (CONNECTOR WAS NOT CONNECTED SECURELY)
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