2001 TOYOTA SEQUOIA terminal TC

I28564
I18
Ignition SWInstrument Panel J/BCombination Meter
Engine Room J/B F10
Fusible LB
BatteryIGN1
AM2
AM2 IG2
2D 2C11 1C 1H
1C1J 2
11
37 56B±R B±O
W±R
BB
4 5C624
W±R DI±1658
± DIAGNOSTICSCOMBINATION METER SYSTEM
1852 Author: Date:
2005 SEQUOIA (RM1146U)
Malfunction in volt meter
CIRCUIT DESCRIPTION
The voltmeter indicates the voltage applied to the IG terminal of the combination meter.
WIRING DIAGRAM
DID96±01

I28570C6±24
DI±1660
± DIAGNOSTICSCOMBINATION METER SYSTEM
1854 Author: Date:
2005 SEQUOIA (RM1146U)
3 Inspect combination meter.
PREPARATION:
Disconnect the C6 connector of the combination meter.
CHECK:
Measure the voltage according to the value(s) in the table be-
low.
OK:
Terminal NoConditionSpecified condition
C6±24 ± Body groundIgnition switch ON10 to 14 V
NG Repair or replace harness or connector.
OK
Replace combination meter
(See page IN±35).

DID64±01
± DIAGNOSTICSSLIDING ROOF SYSTEM
DI±1661
1855 Author: Date:
2005 SEQUOIA (RM1146U)
SLIDING ROOF SYSTEM
PRECAUTION
NOTICE:
When disconnecting the battery terminal, initialize the following system after the terminal is recon-
nected.
System NameSee Page
Back Door Power Window Control SystemBE±77

DI275±12
I04611
S19
± DIAGNOSTICSSLIDING ROOF SYSTEM
DI±1665
1859 Author: Date:
2005 SEQUOIA (RM1146U)
TERMINALS OF ECU
Symbols (Terminals No.)Wiring ColorConditionSpecified Condition
MPX1 e ± (S19 ± 2 e ±)G±O e ±Multiplex communication circuit±
DWN e E
(S19 ± 3 e S19 ± 7)R±W e W±BIgnition switch ON " Sliding roof control switch TILT DOWN10 to 14 V "
Below 1 V
UP e E
(S19 ± 4 e S19 ± 7)R±Y e W±BIgnition switch ON " Sliding roof control switch TILT UP10 to 14 V "
Below 1 V
B e E
(S19 ± 5 e S19 ± 7)L±W e W±BAlways10 to 14 V
E e Body ground
(S19 ± 7 e Body ground)W±B e Body
groundAlwaysBelow 1 V
IG e E
(S19 ± 8 e S19 ± 7)B±R e W±BIgnition switch ON " Ignition switch OFF or ACC10 to 14 V "
Below 1 V
OPN e E
(S19 ± 9 e S19 ± 7)P±B e W±BIgnition switch ON " Sliding roof control switch OPEN10 to 14 V "
Below 1 V
CLS e E
(S19 ± 10 e S19 ± 7)G±Y e W±BIgnition switch ON " Sliding roof control switch CLOSE10 to 14 V "
Below 1 V

DI±1670
± DIAGNOSTICSSLIDING ROOF SYSTEM
1864 Author: Date:
2005 SEQUOIA (RM1146U)
2 Check voltage between terminals B, IG and GND of sliding roof control ECU con-
nector.
PREPARATION:
Turn ignition switch ON.
CHECK:
Measure voltage between terminals IG and GND.
OK:
Voltage: 10 to 14 V
PREPARATION:
(a) Turn ignition switch OFF.
(b) Disconnect the sliding roof control ECU connector.
CHECK:
Measure voltage between terminals B and GND.
OK:
Voltage: 10 to 14 V
OK Proceed to next circuit inspection shown on
problem symptom table (See page DI±1664).
NG
Repair or replace wire harness and connec-
tor.

I21519
I21520
± DIAGNOSTICSSLIDING ROOF SYSTEM
DI±1673
1867 Author: Date:
2005 SEQUOIA (RM1146U)
2 Check sliding roof control switch or overhead module.
PREPARATION:
Remove overhead module.
CHECK:
Check continuity between terminals when switch operated.
OK:
Switch positionTester connectionSpecified condition
SLIDE OPEN11 ± 1Continuity
SLIDE OFF11 ±1, 12 ± 1No continuity
SLIDE CLOSE12 ± 1Continuity
TILT DOWN10 ± 1Continuity
TILT OFF9 ± 1, 12 ± 1No continuity
TILT UP9 ± 1Continuity
PREPARATION:
Remove sliding roof control switch.
CHECK:
Check continuity between terminals when switch operated.
OK:
Switch positionTester connectionSpecified condition
SLIDE OPEN3 ± 5Continuity
SLIDE OFF3 ± 4, 3 ± 5No continuity
SLIDE CLOSE3 ± 4Continuity
TILT DOWN2 ± 3Continuity
TILT OFF1 ± 3, 2 ± 3No continuity
TILT UP1 ± 3Continuity
NG Replace sliding roof control switch or overhead
module.
OK

DID97±01
DI±1678
± DIAGNOSTICSBODY CONTROL SYSTEM
1872 Author: Date:
2005 SEQUOIA (RM1146U)
BODY CONTROL SYSTEM
PRECAUTION
NOTICE:
When disconnecting the battery terminal, initialize the following system after the terminal is recon-
nected.
System NameSee Page
Back Door Power Window Control SystemBE±77

DI1OG±31
I27698
B5B6
B7 BODY CONTROL ECU:
DI±1688
± DIAGNOSTICSBODY CONTROL SYSTEM
1882 Author: Date:
2005 SEQUOIA (RM1146U)
TERMINALS OF ECU
Symbols (Terminals No.)Wiring ColorTerminal DescriptionConditionSpecified Condition
KSW ± GND1
(B5±13 ± B6±6)Y±G ± W±BKey unlock warning
switch signalKey unlock warning switch ON
(Key inserted)Below 1 V
KSW ± GND1
(B5±13 ± B6±6)Y±G ± W±BKey unlock warning
switch signalKey unlock warning switch OFF
(Key not inserted)10 to 14 V
KSW2 ± GND1
(B5±15 ± B6±6)Y±G ± W±B
Key unlock warning
switch signal (Immobi-
lizer)Key unlock warning switch ON
(Key inserted)Below 1 V
KSW2 ± GND1
(B5±15 ± B6±6)Y±G ± W±B
Key unlock warning
switch signal (Immobi-
lizer)Key unlock warning switch OFF
(Key not inserted)10 to 14 V
HR ± GND1
(B7±18 ± B6±6)W±R ± W±BHorn switch signalHorn switch ONBelow 1 V
HR ± GND1
(B7±18 ± B6±6)W±R ± W±BHorn switch signalHorn switch OFF10 to 14 V
BDN ± GND1
(B6±15 ± B6±6)P±L ± W±BBack door power win-
dow motor (DOWN)Back door power window switch
DOWN positionBelow 1 V
BDN ± GND1
(B6±15 ± B6±6)P±L ± W±BBack door power win-
dow motor (DOWN)Back door power window switch
OFF or UP position10 to 14 V
BUP ± GND1
(B6±14 ± B6±6)W ± W±BBack door power win-
dow motor (UP)Back door power window switch
UP positionBelow 1 V
BUP ± GND1
(B6±14 ± B6±6)W ± W±BBack door power win-
dow motor (UP)Back door power window switch
OFF or DOWN position10 to 14 V
ACC ± GND1
(B7±10 ± B6±6)GR ± W±BIgnition switch (ACC)Ignition switch OFFBelow 1 V
ACC ± GND1
(B7±10 ± B6±6)GR ± W±BIgnition switch (ACC)Ignition switch ACC or ON10 to 14 V
BECU ± GND1
(B6±5 ± B6±6)W±R ± W±BBatteryAlways10 to 14 V
RLCY ± GND1
(B7±7 ± B6±6)R±W ± W±BCourtesy light switch
(Rear LH)Rear LH door courtesy light
switch ON (Open)Below 1 V
RLCY ± GND1
(B7±7 ± B6±6)R±W ± W±BCourtesy light switch
(Rear LH)Rear LH door courtesy light
switch OFF (Closed)10 to 14 V
RRCY ± GND1
(B5±8 ± B6±6)R±W ± W±BCourtesy light switch
(Rear RH)Rear RH door courtesy light
switch ON (Open)Below 1 V
RRCY ± GND1
(B5±8 ± B6±6)R±W ± W±BCourtesy light switch
(Rear RH)Rear RH door courtesy light
switch OFF (Closed)10 to 14 V
PCTY ± GND1
(B5±22 ± B6±6)LG±B ± W±BCourtesy light switch
(Front RH)Passenger door courtesy light
switch ON (Open)Below 1 V