2001 TOYOTA SEQUOIA Service Repair Manual

Page 2145 of 4323

TOYOTA SEQUOIA 2001  Service Repair Manual ± DIAGNOSTICSMULTIPLEX COMMUNICATION SYSTEM
DI±1943
2137 Author: Date:
2005 SEQUOIA   (RM1146U)
DTC B1271 Combination meter ECU communica-
tion stop
CIRCUIT DESCRIPTION
This DTC is indicated when

Page 2146 of 4323

TOYOTA SEQUOIA 2001  Service Repair Manual I28470
Back Door ECUCombination Meter
I19
A/C ECU
(Integration Control and Panel)
Instrument Panel J/B
I18
Ignition SW
Engine Room J/B
Instrument Panel J/B
J8
J/C F10
Fusible
Link Block
Battery
IEC6 B

Page 2147 of 4323

TOYOTA SEQUOIA 2001  Service Repair Manual ± DIAGNOSTICSMULTIPLEX COMMUNICATION SYSTEM
DI±1945
2139 Author: Date:
2005 SEQUOIA   (RM1146U)
INSPECTION PROCEDURE
1 Check combination meter.
CHECK:
Start the engine and check that the speed met

Page 2148 of 4323

TOYOTA SEQUOIA 2001  Service Repair Manual DI±1946
± DIAGNOSTICSMULTIPLEX COMMUNICATION SYSTEM
2140 Author: Date:
2005 SEQUOIA   (RM1146U)
DTC B1272 Memory seat ECU communication stop (w/
Driving position memory)
CIRCUIT DESCRIPTION
This D

Page 2149 of 4323

TOYOTA SEQUOIA 2001  Service Repair Manual I28471
Combination MeterMemory Seat ECU
& SW
Sub J/B No. 3J/C
J24
J/C
Instrument Panel J/B
F10
Fusible Link BlockI18
Ignition SW
Engine Room J/B
Battery
BHJ24
J/C J/C
J/C C5 J33 BI2 M6J34
J31 J32
3A 3

Page 2150 of 4323

TOYOTA SEQUOIA 2001  Service Repair Manual DI±1948
± DIAGNOSTICSMULTIPLEX COMMUNICATION SYSTEM
2142 Author: Date:
2005 SEQUOIA   (RM1146U)
INSPECTION PROCEDURE
1 Check power seat control system (w/ driving position memory).
CHECK:
Check th

Page 2151 of 4323

TOYOTA SEQUOIA 2001  Service Repair Manual ± DIAGNOSTICSMULTIPLEX COMMUNICATION SYSTEM
DI±1949
2143 Author: Date:
2005 SEQUOIA   (RM1146U)
DTC B1273 Sliding roof ECU communication stop
(w/ Sliding roof)
CIRCUIT DESCRIPTION
This DTC is indi

Page 2152 of 4323

TOYOTA SEQUOIA 2001  Service Repair Manual I28472
S19
Sliding Roof
Control ECUInstrument Panel J/BBody ECU
I18
Ignition SW
Instrument Panel J/B
F10
Fusible Link Block
Battery
IEJ8
J/C MPX1
E
B IGMPX3
IG1 AM11 2
AM1 ECU±IG
1F 1L 1MB7
1
6
12
1C