2001 TOYOTA SEQUOIA wiring diagram

I28835
24
Y±B W±R
A3
A/C Magnetic Clutch
and Lock Sensor 2
1IG4
SG±TAM Integration Control
and Panel
13
I19LOCK
20
I19 Y±B W±R
J14
J/C
AA 23
Y±B
IG4
± DIAGNOSTICSAIR CONDITIONING SYSTEM
DI±2339
2533 Author: Date:
2005 SEQUOIA (RM1146U)
DTC 22 Compressor Lock Sensor Circuit
CIRCUIT DESCRIPTION
This sensor sends 1 pulse per engine revolution to the integration control and panel.
If the compressor speed divided by the engine speed is smaller than a predetermined value, the integration
control and panel turns the compressor OFF. The indicator flashes at about 1 second intervals.
DTC No.Detection ItemTrouble Area
22
All conditions below are detected for 3 sec. or more
(a) Engine speed: 450 rpm or more
(b) Ratio of engine to compressor speed deviates 20% or more
in comparison to normal operation.

Compressor drive belt

Compressor lock sensor

Compressor

Harness or connector between compressor lock sensor and
integration control and panel

Integration control and panel
WIRING DIAGRAM
DIDKY±01

I28836
Integration Control
and Panel
PSW L±B
R±YR±Y
4A4
A/C Pressure Switch
I19
C46
IA5
1
J3
J/C
From
HTR FuseL±B
CDual
± DIAGNOSTICSAIR CONDITIONING SYSTEM
DI±2343
2537 Author: Date:
2005 SEQUOIA (RM1146U)
WIRING DIAGRAM

4 (V)
1
TP terminal voltage0 100 %
(Cool)
(Hot)
Damper opening angle
I28837
A17
Air Mix Control
Servomotor (Front)
5
L±R 4 322
15
12S5±AM
TP
SG±TP Integration Control
and Panel
I20 R±Y
G±R VZ
PT
GNDI20
I20 DI±2346
± DIAGNOSTICSAIR CONDITIONING SYSTEM
2540 Author: Date:
2005 SEQUOIA (RM1146U)
DTC 31 Front Air Mix Damper Position Sensor Cir-
cuit
CIRCUIT DESCRIPTION
This sensor detects the position of the air mix damper and
sends the appropriate signals to the integration control and
panel.
The position sensor is built into the air mix damper control ser-
vomotor assembly.
DTC No.Detection ItemTrouble Area
31Short to ground or short to power source circuit in front air mix

Front air mix damper position sensor

Harness or connector between front air mix damper position
31Short to ground or short to ower source circuit in front air mix
damper position sensor circuit.

Harness or connector between front air mix dam er osition
sensor and integration control and panel

Integration control and panel
WIRING DIAGRAM
DI3FF±10

(V)
4
1
0
100 %
TPI terminal voltage
Damper opening angle
I15866
A16
Air Inlet Control
Servomotor
1
Y±R 2 311
16
13S5±AI
TPI
SG±TPI Integration Control
and Panel
I20 L±B
W VZ
PT
GNDI20
I20
± DIAGNOSTICSAIR CONDITIONING SYSTEM
DI±2349
2543 Author: Date:
2005 SEQUOIA (RM1146U)
DTC 32 Air Inlet Damper Position Sensor Circuit
CIRCUIT DESCRIPTION
This sensor detects the position of the air inlet damper and
sends the appropriate signals to the integration control and
panel.
The position sensor is built into the air inlet damper control ser-
vomotor assembly.
DTC No.Detection ItemTrouble Area
32Short to ground or short to power source circuit in air inlet

Air inlet damper position sensor

Harness or connector between air inlet damper position sen-
32Short to ground or short to ower source circuit in air inlet
damper position sensor circuit.

Harness or connector between air inlet dam er osition sen-
sor and integration control and panel

Integration control and panel
WIRING DIAGRAM
DI3FG±10

4 (V)
1
TP terminal voltage0 100 %
(Cool)
(Hot)
Damper opening angle
I28838
A34 A/C Water Valve (Rear)
3 2
1
W W
5L±Y1
10
18RrS5
RrSG
RrTP Integration Control
and Panel
I21
L±R L±Y
O IJ3 BH1
L±R 7
L±Y
1
W
A L±R
IG
J/C
J438
6
(Shielded)
6 BH1
BH116 w/ Rear A/C:
(Shielded)
O
A VZ
GND
PTI21
I21 IJ3
IJ3
IJ3 DI±2352
± DIAGNOSTICSAIR CONDITIONING SYSTEM
2546 Author: Date:
2005 SEQUOIA (RM1146U)
DTC 37 Water Valve Damper Position Sensor Circuit
CIRCUIT DESCRIPTION
This sensor detects the position of the air mix damper and
sends the appropriate signals to the integration control and
panel.
The position sensor is built into the water valve damper control
servomotor assembly.
DTC No.Detection ItemTrouble Area
37Short to ground or short to power source circuit in water valve

Water valve damper position sensor

Harness or connector between water valve damper position
37Short to ground or short to ower source circuit in water valve
damper position sensor circuit.

Harness or connector between water valve dam er osition
sensor and integration control and panel

Integration control and panel
WIRING DIAGRAM
DI3FH±14

I28839
A17 Air Mix Damper
Control Servomotor (Front)
1
210
9AMH
AMC Integration Control and Panel
R±L
W±LI20 MHOT
I20 MCOOL
± DIAGNOSTICSAIR CONDITIONING SYSTEM
DI±2355
2549 Author: Date:
DTC 41 Front Air Mix Damper Control Servomotor
Circuit
CIRCUIT DESCRIPTION
The front air mix damper control servomotor is controlled by the integration control and panel and moves
the air mix damper to the desired position.
DTC No.Detection ItemTrouble Area
41
Air mix damper position sensor value does not change even if
integration control and panel operates air mix damper control
servomotor.

Front air mix damper control servomotor

Front air mix damper position sensor

Harness or connector between front air mix position sensor
and integration control and panel

Harness or connector between air mix damper control servo-
motor and integration control and panel

Integration control and panel
WIRING DIAGRAM
DI3FI±15

I28840
A16 Air Inlet Damper
Control Servomotor
520
8AIR
AIF Integration Control and Panel
G±W
I20
R 4
REC
FRS
I20 DI±2358
± DIAGNOSTICSAIR CONDITIONING SYSTEM
2552 Author: Date:
DTC 42 Air Inlet Damper Control Servomotor Circuit
CIRCUIT DESCRIPTION
The air inlet damper control servomotor is controlled by the integration control and panel and moves the air
inlet damper to the desired position.
DTC No.Detection itemTrouble Area

Air inlet damper control servomotor

Air inlet damper position sensor
42
Air inlet damper position sensor value does not change even if
integration control and panel operated air inlet damper control
servomotor

Harness or connector between air inlet damper control servo-
motor and integration control and panel

Harness or connector between air inlet damperposition sen-servomotor.
Harness or connector between air inlet damper position sen-
sor and integration control and panel

Integration control and panel
WIRING DIAGRAM
DI3FJ±14

I28841
Integration Control
and Panel
5
IJ3
I219
RrAMC
RrAMH L±B
BH13
4
R±G R±G A34
A/C Water Valve (Rear)
R±G L±B
28
10 L±B w/ Rear A/C:
7
M.COOL
M.HOTI21 IJ3 BH1
± DIAGNOSTICSAIR CONDITIONING SYSTEM
DI±2361
2555 Author: Date:
2005 SEQUOIA (RM1146U)
DTC 47 Water Valve Damper Control Servomotor
Circuit
CIRCUIT DESCRIPTION
The water valve damper control servomotor is controlled by the integration control and panel and moves the
water valve damper to the desired position.
DTC No.Detection ItemTrouble Area
47
Water valve damper position sensor value does not change
even if integration control and panel operates water valve
damper control servomotor.

Water valve damper control servomotor

Water valve damper position sensor

Harness or connector between water valve damper control
servomotor and integration control and panel

Harness or connector between water valve damper position
sensor and integration control and panel

Integration control and panel
WIRING DIAGRAM
DI936±04