2001 TOYOTA SEQUOIA Service Repair Manual

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Page 1809 of 4323

TOYOTA SEQUOIA 2001 Service Repair Manual ± DIAGNOSTICSCOMBINATION METER SYSTEM
DI±1607
1801 Author: Date:
2005 SEQUOIA (RM1146U)Driver door control ECU
Combination meter
Body control ECU
Passenger door control ECU
Seat control ECU

Page 1810 of 4323

TOYOTA SEQUOIA 2001 Service Repair Manual DID8Q±01
DI±1608
± DIAGNOSTICSCOMBINATION METER SYSTEM
1802 Author: Date:
2005 SEQUOIA (RM1146U)
SYSTEM DESCRIPTION
1. METER GAUGE AND WARNING/INDICATOR
GAUGE:
ItemDetail
SpeedometerVehicle spe

DID8Q±01
DI±1608
± DIAGNOSTICSCOMBINATION METER SYSTEM
1802 Author: Date:
2005 SEQUOIA (RM1146U)
SYSTEM DESCRIPTION
1. METER GAUGE AND WARNING/INDICATOR
GAUGE:
ItemDetail
SpeedometerVehicle speed sensor (Direct line).
TachometerECM transmits engine speed to the meter to display.
ODO/TRIP MeterCombination meter assy.
FuelDisplays a fuel level according to a signal from the fuel sender gauge (Direct line).
Water TemperatureDisplays engine coolant temperature according to a signal from the ECM (BEAN).
Oil PressureReceives a signal from the oil pressure sender (Direct line).
Volt MeterDisplays vehicle voltage according to a voltage from the IG terminal (Direct line).
WARNING/INDICATOR:
HINT:
Combination meter bulb check is performed for 3 seconds after the ignition switch is turned ON.
ItemDetailList of indicators available for
bulb check
O/D OFFReceives a signal from the ECM (Direct line)±
TURNTurns signal switch ON (Direct line)±
BEAMReceives a signal from the body ECU (*1), Displays a signal received from the
dimmer switch (*2) (Direct line)±
SECURITYReceives a set signal from the transponder key ECU and body ECU (Direct line)±
CHARGEReceives a malfunction signal from the alternator (Direct line)
AIR BAGReceives a malfunction signal from the airbag sensor center (Direct line)
D SEAT BELTReceives the driver seat belt signal (Unfastened) from the seat belt inner front LH
(Direct line)±
DOOROpen door indicator comes on when a signal is received from the ECU (BEAN)
from each door±
A/T OIL TEMP.Warning is displayed when the oil temperature is high (Direct line)
BRAKEComes on when the parking brake switch is on or the brake fluid level warning
switch is on (Direct line)
MIL (CHECK ENGINE)Receives a malfunction signal from the ECM (Direct line)
FUEL WARNINGReceives the fuel empty signal from the fuel sender gauge (Direct line)±
ABSReceives a malfunction signal from the skid control ECU (Direct line)
WASHERWarning is displayed when the washer level is low (Direct line)±
CRUISEReceives a CRUISE on signal or malfunction signal from the ECM (Direct line)±
VSC TRACReceives a malfunction signal from the skid control ECU (Direct line)
VSC (TRAC) OFFReceives a malfunction signal from the translate ECU (Direct line)
SLIPReceives a malfunction signal from the translate ECU (Direct line)
4HIReceives a 4HI signal from the 4WD control ECU (Direct line)±
CTR DIF LOCKReceives a DIF LOCK signal from the 4WD control ECU (Direct line)±
A/T PReceives a P signal from the park/neutral position switch (Direct line)±
A/T NReceives an N signal from the park/neutral position switch (Direct line)±
A/T DReceives a D signal from the park/neutral position switch (Direct line)±
A/T 3Receives a 3 signal from the park/neutral position switch (Direct line)±
A/T 2Receives a 2 signal from the park/neutral position switch (Direct line)±
A/T LReceives an L signal from the park/neutral position switch (Direct line)±

Page 1811 of 4323

TOYOTA SEQUOIA 2001 Service Repair Manual ± DIAGNOSTICSCOMBINATION METER SYSTEM
DI±1609
1803 Author: Date:
2005 SEQUOIA (RM1146U)A/T R
Receives an R signal from the park/neutral position switch (Direct line)±
TAIL/HEADReceives a dimmer

± DIAGNOSTICSCOMBINATION METER SYSTEM
DI±1609
1803 Author: Date:
2005 SEQUOIA (RM1146U)A/T R
Receives an R signal from the park/neutral position switch (Direct line)±
TAIL/HEADReceives a dimmer signal from the body ECU (BEAN)±
TIRE PRESSUREReceives a low tire pressure signal from the tire pressure monitor ECU (Direct line)
4LOReceives a 4LO signal from the 4WD control ECU (Direct line)±
MAIN REQD (Blinks)Blinks when 4,500 miles have been traveled, after ODO/TRIP switch is set (Direct
line)
MAIN REQD (Comes on)Blinks when 5,000 miles have been traveled, after ODO/TRIP switch is set (Direct
line)
RSCA OFFReceives an RSCA OFF signal from the airbag sensor center (Direct line)
HIReceives a suspension position HI signal from the suspension control ECU (Direct
line)
NReceives a suspension position N signal from the suspension control ECU (Direct
line)
LOReceives a suspension position LO signal from the suspension control ECU (Direct
line)
AHC MAN.Receives a suspension control manual signal from the suspension control ECU
(Direct line)
*1: w/ Day time running light
*2: w/o Day time running light
BUZZER:
ItemDetail
Key ReminderBuzzer is ON: Ignition switch is OFF, key is inserted, and door is open.
Fasten BeltBuzzer is ON: Ignition switch is ON and seat belt is unfastened.
2. COMBINATION METER IN SEQUOIA HAS THE FOLLOWING FEATURES:
(a) Built±in buzzer for the reminder system (key and seat belt)
(b) Integrated trip and odometer knobs
Press and release knob to scroll through trip ºAº, trip ºBº, and odometer features.
Press and hold the trip knob to reset trip meter functions.
(c) Oil maintenance indicator
When 4,500 miles have been traveled, after the ODO/TRIP switch is set, the maintenance indica-
tor begins to blink for 15 seconds after the ignition switch is turned to the ON position.
When 5,000 miles have been traveled, after the ODO/TRIP switch is set, the maintenance indica-
tor comes on.
Press and hold the trip knob to reset the oil maintenance indicator.
(d) Rotate knob to adjust interior illumination

Page 1812 of 4323

TOYOTA SEQUOIA 2001 Service Repair Manual DID8R±01
DI±1610
± DIAGNOSTICSCOMBINATION METER SYSTEM
1804 Author: Date:
2005 SEQUOIA (RM1146U)
HOW TO PROCEED WITH TROUBLESHOOTING
1 Vehicle Brought To Workshop
NEXT
2 Customer Problem Analys

Page 1813 of 4323

TOYOTA SEQUOIA 2001 Service Repair Manual ± DIAGNOSTICSCOMBINATION METER SYSTEM
DI±1611
1805 Author: Date:
2005 SEQUOIA (RM1146U)
6 Problem Symptoms Table (See page DI±1614)
NEXT
7 Circuit Inspection (See page DI±1628 to DI±1658)
NEX

Page 1814 of 4323

TOYOTA SEQUOIA 2001 Service Repair Manual DID8S±01
/ /
/ /
COMBINATION METER SYSTEM Check Sheet
Inspector s name:
Customer s NameVIN
Production Date
Li

Page 1815 of 4323

TOYOTA SEQUOIA 2001 Service Repair Manual DID8T±01
± DIAGNOSTICSCOMBINATION METER SYSTEM
DI±1613
1807 Author: Date:
2005 SEQUOIA (RM1146U)
CUSTOMIZE PARAMETERS
HINT:
The following can be customized.
NOTICE:
After confirming whether th

Page 1816 of 4323

TOYOTA SEQUOIA 2001 Service Repair Manual DID8U±01
DI±1614
± DIAGNOSTICSCOMBINATION METER SYSTEM
1808 Author: Date:
2005 SEQUOIA (RM1146U)
PROBLEM SYMPTOMS TABLE
HINT:
Inspect the related ºFuseº and ºRelayº before confirming the su

DID8U±01
DI±1614
± DIAGNOSTICSCOMBINATION METER SYSTEM
1808 Author: Date:
2005 SEQUOIA (RM1146U)
PROBLEM SYMPTOMS TABLE
HINT:
Inspect the related ºFuseº and ºRelayº before confirming the suspected area as shown in the table below.
MALFUNCTION SYSTEM:
SymptomSuspected AreaSee page
Entire combination meter does not operate.Refer to troubleshooting proceduresDI±1628
Operating light control rheostat does not change light brightness.Refer to troubleshooting proceduresDI±1645
Seat belt warning does not operate.Refer to troubleshooting proceduresDI±1650
Key reminder warning buzzer does not sound.
1. Multiplex communication system
2. Key unlock warning switch circuit
3. Door courtesy lamp switch circuit
4. Combination meter assyDI±1892
DI±1715
DI±1728
IN±35
METER GAUGES:
SymptomSuspected AreaSee page
Malfunction in speedometerRefer to troubleshooting proceduresDI±1632
Malfunction in tachometerRefer to troubleshooting proceduresDI±1636
Malfunction in fuel receiver gaugeRefer to troubleshooting proceduresDI±1640
Malfunction in engine coolant temperature receiver gaugeRefer to troubleshooting proceduresDI±1644
Malfunction in oil pressure receiver gaugeRefer to troubleshooting proceduresDI±1654
Malfunction in volt meterRefer to troubleshooting proceduresDI±1658
WARNING LIGHTS:
SymptomSuspected AreaSee page
Check engine warning light (MIL) does not come on.
1. ECM
2. Wire harness or connector
3. Combination meter assyDI±9
±
IN±35
Discharge warning light does not come on.
1. ECM
2. Wire harness or connector
3. Combination meter assyDI±9
±
IN±35
Brake warning light does not come on.
1. Skid control ECU
2. Wire harness or connector
3. Combination meter assyDI±895
±
IN±35
ABS warning light does not come on.
1. Skid control ECU
2. Wire harness or connector
3. Combination meter assyDI±895
±
IN±35
SRS warning light does not come on.
1. Airbag sensor assy
2. Wire harness or connector
3. Combination meter assyDI±1126
±
IN±35
Open door warning light does not come on.
1. Door courtesy light switch circuit
2. Wire harness or connector
3. Combination meter assy
4. Body ECUDI±1728
±
IN±35
IN±35
Fuel level warning light does not come on.
1. Refer to troubleshooting
2. Wire harness or connector
3. Combination meter assyDI±1640
±
IN±35
Low oil pressure warning light does not come on.
1. Low oil pressure warning switch
2. Wire harness or connector
3. Combination meter assyBE±55
±
IN±35

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