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05-1714
DIAGNOSTICS - POWER SLIDE DOOR SYSTEM 05BZE-02
JAM PROTECTION FUNCTION IS ACTIVATED WHILE POWER
SLIDE DOOR LH IS OPERATING (FOR SOME REASONS*)
* It may be caused by ill-fitting slide door, faulty touch sensor or faulty pulse sensor.
CIRCUIT DESCRIPTION
S The power slide door ECU activates the slide motor to open/close the power slide door, thus controlling
the power slide door operation. For jam and foreign object detection, the power slide door system uses
the pulse sensor built into the slide motor and the touch sensor installed in the front side of the slide
door.
S When the touch sensor comes in contact with an object while the slide door is closing, the resistance
of the touch sensor changes which is monitored by the power slide door ECU. If a change in resistance
is detected, the ECU will judge it to be a jam and foreign object detection in the direction that the power
slide door is moving and reverse slide motor rotation. The touch sensor operates only while the slide
door is closing. It does not operate while the slide door is opening.
S The pulse sensor detects changes in the operating speed of the slide door while the slide door is oper-
ating. When the sensor detects a change in the operating speed, the pulse from the sensor also
changes, which is monitored by the power slide door ECU. If there is a pulse change detected, the
ECU will judge it to be a jam and foreign object detection in the direction that the power slide door is
moving and reverse slide motor rotation.
S If a jam and foreign object detection by the touch sensor and the pulse sensor has occurred 2 or more
consecutive times and if the 2nd or most recent detection has occurred during closing, then the power
slide door ECU will cancel automated slide door operation and switch the slide door to manual opera-
tion mode (not electrically controlled). In order to return the power slide door system to normal opera-
tion mode, perform either of the following: manually close the slide door fully or press the satellite
switch for the power slide door or the power slide door control switch again (reset operation).
WIRING DIAGRAM
See page 05-1669 .
INSPECTION PROCEDURE
1 CHECK DTC
(a) Check for DTC B2224. DTC B2224 indicates a pulse sensor malfunction.
(1) Without code outputs, proceed to A.
(2) With code outputs, proceed to B.
B GO TO DTC B2224 (See page 05-1666 )
A
2 VISUALLY CHECK
(a) Check for foreign objects on the sliding area.
NG REMOVE OBSTACLES AND RE-CHECK SLIDE
OPERATION
OK
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 1897
05-1715
DIAGNOSTICS - POWER SLIDE DOOR SYSTEM
3 MANUAL OPERATION
(a) Turn off* the power slide door main switch in order to locate the area where reverse operation has been
triggered.
* OFF is the position where orange paint on the top of the switch does not appear.
(b) Move the slide door manually, and check to make sure no obstacles are present (no extra resistance)
around the reverse operation area and that the slide door smoothly operates.
NG ADJUST FITTING CONDITION OF SLIDE DOOR
(See page 75-67 )
OK
4 READ VALUE OF HAND-HELD TESTER
(a) Using the hand-held tester, check the DATA LIST for proper functioning of power slide door touch sen-
sor LH.
Standard (Power Slide Door ECU LH):
Diagnostic
Item Measurement Item/Display (Range) Normal Condition
Note
OFF: Power slide door touch sensor is free
Power slide door touch sensor
PSD TOUCH SEN ON: Power slide door touch sensor is pressed -
/OFF, ON or OPEN
OPEN: Power slide door touch sensor is opened
OK Go to step 7
NG
5 INSPECT POWER SLIDE DOOR TOUCH SENSOR LH
(a) Inspect the resistance of the sensor.
Standard:
Terminal No. Condition Specified Condition
Free Approx. 1 k
1 -2
Pressed Less than 100
Free Pressed
1 2
B67899
B58517 B68908 NG REPLACE POWER SLIDE DOOR TOUCH
SENSOR LH
OK
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 1898
05-1716
DIAGNOSTICS - POWER SLIDE DOOR SYSTEM
6 CHECK WIRE HARNESS (POWER SLIDE DOOR TOUCH SENSOR LH - POWER
SLIDE DOOR ECU LH)
Wire Harness Side (a) Disconnect the P31 sensor and P25 ECU connectors.
(b) Check the resistance between the wire harness side con-
P31 nectors.
Power Slide Door Touch Sensor LH Standard (Check for open circuit):
Terminal No. Specified Condition
P31-1 - P25-16 (OS)
Below 1
P31-2 - P25-15 (OSG)
P25
Power Slide Door ECU LH
NG REPAIR OR REPLACE HARNESS AND
B68446 CONNECTOR
OK
REPLACE POWER SLIDE DOOR ECU LH
7 PERFORM ACTIVE TEST USING HAND-HELD TESTER
(a) Select the ACTIVE TEST and then check that the power slide door control motor and clutch LH oper-
ates.
HINT:
During the ACTIVE TEST, the hand-held tester sends a signal to the power slide door ECU LH to drive the
motor and clutch. If the motor and clutch operates, the motor and clutch itself and the wire harness between
the motor and clutch and the power slide door ECU are considered to be functioning normally.
Standard (Power Slide Door ECU LH):
Item Test Details Diagnostic Note
Power slide door motor is operation
PSD MOTOR Clutch is OFF while power slide door motor is operating
OFF/FORWARD/REVERSE
Power slide door clutch is release
PSD CLUTCH Power slide door motor is OFF when clutch is ON
OFF/ON
OK REPLACE POWER SLIDE DOOR ECU LH
NG
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 1899
05-1717
DIAGNOSTICS - POWER SLIDE DOOR SYSTEM
8 INSPECT SLIDE DOOR CONTROL MOTOR & CLUTCH ASSY LH
(a) Remove the motor and clutch.
Open Close
(b) Connect the battery positive (+) lead to terminal 3 and bat-
tery negative (-) terminal lead to terminal 2.
(c) Apply battery voltage to the terminals and check the mo-
tor operation.
Standard:
Measurement Condition Specified Condition
Battery positive (+) Terminal 8
Open
Battery negative (-) Terminal 7
Battery positive (+) Terminal 7
Close
Battery negative (-) Terminal 8
(d) Check the resistance of the clutch terminals.
Standard:
Terminal No. Specified Condition
2 -3 4.0
(e) Reinstall the motor and clutch with the connector con-
nected.
B67761
(f) Check the pulse of the pulse sensor.
10 V 10 ms
(1) Using an oscilloscope, check the pulse generated
when the door is manually opened and closed.
Standard (Reference):
GND Terminal 5 - 9, 9 - 10
Tool setting 10 V/DIV., 10 ms/DIV.
Vehicle condition Door moving
HINT:
1 cycle of approx. 10 to 20 msec.
B68909 A cycle of the pulse changes between approx. 10 to 20 msec.
according to the speeds that the slide door is moving.
NOTICE:
When disconnecting the control motor and clutch, initialize the power slide door system (See page
05-1650 ).
NG REPLACE SLIDE DOOR CONTROL MOTOR &
CLUTCH ASSY LH
OK
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 1900
05-1718
DIAGNOSTICS - POWER SLIDE DOOR SYSTEM
9 CHECK WIRE HARNESS (POWER SLIDE DOOR CONTROL MOTOR AND CLUTCH
LH - POWER SLIDE DOOR ECU LH)
Wire Harness Side (a) Disconnect the P21 motor and clutch, the P25 and P26
ECU connectors.
(b) Check the resistance between the wire harness side con-
P21
nectors.
Power Slide Door Control Motor and Clutch LH
Standard (Check for open circuit):
Terminal No. Specified Condition
P21-9 - P25-23 (DSG)
P21-4 - P25-26 (DSV)
P21-5 - P25-25 (DS1)
P21-10 - P25-24 (DS2)
Below 1
P21-3 - P26-7 (CL+)
P21-2 - P26-6 (CL-)
P25
P21-8 - P26-1 (SD+)
Power Slide Door ECU LH
P21-7 - P26-3 (SD-)
P26
Power Slide Door ECU LH
NG REPAIR OR REPLACE HARNESS AND
B68440 CONNECTOR
OK
REPLACE POWER SLIDE DOOR ECU LH
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 1901
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