Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Toyota Sienna 2004-2007 Approved SRM 04 05 20vza ciu0121u
<< Back | HomeMost service manuals and schematics are PDF files, so You will need Adobre Acrobat Reader to view : Acrobat Download Some of the files are DjVu format. Readers and resources available here : DjVu Resources
For the compressed files, most common are zip and rar. Please, extract files with Your favorite compression software ( WinZip, WinRAR ... ) before viewing. If a document has multiple parts, You should download all, before extracting.
Good luck. Repair on Your own risk. Make sure You know what You are doing.
Image preview - the first page of the document
>> Download ciu0121u documenatation <<
Text preview - extract from the document
05-1939
DIAGNOSTICS - CAN COMMUNICATION SYSTEM 05BYR-02
SKID CONTROL ECU COMMUNICATION STOP MODE
CIRCUIT DESCRIPTION
DTC No. DTC Detecting Condition Trouble Area
S Open circuit for between skid control ECU and junction con-
S Data transmission from VSC ECU is not finished for more nector
than 5 sec. S Short circuit between CANL circuit and CANH circuit
U0121/94
S The condition that CAN bus-off status occurs once or S Short (GND) circuit in CANL circuit
more within 0.1 sec., and it repeately occurs 10 times. S Short (+B) circuit in CANL circuit
S Skid control ECU
S When ECU terminal IG1 voltage is 9.5 V or more, the data
is not received from yaw rate sensor for more than 1 sec.
S Open circuit for between yaw rate sensor and junction con-
S When ECU terminal IG1 voltage is 9.5 V or more, the
U0123/62 nector
condition that the data received from yaw rate sensor is
S Yaw rate sensor
impossible once or more within 5 sec., and it repeatedly
occurs 10 times.
S When ECU terminal IG1 voltage is 9.5 V or more, data is
not received from deceleration sensor for more than 1 sec. S Open circuit for between yaw rate sensor and junction con-
U0124/95 S When ECU terminal IG1 voltage is 9.5 V or more, data nector
received from deceleration sensor is impossible once or S Yaw rate sensor
more within 5 sec., and it repeatedly occurs 10 times.
S When ECU terminal IG1 voltage is 9.5 V or more, data is
not received from steering angle sensor for more than 1
S Open circuit for between steering angle sensor and junction
sec.
U0126/63 connector
S When ECU terminal IG1 voltage is 9.5 V or more, data
S Steering angle sensor
received from steering angle sensor is impossible once or
more within 5 sec., and it repeatedly occurs 10 times.
WIRING DIAGRAM
D1 DLC3
S9 Skid Control ECU
CANL CANH with Actuator
Seering Angle Sensor
14 6
W 15 B 4
J/C 25
1 15
CANL W W W CANL
J6 J5 S3
9 11 12
J/C
J17 15 1 11
B B B
J6 J5 S3
CANH 10 1 2 CANH
W 13 B 3
16 J31 J31 8
J/C
8 J32 J32 16
W 2 B 3
CANL CANH
Y1
Yaw Rate Sensor
C87488
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 2122
05-1940
DIAGNOSTICS - CAN COMMUNICATION SYSTEM
INSPECTION PROCEDURE
1 CHECK RESISTANCE(CANL - CANH OF DLC3)
CANL
(a) Measure the resistance between the terminals CANL and
CANH of the DLC3.
A 54 to 66
B 1 M or more
C Less than 54
D 108 to 132
B Go to step 4
CANH
C52361
C Go to step 8
D Go to step 5
A
2 CHECK HARNESS AND CONNECTOR(CANL CIRCUIT - +B CIRCUIT, CANH
CIRCUIT - +B CIRCUIT)
CANL
(a) Measure the resistance between the terminals CANL and
BAT
BAT of the DLC3.
OK:
Resistance: 1 M or higher
(b) Measure the resistance between the terminal CANH and
BAT of the DLC3.
OK:
Resistance: 1 M or higher
CANH
C52361
NG Go to step 15
OK
3 CHECK HARNESS AND CONNECTOR(CANL CIRCUIT - GROUND CIRCUIT, CANH
CIRCUIT - GROUND CIRCUIT)
CANL
(a) Measure the resistance between the terminals CANL and
CG of the DLC3.
OK:
Resistance: 1 M or higher
(b) Measure the resistance between the terminal CANH and
CG of the DLC3.
OK:
Resistance: 1 M or higher
CANH CG C52361
NG Go to step 23
OK
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 2123
05-1941
DIAGNOSTICS - CAN COMMUNICATION SYSTEM
IF THE SAME CODE IS STILL OUTPUT AFTER THE DTC IS DELETED, CHECK THE CONTACT
CONDITION OF EACH CONNECTION
4 CHECK HARNESS AND CONNECTOR(JUNCTION CONNECTOR(J17) - DLC3)
(a) Disconnect the junction connector (J17).
DLC3: CANH
(b) Measure the resistance between the terminal CANL of
the DLC3 and CANL of the junction connector (J17).
1 2 3 4 5 6 7 8 OK:
Resistance: 1 or less
9 10 11 12 13 14 15 16 (c) Measure the resistance between the terminal CANH of
the DLC3 and CANH of the junction connector (J17).
OK:
CANL Resistance: 1 or less
Junction Connector (J17):
CANH
CANL
C87482
OK Go to step 1
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR AND GO TO STEP 1
5 CHECK HARNESS AND CONNECTOR(CAN BUS CIRCUIT)
CANH
(a) Disconnect the skid control ECU connector.
(b) Measure the resistance between the terminals CANL and
CANH of the skid control ECU wire harness side connec-
tor.
OK:
Resistance: 108 to 132
CANL
F45081
OK Go to step 7
NG
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 2124
05-1942
DIAGNOSTICS - CAN COMMUNICATION SYSTEM
6 CHECK JUNCTION CONNECTOR(J17)
(a) Disconnect the junction connector (J17).
CANH CANH (b) Measure the resistance between the terminals 1 and 4 of
the junction connector.
OK:
Resistance: 1 or less
(c) Measure the resistance between the terminals 12 and 15
of the junction connector.
OK:
CANL CANL Resistance: 1 or less
C87483
NG REPLACE JUNCTION CONNECTOR
OK
REPAIR OR REPLACE HARNESS OR CONNECTOR(SKID CONTROL ECU - JUNCTION CONNEC-
TOR)
7 CHECK RESISTANCE(CANL - CANH OF SKID CONTROL ECU)
(a) Disconnect the skid control ECU connector.
CANH (b) Measure the resistance between the terminals CANL and
CANH of the skid control ECU.
OK:
Resistance: 108 to 132
CANL NG REPLACE ABS & TRACTION ACTUATOR ASSY
F45109
OK
IF THE SAME CODE IS STILL OUTPUT AFTER THE DTC IS DELETED, CHECK THE CONTACT
CONDITION OF EACH CONNECTION
8 CHECK HARNESS AND CONNECTOR(DLC3 - JUNCTION CONNECTOR(J17))
CANL
(a) Disconnect the junction connector (J17).
(b) Measure the resistance between the terminals CANL and
CANH of the DLC3.
OK:
Resistance: 1 M or higher
CANH NG REPAIR OR REPLACE HARNESS OR
C52361 CONNECTOR
OK
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 2125
05-1943
DIAGNOSTICS - CAN COMMUNICATION SYSTEM
9 CHECK HARNESS AND CONNECTOR(SKID CONTROL ECU - JUNCTION
CONNECTOR(J17))
(a) Disconnect the junction connector (J14).
CANH
(b) Disconnect the skid control ECU connector.
(c) Measure the resistance between the terminals CANL and
CANH of the skid control ECU wire harness side connec-
tor.
OK:
Resistance: 1 M or higher
CANL
F45081
NG REPAIR OR REPLACE HARNESS OR
CONNECTOR
OK
10 CHECK RESISTANCE(CANL - CANH OF SKID CONTROL ECU)
(a) Disconnect the skid control ECU connector.
CANH (b) Measure the resistance between the terminals CANL and
CANH of the skid control ECU.
OK:
Resistance: 108 to 132
CANL
F45109 NG REPLACE ABS & TRACTION ACTUATOR ASSY
OK
11 CHECK HARNESS AND CONNECTOR(STEERING ANGLE SENSOR - JUNCTION
CONNECTOR(J17))
(a) Disconnect the junction connector (J17).
(b) Disconnect the steering angle sensor connector.
CANH
(c) Measure the resistance between the terminals CANL and
CANH of the steering angle sensor wire harness side con-
nector.
OK:
Resistance: 1 M or higher
CANL
F45110
NG REPAIR OR REPLACE HARNESS OR
CONNECTOR
OK
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 2126
05-1944
DIAGNOSTICS - CAN COMMUNICATION SYSTEM
12 CHECK RESISTANCE(CANL - CANH OF STEERING ANGLE SENSOR)
(a) Disconnect the skid control ECU connector.
(b) Measure the resistance between the terminals CANL and
CANH
CANH of the steering angle sensor.
OK:
Resistance: 108 to 132
CANL
F45111 NG REPLACE STEERING ANGLE SENSOR
OK
13 CHECK HARNESS AND CONNECTOR(YAW RATE SENSOR - JUNCTION
CONNECTOR(J17))
(a) Disconnect the junction connector (J17).
CANH (b) Disconnect the yaw rate sensor connector.
(c) Measure the resistance between the terminals CANL and
CANH of the yaw rate sensor wire harness side connec-
tor.
OK:
Resistance: 1 M or higher
CANL
F45082
NG REPAIR OR REPLACE HARNESS OR
CONNECTOR
OK
14 CHECK JUNCTION CONNECTOR(J17)
(a) Disconnect the junction connector (J17).
CANH (b) Measure the resistance between the terminals 1, 2, 3 or
4 and 12, 13, 14 or 15 of the junction connector.
OK:
Resistance: 1 M or higher
CANL C87483
NG REPLACE JUNCTION CONNECTOR
OK
REPLACE YAW RATE SENSOR
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 2127
05-1945
DIAGNOSTICS - CAN COMMUNICATION SYSTEM
15 CHECK HARNESS AND CONNECTOR(DLC3 - JUNCTION CONNECTOR (+B
SHORT))
CANL
(a) Disconnect the junction connector (J17).
BAT
(b) Measure the resistance between the terminals CANL and
BAT of the DLC3.
OK:
Resistance: 1 M or more
(c) Measure the resistance between the terminals CANH and
BAT of the DLC3.
OK:
CANH Resistance: 1 M or higher
C52361
NG REPAIR OR REPLACE HARNESS OR
CONNECTOR
OK
16 CHECK SKID CONTROL ECU
CANL
(a) Connect the junction connector (J17).
BAT
(b) Disconnect the skid control ECU connector.
(c) Measure the resistance between the terminals CANL and
BAT of the DLC3.
OK:
Resistance: 1 M or more
(d) Measure the resistance between the terminals CANH and
BAT of the DLC3.
CANH OK:
C52361
Resistance: 1 M or higher
OK REPLACE ABS & TRACTION ACTUATOR ASSY
NG
17 CHECK STEERING ANGLE SENSOR
CANL
(a) Disconnect the steering angle sensor connector.
BAT
(b) Measure resistance between terminals CANL and BAT of
the DLC3.
OK:
Resistance: 1 M or more
(c) Measure resistance between terminals CANH and BAT of
the DLC3.
OK:
CANH Resistance: 1 M or higher
C52361
OK REPLACE STEERING ANGLE SENSOR
NG
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 2128
05-1946
DIAGNOSTICS - CAN COMMUNICATION SYSTEM
18 CHECK YAW RATE SENSOR
CANL
(a) Disconnect the steering angle sensor connector.
BAT
(b) Measure the resistance between the terminals CANL and
BAT of the DLC3.
OK:
Resistance: 1 M or more
(c) Measure the resistance between the terminals CANH and
BAT of the DLC3.
OK:
CANH Resistance: 1 M or higher
C52361
OK REPLACE YAWRATE SENSOR
NG
19 CHECK AND REPLACE JUNCTION CONNECTOR(J17)
Junction Connector (J17) (a) Disconnect the junction connector (J17).
CANH
(b) Measure the resistance the between terminal BAT of the
DLC3 and any CANL of the junction connector wire har-
ness side connector.
OK:
Resistance: 1 M or more
(c) Measure the resistance between the terminal BAT of the
DLC3 and any CANH of the junction connector wire har-
CANL ness side connector.
DLC3 OK:
Resistance: 1 M or higher
1 2 3 4 5 6 7 8
9 10 11 12 13 14 15 16
BAT
C87484 NG REPLACE JUNCTION CONNECTOR
OK
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 2129
05-1947
DIAGNOSTICS - CAN COMMUNICATION SYSTEM
20 CHECK HARNESS AND CONNECTOR(SKID CONTROL ECU - JUNCTION
CONNECTOR(J17))
(a) Disconnect the junction connector (J17).
CANH (b) Disconnect the skid control ECU.
(c) Measure the resistance between the terminal CANL of
the skid control ECU wire harness side connector and
BAT of the DLC3.
OK:
Resistance: 1 M or more
CANL (d) Measure the resistance between the terminal CANH of
the skid control ECU wire harness side connector and
DLC3 BAT of the DLC3.
OK:
Resistance: 1 M or higher
1 2 3 4 5 6 7 8
9 10 11 12 13 14 15 16
BAT
NG REPAIR OR REPLACE HARNESS OR
C87485 CONNECTOR
OK
21 CHECK HARNESS AND CONNECTOR(STEERING ANGLE SENSOR - JUNCTION
CONNECTOR(J17))
(a) Disconnect the junction connector (J17).
(b) Disconnect the steering angle sensor connector.
CANH (c) Measure the resistance between the terminal CANL of
the steering angle sensor wire harness side connector
and BAT of the DLC3.
OK:
Resistance: 1 M or more
(d) Measure the resistance between the terminal CANH of
CANL
the steering angle sensor wire harness side connector
DLC3 and BAT of the DLC3.
OK:
Resistance: 1 M or higher
1 2 3 4 5 6 7 8
9 10 11 12 13 14 15 16
BAT
NG REPAIR OR REPLACE HARNESS OR
C87486 CONNECTOR
OK
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 2130
05-1948
DIAGNOSTICS - CAN COMMUNICATION SYSTEM
22 CHECK HARNESS AND CONNECTOR(YAW RATE SENSOR - JUNCTION CON-
NECTOR(J17))
(a) Disconnect the junction connector (J17).
CANH
(b) Disconnect the yaw rate sensor connector.
(c) Measure the resistance between the terminal CANL of
the yaw rate sensor wire harness side connector and BAT
of the DLC3.
OK:
Resistance: 1 M or more
(d) Measure the resistance between the terminal CANH of
CANL the yaw rate sensor wire harness side connector and BAT
DLC3 of the DLC3.
OK:
Resistance: 1 M or higher
1 2 3 4 5 6 7 8
9 10 11 12 13 14 15 16
BAT
NG REPAIR OR REPLACE HARNESS OR
C87487 CONNECTOR
OK
IF THE SAME CODE IS STILL OUTPUT AFTER THE DTC IS DELETED, CHECK THE CONTACT
CONDITION OF EACH CONNECTION
23 CHECK HARNESS AND CONNECTOR(DLC3 - JUNCTION CONNECTOR(GND
SHORT))
CANL
(a) Disconnect the junction connector (J17).
(b) Measure the resistance between the terminals CANL and
CG of the DLC3.
OK:
Resistance: 1 M or more
(c) Measure the resistance between the terminals CANH and
CG of the DLC3.
OK:
CANH CG
C52361 Resistance: 1 M or higher
NG REPAIR OR REPLACE HARNESS OR
CONNECTOR
OK
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 2131
05-1949
DIAGNOSTICS - CAN COMMUNICATION SYSTEM
24 CHECK SKID CONTROL ECU
CANL
(a) Disconnect the skid control ECU connector.
(b) Measure the resistance between the terminals CANL and
CG of the DLC3.
OK:
Resistance: 3 k or more
(c) Measure the resistance between the terminals CANH and
CG of the DLC3.
OK:
CANH CG C52361 Resistance: 3 k or higher
OK REPLACE ABS & TRACTION ACTUATOR ASSY
NG
25 CHECK STEERING ANGLE SENSOR
CANL
(a) Disconnect the steering angle sensor connector.
(b) Measure the resistance between the terminals CANL and
CG of the DLC3.
OK:
Resistance: 3 k or more
(c) Measure the resistance between the terminals CANH and
CG of the DLC3.
OK:
CANH CG C52361 Resistance: 3 k or higher
OK REPLACE STEERING ANGLE SENSOR
NG
26 CHECK YAW RATE SENSOR
CANL
(a) Disconnect the steering angle sensor connector.
(b) Measure the resistance between the terminals CANL and
CG of the DLC3.
OK:
Resistance: 3 k or more
(c) Measure the resistance between the terminals CANH and
CG of the DLC3.
OK:
CANH CG C52361 Resistance: 3 k or higher
OK REPLACE YAW RATE SENSOR
NG
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 2132
05-1950
DIAGNOSTICS - CAN COMMUNICATION SYSTEM
27 CHECK JUNCTION CONNECTOR(J17)
Junction Connector (J17) (a) Disconnect the junction connector (J17).
CANH
(b) Measure the resistance between the terminal CG of the
DLC3 and any CANL of the junction connector wire har-
ness side connector.
OK:
Resistance: 1 M or more
(c) Measure the resistance between the terminal CG of the
DLC3 and any CANH of the junction connector wire har-
CANL ness side connector.
DLC3 OK:
CG Resistance: 1 M or higher
1 2 3 4 5 6 7 8
9 10 11 12 13 14 15 16
C87484 NG REPLACE JUNCTION CONNECTOR
OK
28 CHECK HARNESS AND CONNECTOR(SKID CONTROL ECU - JUNCTON
CONNECTOR(J17))
(a) Disconnect the junction connector (J17).
CANH (b) Disconnect the skid control ECU.
(c) Measure the resistance between the terminal CANL of
the skid control ECU wire harness side connector and CG
of the DLC3.
OK:
Resistance: 1 M or more
CANL (d) Measure resistance between terminal CANH of the skid
control ECU wire harness side connector and CG of the
DLC3 DLC3.
CG OK:
Resistance: 1 M or higher
1 2 3 4 5 6 7 8
9 10 11 12 13 14 15 16
C87485 NG REPAIR OR REPLACE HARNESS OR
CONNECTOR
OK
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 2133
05-1951
DIAGNOSTICS - CAN COMMUNICATION SYSTEM
29 CHECK HARNESS AND CONNECTOR(STEERING ANGLE SENSOR - JUNCTION
CONNECTOR(J17))
(a) Disconnect the junction connector (J17).
(b) Disconnect the steering angle sensor connector.
CANH (c) Measure the resistance between the terminal CANL of
the steering angle sensor wire harness side connector
and CG of the DLC3.
OK:
Resistance: 1 M or more
(d) Measure the resistance between the terminal CANH of
CANL
the steering angle sensor wire harness side connector
DLC3 and CG of the DLC3.
CG
OK:
Resistance: 1 M or higher
1 2 3 4 5 6 7 8
9 10 11 12 13 14 15 16
NG REPAIR OR REPLACE HARNESS OR
C87486 CONNECTOR
OK
30 CHECK HARNESS AND CONNECTOR(YAW RATE SENSOR - JUNCTION
CONNECTOR(J17))
(a) Disconnect the junction connector (J17).
CANH
(b) Disconnect the yaw rate sensor connector.
(c) Measure the resistance between the terminal CANL of
the yaw rate sensor wire harness side connector and BAT
of the DLC3.
OK:
Resistance: 1 M or more
(d) Measure the resistance between the terminal CANH of
CANL the yaw rate sensor wire harness side connector and BAT
DLC3 of the DLC3.
OK:
Resistance: 1 M or higher
1 2 3 4 5 6 7 8
9 10 11 12 13 14 15 16
BAT
NG REPAIR OR REPLACE HARNESS OR
C87487 CONNECTOR
OK
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 2134
05-1952
DIAGNOSTICS - CAN COMMUNICATION SYSTEM
IF THE SAME CODE IS STILL OUTPUT AFTER THE DTC IS DELETED, CHECK THE CONTACT
CONDITION OF EACH CONNECTION
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 2135
◦ Jabse Service Manual Search 2026 ◦ Jabse Pravopis ◦ onTap.bg ◦ Other service manual resources online : Fixya ◦ eServiceinfo