2001 TOYOTA SEQUOIA Service Repair Manual

Page 521 of 4323

TOYOTA SEQUOIA 2001  Service Repair Manual ± DIAGNOSTICSENGINE
DI±319
513 Author: Date:
2005 SEQUOIA   (RM1146U)
MONITOR RESULT
Refer to page DI±26 for detailed information.
The test value and test limit information are described as shown

Page 522 of 4323

TOYOTA SEQUOIA 2001  Service Repair Manual A23551
Engine Room J/BECM
E4
E4
E4
E4 B±W
IA4
IA4
IA4
IA4
IA4
EB4 ED2
ED2B±W
2H
2A68
EFI Relay
2 1
2F
1 W±B
J5
J/C A
ED
Battery Air Pump Air Switching Valve Air Injection Driver
A43 A46A415
G±RG±

Page 523 of 4323

TOYOTA SEQUOIA 2001  Service Repair Manual A23671
Port APort B
Air
A23672
Port APort B
Battery Air
± DIAGNOSTICSENGINE
DI±321
515 Author: Date:
2005 SEQUOIA   (RM1146U)
INSPECTION PROCEDURE
1 Check any other DTCs output (In addition to sec

Page 524 of 4323

TOYOTA SEQUOIA 2001  Service Repair Manual B17440
A46
Air Switching Valve Connector Wire Harness Side:
DI±322
± DIAGNOSTICSENGINE
516 Author: Date:
2005 SEQUOIA   (RM1146U)
NG  Replace air switching valve and go to step 7.
OK
3 Check volta

Page 525 of 4323

TOYOTA SEQUOIA 2001  Service Repair Manual B17444
Wire Harness Side:
Air Injection Driver Connector
A41
VV
B17440
A46
Air Switching Valve Connector Wire Harness Side:
B17444
Wire Harness Side:
Air Injection Driver Connector
A41
SIV
± DIAGNOST

Page 526 of 4323

TOYOTA SEQUOIA 2001  Service Repair Manual B17444
Wire Harness Side:
Air Injection Driver Connector
A41
SIV
B17417
E4
AIRV
DI±324
± DIAGNOSTICSENGINE
518 Author: Date:
2005 SEQUOIA   (RM1146U)
6 Check for open and short in harness and conn

Page 527 of 4323

TOYOTA SEQUOIA 2001  Service Repair Manual A16555
AIR INJ CHECK
AIR PUMP............................ON
EASV   ............................OPEN
ASV1.   .............................OPEN
ASV2...............................OPEN
A/F  BANK1........

Page 528 of 4323

TOYOTA SEQUOIA 2001  Service Repair Manual A23646
Port A
DI±326
± DIAGNOSTICSENGINE
520 Author: Date:
2005 SEQUOIA   (RM1146U)
8 Check VSV for air injection control operation.
PREPARATION:
(a) Turn the ignition switch OFF.
(b) Disconnect t