2001 TOYOTA SEQUOIA Service Repair Manual

Page 2137 of 4323

TOYOTA SEQUOIA 2001  Service Repair Manual I26946
Airbag Sensor Assembly Body ECU
A2018
GSW16
B6GSW Instrument Panel J/B
1A7
1B3
GR±R
B
± DIAGNOSTICSMULTIPLEX COMMUNICATION SYSTEM
DI±1935
2129 Author: Date:
2005 SEQUOIA   (RM1146U)
DTC B1

Page 2138 of 4323

TOYOTA SEQUOIA 2001  Service Repair Manual DI±1936
± DIAGNOSTICSMULTIPLEX COMMUNICATION SYSTEM
2130 Author: Date:
2005 SEQUOIA   (RM1146U)
INSPECTION PROCEDURE
1 Check for open and short in wire harness and connector between body ECU and
a

Page 2139 of 4323

TOYOTA SEQUOIA 2001  Service Repair Manual I24369
A27
Automatic Light Control
Sensor
B6 12
CLTB CLTS
CLTEBody ECU
R±GY
1 4
34
3
BRB6
B6 CLTB CLTS
CLTE
± DIAGNOSTICSMULTIPLEX COMMUNICATION SYSTEM
DI±1937
2131 Author: Date:
2005 SEQUOIA   (

Page 2140 of 4323

TOYOTA SEQUOIA 2001  Service Repair Manual DI±1938
± DIAGNOSTICSMULTIPLEX COMMUNICATION SYSTEM
2132 Author: Date:
2005 SEQUOIA   (RM1146U)
INSPECTION PROCEDURE
1 Check automatic light control sensor.
Using hand±held tester:
PREPARATION:
(

Page 2141 of 4323

TOYOTA SEQUOIA 2001  Service Repair Manual ± DIAGNOSTICSMULTIPLEX COMMUNICATION SYSTEM
DI±1939
2133 Author: Date:
2005 SEQUOIA   (RM1146U)
2 Check wire harness and connector between automatic light control sensor and
body ECU.
PREPARATION:

Page 2142 of 4323

TOYOTA SEQUOIA 2001  Service Repair Manual DI±1940
± DIAGNOSTICSMULTIPLEX COMMUNICATION SYSTEM
2134 Author: Date:
2005 SEQUOIA   (RM1146U)
DTC B1262 A/C ECU communication stop
CIRCUIT DESCRIPTION
This DTC is indicated when communication fa

Page 2143 of 4323

TOYOTA SEQUOIA 2001  Service Repair Manual I28469
I19
Integration Control
and Panel
Body ECU
I18
Ignition SW Combination Meter
F10
FL Block
To Ignition
Switch J43
J/C
IG BatteryDOME ALTAM1CIG
ACC
AM1
Short Pin
J/CMPX±
ACC
+B MPX+ MPX2
IG+
GND

Page 2144 of 4323

TOYOTA SEQUOIA 2001  Service Repair Manual DI±1942
± DIAGNOSTICSMULTIPLEX COMMUNICATION SYSTEM
2136 Author: Date:
2005 SEQUOIA   (RM1146U)
INSPECTION PROCEDURE
1 Check air conditioning system.
CHECK:
Check the operation of the air conditio