Ts terminal TOYOTA SEQUOIA 2001 Service User Guide

Z17007
Fig. 4
Sensor
21A
C
1
1
22B5V
5V
5V
0V
Z17008
Fig. 5
2 1A C
1
1
22
BSHORT
Z17009
Fig. 6
21A C
1
1
22
BSensorECU IN±38
± INTRODUCTIONHOW TO TROUBLESHOOT ECU CONTROLLED
SYSTEMS
38 Author: Date:
2005 SEQUOIA (RM1146U)
(b) Check the voltage.
In a circuit in which voltage is applied (to the ECU connec-
tor terminal), an open circuit can be checked by conduct-
ing a voltage check.
As shown in Fig. 4, with each connector still con-
nected, measure the voltage between body ground
and terminal 1 of connector ºAº at the ECU 5V out-
put terminal, terminal 1 of connector ºBº, and termi-
nal 1 of connector ºCº, in that order.
If the results are:
5V: Between Terminal 1 of connector ºAº and Body Ground
5V: Between Terminal 1 of connector ºBº and Body Ground
0V: Between Terminal 1 of connector ºCº and Body Ground
Then it is found out that there is an open circuit in the wire har-
ness between terminal 1 of ºBº and terminal 1 of ºCº.
7. CHECK SHORT CIRCUIT
If the wire harness is shorted as in Fig. 5, locate the section by
conducting a ºcontinuity check with groundº.
Check the continuity with ground.
(1) Disconnect connectors ºAº and ºCº and measure
the resistance between terminals 1 and 2 of con-
nector ºAº and body ground.
In the case of Fig. 6:
Between terminal 1 of connector ºAº and body
ground " Continuity (short)
Between terminal 2 of connector ºAº and body
ground " No continuity
Therefore, it is found out that there is a short circuit
between terminal 1 of connector ºAº and terminal 1
of connector ºCº.

Z17808
Fig. 7
Sensor
21A B1 C
1
1
221
2 B2
ECU
IN0383
Example
Ground
IN0384
Ground
Ground
ECU Side
W/H Side
± INTRODUCTIONHOW TO TROUBLESHOOT ECU CONTROLLED
SYSTEMSIN±39
39 Author: Date:
2005 SEQUOIA (RM1146U)
(2) Disconnect connector ºBº and measure the resis-
tance between terminal 1 of connector ºAº and body
ground, and terminal 1 of connector ºB2º and body
ground.
In the case of Fig. 7:
Between terminal 1 of connector ºAº and body
ground " No continuity
Between terminal 1 of connector ºB2º and body
ground " Continuity (short)
Therefore, it is found out that there is a short circuit
between terminal 1 of connector ºB2º and terminal
1 of connector ºCº.
8. CHECK AND REPLACE ECU
First check the ECU ground circuit. If it is faulty, repair it. If it is
normal, the ECU could be faulty, so replace the ECU with a nor-
mal functioning one and check that the symptoms appear.
(1) Measure the resistance between the ECU ground
terminal and the body ground.
Resistance: 1 W or less
(2) Disconnect the ECU connector, check the ground
terminals on the ECU side and the wire harness
side for bend and check the contact pressure.

SS0OQ±12
SS±4
± SERVICE SPECIFICATIONSENGINE MECHANICAL
146 Author: Date:
2005 SEQUOIA (RM1146U)
ENGINE MECHANICAL
SERVICE DATA
Compression
pressureat 250 rpm STD
Minimum
Difference of pressure between each cylinder1,373 kPa (14.0 kgf/cm2, 199 psi) or more
1,030 kPa (10.5 kgf/cm2, 149 psi)
98 kPa (1.0 kgf/cm2, 14 psi) or less
Valve
clearanceat cold Intake
Exhaust
Valve clearance adjusting shim No.00
No.02
No.04
No.06
No.08
No.10
No.12
No.14
No.16
No.18
No.20
No.22
No.24
No.26
No.28
No.30
No.32
No.34
No.36
No.38
No.40
No.42
No.44
No.46
No.48
No.50
No.52
No.54
No.56
No.58
No.60
No.62
No.64
No.66
No.68
No.70
No.72
No.74
No.76
No.78
No.800.15 to 0.25 mm (0.006 to 0.010 in.)
0.25 to 0.35 mm (0.010 to 0.014 in.)
2.000 mm (0.0787 in.)
2.020 mm (0.0795 in.)
2.040 mm (0.0803 in.)
2.060 mm (0.0811 in.)
2.080 mm (0.0819 in.)
2.100 mm (0.0827 in.)
2.120 mm (0.0835 in.)
2.140 mm (0.0843 in.)
2.160 mm (0.0850 in.)
2.180 mm (0.0858 in.)
2.200 mm (0.0866 in.)
2.220 mm (0.0874 in.)
2.240 mm (0.0882 in.)
2.260 mm (0.0890 in.)
2.280 mm (0.0898 in.)
2.300 mm (0.0906 in.)
2.320 mm (0.0913 in.)
2.340 mm (0.0921 in.)
2.360 mm (0.0929 in.)
2.380 mm (0.0937 in.)
2.400 mm (0.0945 in.)
2.420 mm (0.0953 in.)
2.440 mm (0.0961 in.)
2.460 mm (0.0969 in.)
2.480 mm (0.0976 in.)
2.500 mm (0.0984 in.)
2.520 mm (0.0992 in.)
2.540 mm (0.1000 in.)
2.560 mm (0.1008 in.)
2.580 mm (0.1016 in.)
2.600 mm (0.1024 in.)
2.620 mm (0.1031 in.)
2.640 mm (0.1039 in.)
2.660 mm (0.1047 in.)
2.680 mm (0.1055 in.)
2.700 mm (0.1063 in.)
2.720 mm (0.1071 in.)
2.740 mm (0.1079 in.)
2.760 mm (0.1087 in.)
2.780 mm (0.1094 in.)
2.800 mm (0.1102 in.)
Ignition timingw/ Terminals TC and E1 connected of DLC15 to15° BTDC @ idle
Idle speed±700 ± 50 rpm
Timing belt
tensionerProtrusion from housing end10.5 to 11.5 mm (0.413 to 0.453 in.)

SS0PL±02
± SERVICE SPECIFICATIONSSTARTING
SS±21
163 Author: Date:
2005 SEQUOIA (RM1146U)
TORQUE SPECIFICATION
Part tightenedN´mkgf´cmft´lbf
Terminal 30 nut, Terminal C nut x Terminal bolt1717013
End cover x Magnetic switch housing3.63732 in.´lbf
End cover x Brush holder3.83934 in.´lbf
Starter hosing x Magnetic switch9.39582 in.´lbf
End cover with field frame x Magnetic switch9.39582 in.´lbf
Lead wire of field coil x Terminal C5.96052 in.´lbf
Wire clamp, Starter wire x Starter9.8110087 in.´lbf
Starter x Cylinder block3940029

DID7M±01
± DIAGNOSTICSENGINE
DI±1
195 Author: Date:
2005 SEQUOIA (RM1146U)
ENGINE
PRECAUTION
NOTICE:

When disconnecting the battery terminal, initialize the following system after the terminal is re-
connected.
System NameSee Page
Back Door Power Window Control SystemBE±77

Perform the RESET MEMORY (AT initialization) when replacing the automatic transmission as-
sembly, engine assembly or ECM (See page DI±543).
HINT:
Initialization can not be completed by only removing the battery.

DID7Q±01
B17429
ECM
IG SW
IGSW
STSW
STAR/NSW
STA
BATT
MREL
+BM
+B
+B2
VCPA
VPA
EPA
VCP2
VPA2
EPA2W
OC1+
OC1±
OC2+
OC2±
KNK1
EKNK
KNK2
EKN2
G2+
G2±
NE+
NE±
VV1+
VV1±
VV2+
VV2± ETCSMIL
To Battery
To Battery
To Battery
To BatteryTo Starter ST Relay
PNP SW
EFI No.1
EFI No.1 Relay
Acclererator Pedal
Position SensorCombination Meter
VVT OCV
(Bank 1)
VVT OCV
(Bank 2)
Knock Sensor
(Bank 1)
Knock Sensor
(Bank 2)
Camshaft Position
SensorTo V C
Terminal
Crankshaft
Position Sensor
VVT Sensor
(Bank 1)
VVT Sensor
(Bank 2) DI±6
± DIAGNOSTICSENGINE
200 Author: Date:
2005 SEQUOIA (RM1146U)
SYSTEM DIAGRAM

B17430
HA1A
A1A+
A1A±
HA2A
A2A+
A2A±
HT1B
OXIB
HT2B
OX2B
E2
PRG
ACIS
AIV1
AIV2
THA
E2G
VG
E2
THW
PPMP
VPMP
MPMP#10
#20
#30
#40
#50
#60
#70
#80
IGT1
IGT2
IGT3
IGT4
IGT5
IGT6
IGT7
IGT8
IGF1
IGF2 To A/F Relay
A/F Sensor
(Bank 1 Sensor 1)
A/F Sensor
(Bank 2 Sensor 1)
HO2 Sensor
(Bank 1 Sensor 2)
HO2 Sensor
(Bank 2 Sensor 2) To EFI Relay
To EFI No.2
Fuse
VSV (EVAP)
VSV (ACIS)
VSV (AI Control)
VSV (AI Control)
Mass Air Flow
Meter
ETC Sensor
Pump Modul
Pressure
Sensor
Control
Valve To VC
TerminalTo Battery
IGN2
Fuel Injector #1
Fuel Injector #2
Fuel Injector #3
Fuel Injector #4
Fuel Injector #5
Fuel Injector #6
Fuel Injector #7
Fuel Injector #8
Ignition Coil and
Igniter No.1
Ignition Coil and
Igniter No.2
Ignition Coil and
Igniter No.3
Ignition Coil and
Igniter No.4
Ignition Coil and
Igniter No.5
Ignition Coil and
Igniter No.6
Ignition Coil and
Igniter No.7
Ignition Coil and
Igniter No.8
± DIAGNOSTICSENGINE
DI±7
201 Author: Date:
2005 SEQUOIA (RM1146U)

B17431
AIDI
AIRP
AIRV
AIP
GE01
M+
M±
VTA1
VC
VTA2
FC
FPRACCR
ST1±
STP
E01
E02
E04
E05
E1
E03
ME01
EC
EOM
TC
CANL
CANH
IMI
IMODLC3
CG
TC
CANL
CANH ASVAI Driver To EFI Relay
To Battery
To Battery
To Battery To E2
TerminalTo E2
TerminalTo IG SW
Air Pump
Pressure
Sensor
Throttle Body
C/OPN Relay
Fuel Pump Relay
Fuel Pump Resister
Fuel PumpTransponder Key
Computre Stop Light SW
To IGN1 Fuse
To EFI
RelayACC Cut Relay
To Battery DI±8
± DIAGNOSTICSENGINE
202 Author: Date:
2005 SEQUOIA (RM1146U)

DID7R±01
± DIAGNOSTICSENGINE
DI±11
205 Author: Date:
2005 SEQUOIA (RM1146U)
CHECK FOR INTERMITTENT PROBLEMS
HINT:
Hand±held tester only:
Inspect the vehicle's ECM using check mode. Intermittent problems are easier to detect with a hand±held
tester when the ECM is in check mode. In check mode, the ECM uses 1trip detection logic, which is more
sensitive to malfunctions than normal mode (default), which uses 2 trip detection logic.
(d) Clear DTCs (see page DI±43).
(e) Switch the ECM from normal mode to check mode using a hand±held tester (see page DI±44).
(f) Perform a simulation test (see page IN±24).
(g) Check and wiggle the harness(es), connector(s) and terminal(s) (see page IN±35).

DIDFO±01
B17410
E5 E6
E7 E8E4 DI±34
± DIAGNOSTICSENGINE
228 Author: Date:
2005 SEQUOIA (RM1146U)
TERMINALS OF ECM
Each ECM terminals' standard voltage is shown in the table below. In the table, first follow the information
under ºConditionº.
Look under ºSymbols (Terminals No.)º for the terminals to be inspected.
The standard voltage between the terminals is shown under ºSTD Voltageº.
Use the illustration above as a reference for the ECM terminals.
Symbols (Terminals No.)Wiring ColorConditionSTD Voltage
BATT (E4±3) ± E1 (E6±1)B±Y ± BRAl9t 14V+BM (E4±7) ± E1 (E6±1)W±G ± BRAlways9 to 14 V
IGSW (E4±9) ± E1 (E6±1)B±O ± BR
+B (E4±1) ± E1 (E6±1)B±R ± BRIG switch ON9 to 14 V
+B2 (E4±2) ± E1 (E6±1)B±R ± BR
IG switch ON9 to 14 V
MREL (E4±8) ± E1 (E6±1)B±W ± BRIG switch ON9 to 14 V
VC (E8±23) ± E2 (E8±28)G±B ± G±WIG switch ON4.5 to 5.5 V
VG (E8±30) ± E2G (E8±29)R±W ± B±WIdling, P or N position, A/C switch OFF0.5 to 3.0 V
THA (E8±22) ± E2 (E8±28)Y±G ± G±WIdling, Intake air temp. 20°C (68°F)0.5 to 3.4 V
THW (E8±21) ± E2 (E8±28)G±Y ± G±WIdling, Engine coolant temp. 80°C (176°F)0.2 to 1.0 V
VTA1 (E8 20) E2 (E8 28)BY GWIG switch ON, Accelerator pedal released0.5 to 1.2 VVTA1 (E8±20) ± E2 (E8±28)B±Y ± G±WIG switch ON, Accelerator pedal depressed3.2 to 4.8 V
VTA2 (E8 19) E2 (E8 28)PL GWIG switch ON, Accelerator pedal released2.0 to 3.1 VVTA2 (E8±19) ± E2 (E8±28)P±L ± G±WIG switch ON, Accelerator pedal depressed4.7 to 5.1 V
VPA (E4 18) E2 (E8 28)GR GWIG switch ON, Accelerator pedal released0.3 to 0.9 VVPA (E4±18) ± E2 (E8±28)G±R ± G±WIG switch ON, Accelerator pedal depressed3.2 to 4.8 V
VPA2 (E4 19) E2 (E8 28)LY GWIG switch ON, Accelerator pedal released1.8 to 2.7 VVPA2 (E4±19) ± E2 (E8±28)L±Y ± G±WIG switch ON, Accelerator pedal depressed4.7 to 5.1 V
VCPA (E4±26) ± EPA (E4±20)G±B ± G±WIG switch ON4.5 to 5.5 V
VCP2 (E4±27) ± EPA2 (E4±21)L±R ± L±BIG switch ON4.5 to 5.5 V