2001 TOYOTA SEQUOIA battery

D14218
ECM
R
D
2 3 E78
STAR/NSW
11
E5
E521
E519
E510 J52
J52
J52
J52
J52
J52 J/C
J51
J51
J51
J51
J51
J51B
L±Y
B±Y
W±R
L
LG LGL W±RB±YL±Y
L±R
L±R
B±Y W±L
W BG±R* G±R P
PL
RL
NL
DL
2L
LL IG49
1D 1C
IPOGAUGE
IG1
AM1 74
8
7
1C
1L16AM1
2 1 ALT
BatteryF10
FL BlockCowl Side J/B LHI18
Ignition SW Cowl Side J/B RHTo 4WD Control ECU
To Translate ECU To Starter RelayP1
Park/Neutral Position SW
*: 4WD 21 N
8 54
5
6
1
9
7
3
8AEG GF HA H
C C
F
E
2
RB DI±578
± DIAGNOSTICSAUTOMATIC TRANSMISSION
772 Author: Date:
2005 SEQUOIA (RM1146U)
WIRING DIAGRAM

D14163
ECM
SP2+
SP2± 34
26
Y±R W±R
1 2E7
E7
E1 V2
Vehicle Speed Sensor (SP2)
± DIAGNOSTICSAUTOMATIC TRANSMISSION
DI±597
791 Author: Date:
2005 SEQUOIA (RM1146U)
MONITOR DESCRIPTION
The output speed sensor SP2 monitors the output shaft speed. The ECM controls the gearshift point and
the lock up timing based on the signals from the output speed sensor SP2 and throttle position sensor.
If the ECM detects no signal from the output shaft speed sensor SP2 even while the vehicle is moving, it
will conclude that is a malfunction of the output speed sensor SP2. The ECM will illuminate the MIL and set
a DTC.
MONITOR STRATEGY
Related DTCsP0722Speed sensor SP2/Verify pulse input
Required sensors/ComponentsSpeed sensor SP2
Frequency of operationContinuous
Duration500 output shaft revolution
MIL operationImmediate
Sequence of operationNone
TYPICAL ENABLING CONDITIONS
ItSpecificationItemMinimumMaximum
The monitor will run whenever this DTC is
not present.See page DI±545
Vehicle speed sensor pulse input4
Vehicle speed range (4 sec. or more)9 km/h (5.59 mph) or more±
NSW switchOFF
Battery voltage8 V or more±
Ignition switchON
StarterOFF
TYPICAL MALFUNCTION THRESHOLDS
Detection criteriaThreshold
Output speed sensor pulse inputNo input
WIRING DIAGRAM

DI±600
± DIAGNOSTICSAUTOMATIC TRANSMISSION
794 Author: Date:
2005 SEQUOIA (RM1146U)
DTC P0724 Brake Switch ºBº Circuit High
CIRCUIT DESCRIPTION
The purpose of this circuit is to prevent the engine from stalling while driving in lock±up condition when
brakes are suddenly applied.
When the brake pedal is depressed, this switch sends a signal to the ECM. Then the ECM cancels the opera-
tion of the lock±up clutch while braking is in progress.
DTC No.DTC Detection ConditionTrouble Area
P0724
The stop light switch remains ON even when the vehicle is
driven in a STOP (less than 3 km/h (2 mph)) and GO (30 km/h
(19 mph) or more) fashion 5 times. (2±trip detection logic).
Short in stop light switch signal circuit

Stop light switch

ECM
MONITOR DESCRIPTION
This DTC indicates that the stop light switch remains on. When the stop light switch remains ON during ºstop
and goº driving, the ECM interprets this as a fault in the stop light switch and the MIL comes on and the ECM
stores the DTC. The vehicle must stop (less than 3 km/h (2 mph)) and go (30 km/h (19 mph) or more) ten
times for two driving cycles in order to detect a malfunction.
MONITOR STRATEGY
Related DTCsP0724Stop light switch/Range check/Rationality
Rid /C tMainStop light switchRequired sensors/ComponentsSubVehicle speed sensor
Frequency of operationContinuous
DurationGO and STOP 5 times
MIL operation2 driving cycles
Sequence of operationNone
TYPICAL ENABLING CONDITIONS
ItSpecificationItemMinimumMaximum
The monitor will run whenever this DTC is
not present.See page DI±545
Battery voltage8 V or more±
Ignition switchON
StarterOFF
GO (Vehicle speed is 30 km/h
(18.63 mph) or more)Once
STOP (Vehicle speed is less than 3 km/h
(1.86 mph))Once
TYPICAL MALFUNCTION THRESHOLDS
Detection criteriaThreshold
Brake switchRemain ON during GO and STOP 5 times
DIDJA±01

± DIAGNOSTICSAUTOMATIC TRANSMISSION
DI±603
797 Author: Date:
2005 SEQUOIA (RM1146U)
DTC P0748 Pressure Control Solenoid ºAº Electrical
(Shift Solenoid Valve SL1)
CIRCUIT DESCRIPTION
Shifting from 1st to 5th is performed in combination with ºONº and ºOFFº operation of the shift solenoid valves
SL1, SL2, S1, S2 and SR which are controlled by the ECM. If an open or short circuit occurs in either of the
shift solenoid valves, the ECM controls the remaining normal shift solenoid valves to allow the vehicle to be
operated smoothly (See page DI±567).
DTC No.DTC Detection ConditionTrouble Area
P0748
ECM checks for an open or short circuit in shift solenoid valves
SL1 (1±trip detection logic)
(a) When solenoid, duty ratio equal to 100%
(b) When solenoid is not energized, duty ratio is less than 3%
Open or short in shift solenoid valve SL1 circuit

Shift solenoid valve SL1

ECM
MONITOR DESCRIPTION
This DTC indicates an open or short in the shift solenoid valve SL1 circuit. The ECM commands gearshift
by turning the shift solenoid valves ºON/OFFº. When there is an open or short circuit in any shift solenoid
valve circuit, the ECM detects the problem and illuminates the MIL and stores the DTC. And the ECM per-
forms the fail±safe function and turns the other normal shift solenoid valves ºON/OFFº. (In case of an open
or short circuit, the ECM stops sending current to the circuit.)
While driving and shifting between 4th and 5th gears, if the ECM detects an open or short in the shift solenoid
valve SL1 circuit, the ECM determines there is a malfunction (See page DI±567).
MONITOR STRATEGY
Related DTCsP0748Shift solenoid valve SL1/Range check
Required sensors/ComponentsShift solenoid valve SL1
Frequency of operationContinuous
Duration1 sec.
MIL operationImmediate
Sequence of operationNone
TYPICAL ENABLING CONDITIONS
ItSpecificationItemMinimumMaximum
The monitor will run whenever this DTC is
not present.See page DI±545
Battery voltage10 V or more±
CPU commanded duty±Less than 75%
Ignition switchON
SwitchOFF
TYPICAL MALFUNCTION THRESHOLDS
Detection criteriaThreshold
Output signal duty100%
DIDJB±01

± DIAGNOSTICSAUTOMATIC TRANSMISSION
DI±631
825 Author: Date:
2005 SEQUOIA (RM1146U)
DTC P0778 Pressure Control Solenoid ºBº Electrical
(Shift Solenoid Valve SL2)
CIRCUIT DESCRIPTION
Shifting from 1st to 5th is performed in combination with ºONº and ºOFFº operation of the shift solenoid valves
SL1, SL2, S1, S2 and SR which are controlled by the ECM. If an open or short circuit occurs in either of the
shift solenoid valves, the ECM controls the remaining normal shift solenoid valves to allow the vehicle to be
operated smoothly (See page DI±567).
DTC No.DTC Detection ConditionTrouble Area
P0778
The ECM checks for an open or short in the shift solenoid
valve SL2 circuit while driving and shifting gears. (1±trip detec-
tion logic)

Output signal duty equals to 100%.
(NOTE: SL2 output signal duty is less than 100% under nor-
mal condition.)

Open or short in shift solenoid valve SL2 circuit

Shift solenoid valve SL2

ECM
MONITOR DESCRIPTION
This DTC indicates an open or short in the shift solenoid valve SL2 circuit. The ECM commands gear shift
by turning the shift solenoid valves ºON/OFFº. When there is an open or short circuit in any shift solenoid
valve circuit, the ECM detects the problem and illuminates the MIL and stores the DTC. And the ECM per-
forms the fail±safe function and turns the other normal shift solenoid valves ºON/OFFº. (In case of an open
or short circuit, the ECM stops sending current to the circuit.)
While driving and shifting gears, if the ECM detects an open or short in the shift solenoid valve SL2 circuit,
the ECM determines there is a malfunction (See page DI±567).
MONITOR STRATEGY
Related DTCsP0778Shift solenoid valve SL2/Range check
Required sensors/ComponentsShift solenoid valve SL2
Frequency of operationContinuous
Duration1 sec.
MIL operationImmediate
Sequence of operationNone
TYPICAL ENABLING CONDITIONS
ItSpecificationItemMinimumMaximum
The monitor will run whenever this DTC is
not present.See page DI±545
Battery voltage10 V or more±
CPU commanded duty±Less than 75%
Ignition switchON
StarterOFF
TYPICAL MALFUNCTION THRESHOLDS
Detection criteriaThreshold
Output signal duty100%
DIDJG±01

D14170
E1
Electronically Controlled
Transmission SolenoidECM
9
E7SR
7 SB
G±R
SR+B
CPU
DI±652
± DIAGNOSTICSAUTOMATIC TRANSMISSION
846 Author: Date:
2005 SEQUOIA (RM1146U)
TYPICAL ENABLING CONDITIONS
ItSpecificationItemMinimumMaximum
The monitor will run whenever these
DTCs are not present.See page DI±545
Range check (Low resistance)
Shift solenoid valve SRON
Battery voltage8 V or more±
Ignition switchON
StarterOFF
Range check (High resistance)
Shift solenoid valve SROFF
Battery voltage8 V or more±
Ignition switchON
StarterOFF
TYPICAL MALFUNCTION THRESHOLDS
Detection criteriaThreshold
Range check (Low resistance)
Shift solenoid valve SR resistance8 W or less
Range check (High resistance)
Shift solenoid valve SR resistance100 kW or more
COMPONENT OPERATING RANGE
ParameterStandard value
Shift solenoid valve SRResistance: 11 to 15 at 20°C (68°F)
WIRING DIAGRAM

D11993
(+)
(±)
Shift Solenoid Valve SR:
± DIAGNOSTICSAUTOMATIC TRANSMISSION
DI±655
849 Author: Date:
2005 SEQUOIA (RM1146U)
3 Check shift solenoid valve SR.
PREPARATION:
Remove the shift solenoid valve SR (See page AT±10).
CHECK:
Measure the resistance according to the value(s) in the table
below.
OK:
Tester ConnectionSpecified Condition
20C (68F)
Solenoid Connector (SR) ± Solenoid
Body (SR)11 to 15 W
CHECK:
Connect the battery positive lead to the solenoid connector ter-
minal and the battery negative lead to the solenoid body
ground.
OK:
Solenoid sounds an operation noise.

NG Replace the shift solenoid valve SR
(See page AT±10).
OK
Repair or replace the transmission wire
(See page AT±7).

DI±662
± DIAGNOSTICSAUTOMATIC TRANSMISSION
856 Author: Date:
2005 SEQUOIA (RM1146U)
DTC P2716 Pressure Control Solenoid ºDº Electrical
(Shift Solenoid Valve SLT)
CIRCUIT DESCRIPTION
See page DI±656
DTC No.DTC Detection ConditionTrouble Area
P2716Open or short is detected in shift solenoid valve SLT circuit for
1 second or more while driving (1±trip detection logic).
Open or short in shift solenoid valve SLT circuit

Shift solenoid valve SLT

ECM
MONITOR DESCRIPTION
When an open or short in the linear solenoid valve (SLT) circuit is detected, the ECM interprets this as a fault.
The ECM will turn on the MIL and store the DTC.
MONITOR STRATEGY
Related DTCsP2716Shift solenoid valve SLT/Range check
Required sensors/ComponentsShift solenoid valve SLT
Frequency of operationContinuous
Duration1 sec.
MIL operationImmediate
Sequence of operationNone
TYPICAL ENABLING CONDITIONS
ItSpecificationItemMinimumMaximum
The monitor will run whenever this DTC is
not present.See page DI±545
Solenoid current cut statusNot cut
Battery voltage11 V or more±
CPU command duty ratio to SLT19% or more±
Ignition switchON
StarterOFF
TYPICAL MALFUNCTION THRESHOLDS
Detection criteriaThreshold
Solenoid status from ICFail (Open or short)
COMPONENT OPERATING RANGE
ParameterStandard value
Output signal dutyLess than 100%
DIDJM±01