2001 TOYOTA SEQUOIA Service Repair Manual

Page 945 of 4323

TOYOTA SEQUOIA 2001  Service Repair Manual F16805
S25
Suspension  Control ECU 
Wire Harness View:
SLRR
F19436
Height Control Valve 
Wire Harness View:
H16
321
± DIAGNOSTICSAIR SUSPENSION SYSTEM
DI±743
937 Author: Date:
2005 SEQUOIA   (RM11

Page 946 of 4323

TOYOTA SEQUOIA 2001  Service Repair Manual F19455
Suspension Control ECU Exhaust Solenoid Valve
(Height Control Compressor)
L±R5
BM2SLEX 14
IN11
S25
BI W±B 2 H14
H14L±R L±R DI±744
± DIAGNOSTICSAIR SUSPENSION SYSTEM
938 Author: Date:
20

Page 947 of 4323

TOYOTA SEQUOIA 2001  Service Repair Manual F19457
Connector Front View:
± DIAGNOSTICSAIR SUSPENSION SYSTEM
DI±745
939 Author: Date:
2005 SEQUOIA   (RM1146U)
INSPECTION PROCEDURE
HINT:
If DTC C1761/61 (ECU malfunction) and/or C1774/74 (pow

Page 948 of 4323

TOYOTA SEQUOIA 2001  Service Repair Manual F16805
S25
Suspension  Control ECU 
Wire Harness View:
SLEX
F19459
Height Control Compressor 
Connector Front View:
H14
DI±746
± DIAGNOSTICSAIR SUSPENSION SYSTEM
940 Author: Date:
2005 SEQUOIA   (

Page 949 of 4323

TOYOTA SEQUOIA 2001  Service Repair Manual ± DIAGNOSTICSAIR SUSPENSION SYSTEM
DI±747
941 Author: Date:
2005 SEQUOIA   (RM1146U)
DTC C1741/41 Air Sus Relay Circuit
CIRCUIT DESCRIPTION
When the ºUPº side of the height control switch is pre

Page 950 of 4323

TOYOTA SEQUOIA 2001  Service Repair Manual F19443
Height Control
Compressor
H131
Engine Room R/B No. 2
G±Y AIR SUS Relay
Battery J28
J/C W
BM21
IC48
IA121
WWW
2
22
2 3
25
1W
9B
5
W±B
J8
J/C
AAW±B
1K12
1F9
A W±B
IESuspension
Control
ECU
IA1

Page 951 of 4323

TOYOTA SEQUOIA 2001  Service Repair Manual ± DIAGNOSTICSAIR SUSPENSION SYSTEM
DI±749
943 Author: Date:
2005 SEQUOIA   (RM1146U)
INSPECTION PROCEDURE
HINT:
If DTC C1761/61 (ECU malfunction) and/or C1774/74 (power source circuit) is display

Page 952 of 4323

TOYOTA SEQUOIA 2001  Service Repair Manual F19458
DI±750
± DIAGNOSTICSAIR SUSPENSION SYSTEM
944 Author: Date:
2005 SEQUOIA   (RM1146U)
2 Inspect AIR SUS relay.
PREPARATION:
Remove the AIR SUS relay from the engine room R/B No. 2.
CHECK:
Ch