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05-1804
DIAGNOSTICS - WIRELESS DOOR LOCK CONTROL SYSTEM 059TR-02
ONLY WIRELESS CONTROL FUNCTION DOES NOT OPERATE
(PREPARE NEW OR NORMAL TRANSMITTER OF THE SAME
TYPE VEHICLE)
CIRCUIT DESCRIPTION
The door control receiver receives a signal from the transmitter and sends this signal to the multiplex network
body ECU. Then, the multiplex network body ECU controls operation of the door locks and power windows.
Then, the power slide door ECU causes the power slide door to open or close when it receives a signal from
the transmitter via the door control receiver and multiplex network body body ECU. Also, the power back
door ECU causes the power back door to open or close when it receives a signal from the transmitter via
the door control receiver and multiplex network body ECU.
WIRING DIAGRAM
Instrument Panel J/B Assy
D4
Door Control Receiver Multiplex Network
Body ECU
11
3 GR
PRG B9 PRG
12
W-B 1 2 P-L
GND RDA B9 RDA
5 W-L To
+B
Battery
31 K4
J20 Un-lock Warning J18
J/C Switch Assy J/C 21
42 L-B
1 2 L-B 80 70
B6 KSW
W-B J18
W-B J/C
21 1
W-B
IG IE
B68680
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 1987
05-1805
DIAGNOSTICS - WIRELESS DOOR LOCK CONTROL SYSTEM
INSPECTION PROCEDURE
1 CHECK WIRELESS DOOR LOCK CONTROL FUNCTIONS (See page 73-1 1)
OK NORMAL
NG
2 REPLACE TRANSMITTER BATTERY WITH NORMAL ONE
(a) After replacing the transmitter battery with a new or normal one, check that the doors can lock and
unlock, using the transmitter LOCK/UNLOCK switch.
OK REPLACE TRANSMITTER BATTERY
NG
3 CHECK WIRELESS DOOR LOCK CONTROL FUNCTIONS (STANDARD OPERA-
TION)
(a) Using the transmitter to LOCK/UNLOCK doors in standard operation, check that the doors can lock
and unlock.
NOTICE:
Standardized test procedure: Press the transmitter switch for 1 second, directing the beam to driv-
er's door outside handle from a distance of 1 m (39.4 in.). The transmitter should be pointed directly
at the door handle, i.e at 90_ angle to the vehicle body.
NG REPLACE DOOR CONTROL TRANSMITTER
OK
4 CHECK WIRELESS DOOR LOCK BUZZER
(a) Check that the wireless door lock buzzer sounds.
NG GO TO FLOW CHART (See page 05-1812 )
OK
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 1988
05-1806
DIAGNOSTICS - WIRELESS DOOR LOCK CONTROL SYSTEM
5 SWITCH TO SELF-DIAGNOSTIC MODE
(a) When using the hand-held tester:
Switch to the self-diagnostic mode on the hand-held tester.
(1) Connect the hand-held tester to the DLC3.
(2) Turn the ignition switch ON and push the hand-held tester main switch ON.
HINT:
Please refer to the hand-held tester operator's manual for further details.
(b) When not using the hand-held tester:
Switch to the self-diagnostic mode by operating the ignition key cylinder.
(1) Insert the key into the ignition key cylinder and remove it under the initial vehicle condition
(See page 73-1 1).
(2) Within 5 seconds after the above step, insert the key into the ignition key cylinder and turn the
ignition switch from ON to OFF once.
(3) Within 30 seconds after the above step, turn the ignition switch from ON to OFF 9 times.
NOTICE:
If operation has failed, the system will return to the normal mode.
HINT:
S Operation of the ignition switch from OFF to ON will end the self-diagnostic mode.
S Do not lock or unlock doors during the self-diagnostic mode.
(c) Check that the system has switched to self-diagnostic
a: 0.13 sec. mode by the answer-back of the wireless door lock buzz-
Buzzer b: 0.5 sec. er sound.
ON
OFF
a b
B52341
NG Go to step 10
OK
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 1989
05-1807
DIAGNOSTICS - WIRELESS DOOR LOCK CONTROL SYSTEM
6 CHECK BY SELF-DIAGNOSTIC MODE
(a) Inspect the diagnosis outputs when the door control transmitter switch is held down (The diagnosis
outputs can be checked with the sound of the wireless door lock buzzer).
HINT:
S In the case of a reception of the normal wave of the LOCK, UNLOCK, POWER SLIDE DOOR, POWER
BACK DOOR or PANIC switch (wireless door lock buzzer sounds), go to step A.
S In the case of an unmatching recognition code (wireless door lock buzzer ON), go to step B.
S In the case of no diagnosis outputs (wireless door lock buzzer OFF), go to step C.
Normal wave of LOCK switch
Buzzer Output
ON Unmatching recognition code
Buzzer Output
OFF ON
T1 T3
OFF Wave is being received
Normal wave of UNLOCK switch
Buzzer Output
ON
OFF No diagnosis outputs
T1 T2 T1 T3
Buzzer Output
Normal wave of POWER SLIDE DOOR, POWER
OFF
BACK DOOR or PANIC switch
Buzzer Output
ON
T1: 0.13 sec.
OFF T2: 0.25 sec.
T3: 0.5 sec.
T3 T3
A Go to step 18
C Go to step 8
B
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 1990
05-1808
DIAGNOSTICS - WIRELESS DOOR LOCK CONTROL SYSTEM
7 REGISTER RECOGNITION CODE
(a) Check that the system can switch to rewrite mode or add mode and also check wether a recognition
code can be registered.
NG Go to step 9
OK
NORMAL (CARRY OUT INSPECTION OF FUNCTIONS)
8 CHECK RESPONSE OF DOOR CONTROL RECEIVER
(a) When a new or normal door control transmitter switch for the same type vehicle is held down, check
that a diagnosis of unmatching recognition code is output.
NG Go to step 14
OK
REPLACE DOOR CONTROL TRANSMITTER
9 REPLACE DOOR CONTROL RECEIVER WITH NORMAL ONE
NG Go to step 18
OK
REPLACE DOOR CONTROL RECEIVER
10 CONFIRM INPUT METHOD OF SELF-DIAGNOSTIC MODE
(a) When the method for switching the system to self-diagnostic mode works, proceed to A.
(b) When the method for switching the system to self-diagnostic mode does not work, proceed to B.
B Go to step 5
A
11 READ VALUE OF HAND-HELD TESTER
(a) Using the hand-held tester, check the DATA LIST for proper functioning of the un-lock warning switch.
Standard (Multiplex network body ECU):
Item Measurement Item/Display (Range) Normal Condition Diagnostic Note
ON: Key is in ignition key cylinder
KEY UNLK WRN SW Un-lock warning switch signal/ON or OFF -
OFF: No key is in ignition key cylinder
OK Go to step 14
NG
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 1991
05-1809
DIAGNOSTICS - WIRELESS DOOR LOCK CONTROL SYSTEM
12 INSPECT UN-LOCK WARNING SWITCH ASSY
(a) Inspect the resistance of the un-lock warning switch.
Free Standard:
Terminal No. Condition Specified Condition
Switch free
10 k or higher
Pushed (Key removed)
1-2
Switch pushed
Below 1
(Key set)
B52271 NG REPLACE UN-LOCK WARNING SWITCH ASSY
OK
13 CHECK WIRE HARNESS (UN-LOCK WARNING SWITCH ASSY - MULTIPLEX
NETWORK BODY ECU) (UN-LOCK WARNING SWITCH - BODY GROUND)
Wire Harness Side (a) Disconnect the K4 warning switch connector.
(b) Disconnect the B6 ECU connector.
K4
(c) Check the resistance between the wire harness side con-
Un-lock Warning Switch
nectors.
Standard:
Terminal No. Specified Condition
K4-2 - B6-14 Below 1
(d) Check the resistance between the K4 warning switch con-
nector and body ground.
B6 Standard:
Multiplex Network Body ECU Terminal No. Specified Condition
K4-1 - Body ground Below 1
B62226 NG REPAIR OR REPLACE HARNESS AND
CONNECTOR
OK
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 1992
05-1810
DIAGNOSTICS - WIRELESS DOOR LOCK CONTROL SYSTEM
14 CHECK WIRE HARNESS (DOOR CONTROL RECEIVER - BODY GROUND)
Wire Harness Side (a) Disconnect the D4 receiver connector.
(b) Check the voltage and resistance between the wire har-
ness side connector of the receiver and body ground.
Standard:
Terminal No. Specified Condition
D4-5 (+B) - Body ground 10 to 14 V
D4-1 (GND) - Body ground Below 1
D4
Door Control Receiver B59092 NG REPAIR OR REPLACE HARNESS AND
CONNECTOR
OK
15 CHECK DOOR CONTROL RECEIVER (OUTPUT)
(a) Reconnect the D4 receiver connector, and check the volt-
age between the terminal and body ground.
B51174
Standard:
Terminal No. Condition Specified Condition
No key in ignition key cylinder, all doors closed
D4-2 (RDA) - Body ground Below 1 V Approx. 6 to 7 V Below 1 V
and each transmitter switch OFF ON
OK Go to step 17
NG
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 1993
05-181 1
DIAGNOSTICS - WIRELESS DOOR LOCK CONTROL SYSTEM
16 CHECK WIRE HARNESS (DOOR CONTROL RECEIVER - MULTIPLEX NETWORK
BODY ECU) (DOOR CONTROL RECEIVER OR MULTIPLEX NETWORK BODY ECU)
- BODY GROUND)
Wire Harness Side (a) Disconnect the D4 receiver connector.
D4 (b) Disconnect the B9 ECU connector.
Door Control Receiver (c) Check the resistance between the wire harness side con-
nectors.
Standard:
Terminal No. Specified Condition
D4-2 (RDA) - B9-12 (RDA) Below 1
(d) Check the continuity between the D4 receiver connector
B9
Multiplex Network Body ECU
or B9 ECU connector and the body ground.
Standard:
Terminal No. Specified Condition
D4-2 (RDA) - Body ground 10 k or higher
B9-12 (RDA) - Body ground 10 k or higher
NG REPAIR OR REPLACE HARNESS AND
CONNECTOR
B68693
OK
17 REPLACE DOOR CONTROL RECEIVER WITH NORMAL ONE
OK REPLACE DOOR CONTROL RECEIVER
NG
18 REPLACE MULTIPLEX NETWORK BODY ECU WITH NORMAL ONE
NG REPLACE INSTRUMENT PANEL JUNCTION
BLOCK ASSY
OK
REPLACE MULTIPLEX NETWORK BODY ECU
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 1994
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