Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Toyota Sienna 2004-2007 Approved SRM 44 systemci 044ect
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ECT and A/T Indicator
From Power Source System (See Page 58)
20A 10A
EFI ETCS
NO. 1
D1
Data Link Connector 3
3 2H
WFSE SIL TC
15 7 13
R
P- B
W
B- W
W- L
28 1K 14 1K
B- W
B- W
B- W
J 5(A), J 6(B)
J 3(A), J 4(B)
J 3(A), J 4(B)
11 A 25 A 21 A 12 1H 34 1H
Connector
Connector
Connector
Junction
Junction
Junction
P- B
W
6 2H 7 2H 25 B 8 B 4 B
Connector
3 26 29
Junction
J18
B- W
B- W
13 16 19
R
2 5
W- L
P- B
W
EFI Relay
EFI NO. 2
3 A 8 A 6 B 19 A 18 A 20 A
10A
BATT MREL +BM WFSE SIL TC
1 3 E 4(A), E 5(B), E 6(C), E 7(D), E 8(E)
Engine Control Module
+B +B2 VC VTA1 VTA2 M+ M- GE01
2 2A 1 2F 2 2H 1 A 2 A 18 E 21 E 31 E 3 C 2 C 17 C
B- R
B- R
B- R
B- R
Y
(Shielded)
A A
B- R
LG
W
B
I2
J21 A
13 IJ1 Junction
R
Connector
B- R
5 6 4 2 1
VC VTA1 VTA2 M+ M-
J 3(A), J 4(B)
9 B
Connector
E2
W- B
Junction
3 T2
Throttle Control Motor
Throttle Position Sensor
B- R
26 A
B- R
G
G
B- R
ED
216
2005 SIENNA (EWD613U)
From Power Source System (See Page 58)
1
F16
7. 5A ST
7. 5A 10A Fuse Box
IGN STOP
2
B- Y
13 1H 30 1K 16 1C
B- O
W
(* 1) 1 II2
J 5(A), J 6(B)
18 B
Connector
Connector
A
B- O
Junction
Junction
B- Y
(* 2)
W
J15
4 A A J30
Connector
A A Junction Connector
Junction
B- O
W
J2
(* 1)
3 2
A A A B B
Connector
LG- R
LG- R
G- W
G- W
22
B- Y
B- L
Junction
J18
Stop Light SW
J 3(A), J 4(B)
2 A 20 A 4 5
12
Connector
Junction
P
S12
B- Y
B- L
N
B- O
19 B 3 B 4 1
P1
LG- R
G- W
Park/Neutral
Position SW
9 A 12 B 19 B 16 E 17 E
IGSW ST1- STP NSW STA
E 4(A), E 5(B), E 6(C), E 7(D), E 8(E)
Engine Control Module
DSL S4 SR SLT+ SLT- SL3+ SL3- SL1+ SL1- SL2+ SL2- THO1 E2
11 D 10 D 9 D 13 D 12 D 17 D 16 D 19 D 18 D 15 D 14 D 32 D 28 E
BR
LG- B
G- W
BR
B- W
G- R
G- B
Y- G
Y- R
Y- B
R- B
L- R
L- Y
GR
I2
BR
10 3 9 2 8 4 11 6 13 5 12 1 7
GR
BR
SB
LG
W
G
O
O
R
Y
V
B
L
E1
Electronically Controlled Transmission Solenoid
G G
B- R B- R
* 1 : w/ Dynamic Laser Cruise Control
* 2 : w/o Dynamic Laser Cruise Control
217
2005 SIENNA (EWD613U)
ECT and A/T Indicator
A15
Accel Position Sensor
Counter Gear Speed Sensor
VPA1 VPA2 VCP1 VCP2 EP1 EP2
Turbine Speed Sensor
6 3 4 1 5 2
1 1
GR- R
W- R
B- R
R- B
L- Y
LG
Junction Connector
C4
T3
J 5(A), J 6(B)
13 A 27 A 14 A 28 A 12 A 26 A 2 2
W- G
W- R
LG
R
27 B 13 B 28 B 14 B 26 B 12 B
GR- R
W- R
B- R
R- B
L- Y
LG
22 A 23 A 26 A 27 A 28 A 29 A 27 D 35 D 26 D 34 D
VPA VPA2 VCPA VCP2 EPA EPA2 NT+ NT- NC+ NC-
E 4(A), E 5(B), E 6(C), E 7(D), E 8(E)
Engine Control Module
THW VG E2G THA E01 E02 E1 EOM E04 E05 E03 ME01
19 E 30 E 29 E 20 E 7 E 6 E 1 C 15 A 7 D 6 D 7 C 4 C
BR
BR
Connector
66
Junction
L- W
G- B
L- B
R
J20
76
Engine Coolant Temp. Sensor
W- B
W- B
W- B
W- B
W- B
W- B
BR
BR
Mass Air Flow Meter
2 3 2 4
VG E2G THA 8 II3
M1
E2 +B
E2
BR
1 5 1
A A
B- R
BR
BR
BR
J29 A
Junction
Connector
G
BR
I2
B- R
EB EC
218
2005 SIENNA (EWD613U)
R- L
R- L
R- L
V
7 1E
R- L
V
22 14 21 B 2
Airbag Sensor
MPX2 MPX1 MPX2 MPX+ A9
Assembly
A/C Control
Assembly
A21
MPX1 MPX-
24 B 7(B) 3
Body ECU
R- L
R- L
6 1E
70
J19
Junction
Connector
32 1H 90
R- L
V
29 B 18 B
MPX2 MPX1
E 4(A), E 5(B), E 6(C), E 7(D), E 8(E)
Engine Control Module
SPD 3 4 L 2 R D N P
17 B 20 B 23 B 8 B 9 B 11 B 10 B 7 A 6 A
B- W
L
3 4
Transmission
V- W
L- W
Y- G
Y- R
R- B
L- Y
AT4 ATL
Control SW
G
NSSD NSSL
S8
9 10
L- W
Y- G
Connector
75 82 83 88 73 70 61
Junction
72 J20
Junction
J20
Connector
45 J19 84 87 74 80 71
Junction L- Y
Connector
L- W
L- W
Y- G
R- B
Y- R
V- W
L- W
R- B
Y- G
G
V- W
219
2005 SIENNA (EWD613U)
ECT and A/T Indicator
From Power Source System (See Page 58)
10A 10A 7. 5A
GAUGE1 ECU- B GAUGE2
26 1L 8 2C 25 1H
W- L
R- L R
24 1C
V
R
7 1L
W- L
B- R
R- L
V
85
J18
Junction
Connector
Connector 62 13 54
Junction
76
J19
32 33 34
R
W- L
R- L
V
10 II3
28 29 12 32
R
P1
Park/Neutral
Position SW 2
RB
PL RL NL DL 2L LL
6 1 9 7 3 8
L- W
Y- G
Y- R
R- B
L- Y
G
C10
6 II3 11 II3 5 II3 4 II3 7 II3 3 II3 Combination Meter
L- W
Y- G
Y- R
R- B
L- Y
G
L- Y
Y- R
L- W
R- B
Y- G
G
V- W V- W
220
2005 SIENNA (EWD613U)
* 3 : w/ VSC
* 4 : w/o VSC
C10
Combination Meter
Speedometer
R
N
D
P
4
3
2
35 30 36 L
GR- R
V- W
BR
J 7(A), J 8(B)
4 B
Connector
Junction
16 A
GR
12 A (*3)
17 B (*4)
SP1
S 3(A), (B)
Skid Control ECU
with Actuator
V- W
IF
221
2005 SIENNA (EWD613U)
ECT and A/T Indicator
System Outline
Previous automatic transaxle have selected each gear shift using mechanically controlled throttle hydraulic pressure,
governor hydraulic pressure and lock-up hydraulic pressure. The electronically controlled transmission, however, electrically
controls the line pressure, throttle pressure, lock-up pressure and accumulator pressure etc. through the solenoid valve. The
electronically controlled transmission is a system which precisely controls gear shift timing and lock-up timing in response to
the vehicle's driving conditions and the engine condition detected by various sensors. It makes smooth driving possible by
shift selection for each gear which is the most appropriate to the driving conditions at that time, and by preventing downing,
squat and gear shift shock when starting off.
1. Gear Shift Operation
When driving, the engine warm up condition is input as a signal to TERMINAL THW of the engine control module from the
engine coolant temp. sensor and the vehicle speed signal is input to TERMINAL SPD of the engine control module. At the
same time, the throttle valve opening signal from the throttle position sensor is input to TERMINAL VTA1, VTA2 of the engine
control module as throttle angle signal.
Based on these signals, the engine control module selects the best shift position for the driving conditions and sends current
to the electronically controlled transmission solenoid.
2. Lock-Up Operation
When each signal makes engine control module recognize that LOCK-UP condition is satisfied, the current flows from
engine control module TERMINAL DSL to electronically controlled transmission solenoid TERMINAL 10. At the same time,
the current flows engine control module TERMINAL SL1+ to electronically controlled transmission solenoid TERMINAL 6
and from TERMINAL 13 to engine control module TERMINAL SL1-. This works LOCK-UP solenoid to perform LOCK-UP
operation.
3. Stop Light SW Circuit
If the brake pedal is depressed (Stop light SW on) when driving in lock-up condition, a signal is input to TERMINAL STP of
the engine control module. The engine control module operates and cuts the current to the solenoid to release lock-up.
Service Hints
E4 (A), E5 (B), E6 (C), E7 (D), E8 (E) Engine Control Module
(A) 3, (B) 6-Ground : Always approx. 12 volts
(A) 9-Ground : Approx. 12 volts with the ignition SW at ON position
(B)19-Ground : Approx. 12 volts with the brake pedal depressed
(A) 15, (C) 1, (C) 4, (C) 7, (D) 6, (D) 7, (E) 6, (E) 7-Ground : Always continuity
P1 Park/Neutral Position SW
2-6 : Closed with shift lever in P position
2-1 : Closed with shift lever in R position
2-9 : Closed with shift lever in N position
2-7 : Closed with shift lever in D position
2-3 : Closed with shift lever in 2 position
2-8 : Closed with shift lever in L position
: Parts Location
Code See Page Code See Page Code See Page
A9 34 E8 E 35 J21 36
A15 34 F16 35 J29 36
A21 34 J2 33 J30 36
B7 B 34 J3 A 36 M1 33
C4 32 J4 B 36 P1 33
C10 35 J5 A 36 A 33
S3
D1 35 J6 B 36 B 33
E1 32 J7 A 36 S8 37
E2 32 J8 B 36 S12 37
E4 A 35 J15 36 T2 33
E5 B 35 J18 36 T3 33
E6 C 35 J19 36
E7 D 35 J20 36
222
2005 SIENNA (EWD613U)
: Junction Block and Wire Harness Connector
Code See Page Junction Block and Wire Harness (Connector Location)
1C 27 Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
1E 27
1H 26
Instrument Panel Wire and Driver Side J/B (Lower Finish Panel)
1K
27
1L
2A
2C
22 Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
2F
2H
: Connector Joining Wire Harness and Wire Harness
Code See Page Joining Wire Harness and Wire Harness (Connector Location)
II2
48 Engine Wire and Instrument Panel Wire (Right Kick Panel)
II3
IJ1 48 Engine Wire and Engine Room Main Wire (Right Kick Panel)
: Ground Points
Code See Page Ground Points Location
EB 44 Rear Bank of Right Cylinder Head
EC 44 Rear Bank of Left Cylinder Head
ED 44 Front Side of the Left Fender Apron
IF 46 Instrument Panel Brace LH
: Splice Points
Code See Page Wire Harness with Splice Points Code See Page Wire Harness with Splice Points
I2 48 Engine Wire
223
2005 SIENNA (EWD613U)
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