2001 TOYOTA SEQUOIA wiring diagram

I28842
Integration Control
and Panel
IG+
Battery15 A GAUGE 3A5
3E2
I19 R±L
B±Y
5I18
Ignition Switch
21AM1
1L
W±L IG1
40 A AM11C 1C 1E
BW 8 F10
Fusible Link BlockW±L R±L
4 7 15
R±L
16Instrument Panel J/B Instrument Panel J/B
I1910
GND
140 A ALT
O
J43 J43J/C
A
A
O 2 1 Sub J/B No. 3
± DIAGNOSTICSAIR CONDITIONING SYSTEM
DI±2363
2557 Author: Date:
2005 SEQUOIA (RM1146U)
IG Power Source Circuit
CIRCUIT DESCRIPTION
This is the power source for the integration control and panel and servomotors, etc.
WIRING DIAGRAM
DI937±04

I24456
Integration Control
and Panel
Engine Room J/B
Battery
F10
Fusible Link
Block Instrument
Panel J/B
10 A DOMESHORT PIN R
1J3A 3E I19
2C2D
BSub J/B No. 3
BB
R581
3
54 16 6
1E
1 RR
+B DI±2366
± DIAGNOSTICSAIR CONDITIONING SYSTEM
2560 Author: Date:
2005 SEQUOIA (RM1146U)
Back±up Power Source Circuit
CIRCUIT DESCRIPTION
This is the back up power source for the integration control and panel. Power is supplied even when the
ignition switch is off and is used for diagnostic trouble code memory, etc.
WIRING DIAGRAM
DI3FL±10

I28847
+B I19 Integration Control and Panel:
I22575
DOME Fuse Engine Room J/B
± DIAGNOSTICSAIR CONDITIONING SYSTEM
DI±2367
2561 Author: Date:
2005 SEQUOIA (RM1146U)
INSPECTION PROCEDURE
1 Check voltage between terminal +B of integration control and panel and body
ground.
PREPARATION:
Remove the integration control and panel with connectors still
connected.
CHECK:
Measure the voltage between terminal +B of the integration
control and panel and body ground.
OK:
Voltage : 10 to 14 V
OK Proceed to next circuit inspection shown in
problem symptoms table (See page DI±2304).
NG
2 Check DOME fuse.
PREPARATION:
Remove the DOME fuse from the engine room J/B.
CHECK:
Check continuity of the DOME fuse.
OK:
Continuity
NG Check for short in all the harness and compo-
nents connected to the DOME fuse (See at-
tached wiring diagram).
OK
Check and repair harness and connector between integration control and panel and battery.

I28843
Integration Control
and Panel
ACC D
15 A CIG I18
Ignition Switch
120 1
40 A AM1
F10
Fusible Link
Block
Battery 2 Instrument Panel J/B3
P
W
B 11L1C
6P
1E AM1
140 A ALT
ACC
5 W±L
1C
8 W±L111
I19 J15
J/C
P Instrument Panel J/B
D
GND 10
I19 O O
J43 J43J/C
A
A
IG
Cowl Side Panel RH
DI±2368
± DIAGNOSTICSAIR CONDITIONING SYSTEM
2562 Author: Date:
2005 SEQUOIA (RM1146U)
ACC Power Source Circuit
CIRCUIT DESCRIPTION
This circuit supplies power to the integration control and panel. It supplies power to the illumination for the
clock.
WIRING DIAGRAM
DI938±04

I28847
GNDI19 Integration Control and Panel:ACC
I22574
Instrument Panel J/B
CIG Fuse
± DIAGNOSTICSAIR CONDITIONING SYSTEM
DI±2369
2563 Author: Date:
2005 SEQUOIA (RM1146U)
INSPECTION PROCEDURE
1 Check voltage between terminals ACC and GND of integration control and panel.
PREPARATION:
Remove the integration control and panel with connectors still
connected.
CHECK:
(a) Turn the ignition switch to ACC.
(b) Measure the voltage between terminals ACC and GND of
the integration control and panel.
OK:
Voltage : 10 to 14 V
OK Proceed to next circuit inspection shown in
problem symptoms table (See page DI±2304).
NG
2 Check CIG fuse.
PREPARATION:
Remove the CIG fuse from the cowl side J/B.
CHECK:
Check continuity of the CIG fuse.
OK:
Continuity
NG Check for short in all the harness and compo-
nents connected to the CIG fuse (See attached
wiring diagram).
OK
Check and repair harness and connector between integration control and panel and battery.

I21123
Integration Control
and Panel
10
3A16
I19SPD G±O 10
3DSub J/B No. 4
G±O 3
C5 Combination Meter DI±2370
± DIAGNOSTICSAIR CONDITIONING SYSTEM
2564 Author: Date:
2005 SEQUOIA (RM1146U)
Vehicle Speed Signal Circuit
CIRCUIT DESCRIPTION
The integration control and panel monitors the vehicle speed through signals sent from the speed sensor.
It uses these signals to receive the ambient temperature sensor signal.
WIRING DIAGRAM
DI3WE±18

I28848
IGN
I223
Y±G B
23
Combination Meter TACHIntegration Control
and Panel
E5Y±G 1
Y±G
C5 ECM
J17
J/C
B
B J14D
J14F
J15
F DI±2372
± DIAGNOSTICSAIR CONDITIONING SYSTEM
2566 Author: Date:
2005 SEQUOIA (RM1146U)
Igniter Circuit
CIRCUIT DESCRIPTION
The integration control and panel monitors the engine speed through signals sent from the igniter. It uses
these signals and compressor speed signals to detect the compressor lock condition.
WIRING DIAGRAM
DI3WE±19

Duty Ratio =A + BA
x 100 (%)
ON
OFFA
B
1 cycle
Blower Level
0
Si duty (%)
LO M1M2HI
29.2
42.4 55.5100
M3
70.9
I15873
Integration Control
and Panel
BLW From
Heater Relay
W±B
IGAGND
VM
SI J18
J/C+B
3
4L±B
1
G±B
I19
24 B3
Blower
Motor (Front)
12 L±WL±B
L±B
B4
Blower Motor
Linear Controller DI±2374
± DIAGNOSTICSAIR CONDITIONING SYSTEM
2568 Author: Date:
2005 SEQUOIA (RM1146U)
Blower Motor Circuit (Front A/C)
CIRCUIT DESCRIPTION
The blower motor is operated by signals from the integration
control and panel. Blower motor speed signals are transmitted
by changes in the Duty Ratio.
Duty Ratio
The duty ratio is the ratio of the period of continuity in one cycle.
For example, if A is the period of continuity in one cycle, and B
is the period of non±continuity, then.
WIRING DIAGRAM
DI7SL±08