2001 TOYOTA SEQUOIA Service Repair Manual

interior lights fuel tank removal wheel torque steering gas type coolant reservoir

Page 809 of 4323

TOYOTA SEQUOIA 2001 Service Repair Manual D12795
12
(±)(+)
12
Shift Solenoid Valve SL1:
± DIAGNOSTICSAUTOMATIC TRANSMISSION
DI±607
801 Author: Date:
2005 SEQUOIA (RM1146U)
3 Inspect shift solenoid valve SL1.
PREPARATION:
Remove the shi

Page 810 of 4323

TOYOTA SEQUOIA 2001 Service Repair Manual DI±608
± DIAGNOSTICSAUTOMATIC TRANSMISSION
802 Author: Date:
2005 SEQUOIA (RM1146U)
DTC P0751 Shift Solenoid ºAº Performance
(Shift Solenoid Valve S1)
SYSTEM DESCRIPTION
The ECM uses signals

DI±608
± DIAGNOSTICSAUTOMATIC TRANSMISSION
802 Author: Date:
2005 SEQUOIA (RM1146U)
DTC P0751 Shift Solenoid ºAº Performance
(Shift Solenoid Valve S1)
SYSTEM DESCRIPTION
The ECM uses signals from the output shaft speed sensor and input speed sensor to detect the actual gear
position (1st, 2nd, 3rd, 4th or 5th gear).
Then the ECM compares the actual gear with the shift schedule in the ECM memory to detect mechanical
problems of the shift solenoid valves, valve body or automatic transmission (clutch, brake or gear, etc.).
DTC No.DTC Detection ConditionTrouble Area
P0751The gear required by the ECM does not match the actual gear
when driving (2±trip detection logic)Shift solenoid valve S1 remains open or closed
Valve body is blocked
Automatic transmission (clutch, brake or gear, etc.)
MONITOR DESCRIPTION
This DTC indicates ºstuck ON malfunctionº or ºstuck OFF malfunctionº of the shift solenoid valve S1.
The ECM commands gear shifts by turning the shift solenoid valves ºON/OFFº. When the gear position com-
manded by the ECM and the actual gear position are not the same, the ECM illuminates the MIL and stores
the DTC.
MONITOR STRATEGY
RltdDTCP0751Shift solenoid valve S1/OFF malfunctionRelated DTCsP0751Shift solenoid valve S1/ON malfunction
MainShift solenoid valve S1
Required sensors/ComponentsSubVehicle speed sensor, Throttle position sensor, Speed sensor (NT), Speed
sensor (NO)
Frequency of operationContinuous
OFF malfunction (A) and (B)0.4 sec.
OFF malfunction (C)Immediate
DurationON malfunction (A), (B) and
(C)0.4 sec.
ON malfunction (D)3 sec.
ON malfunction (E)0.5 sec.
MIL operation2 driving cycles
Sequence of operationNone
TYPICAL ENABLING CONDITIONS
ItSpecificationItemMinimumMaximum
All:
Turbine speed sensor circuitNot circuit malfunction
Output speed sensor circuitNot circuit malfunction
Shift solenoid valve S1 circuitNot circuit malfunction
Shift solenoid valve S2 circuitNot circuit malfunction
Shift solenoid valve SR circuitNot circuit malfunction
Shift solenoid valve SL1 circuitNot circuit malfunction
DIDJC±01

Page 811 of 4323

TOYOTA SEQUOIA 2001 Service Repair Manual ± DIAGNOSTICSAUTOMATIC TRANSMISSION
DI±609
803 Author: Date:
2005 SEQUOIA (RM1146U) Shift solenoid valve SL2 circuit
Not circuit malfunction
ECT (Engine coolant temperature) sensor
circuitNot ci

Page 812 of 4323

TOYOTA SEQUOIA 2001 Service Repair Manual DI±610
± DIAGNOSTICSAUTOMATIC TRANSMISSION
804 Author: Date:
2005 SEQUOIA (RM1146U) Throttle valve opening angle
7.0% or more at 2,000 rpm
(Conditions vary with engine speed)±
ON malfunction (D

Page 813 of 4323

TOYOTA SEQUOIA 2001 Service Repair Manual ECM command gearshift
Shift solenoid valve S11st 2nd 3rd 4th 5th
OFF ON
ON OFF OFF
± DIAGNOSTICSAUTOMATIC TRANSMISSION
DI±611
805 Author: Date:
2005 SEQUOIA (RM1146U)
INSPECTION PROCEDURE
HINT:

Page 814 of 4323

TOYOTA SEQUOIA 2001 Service Repair Manual DI±612
± DIAGNOSTICSAUTOMATIC TRANSMISSION
806 Author: Date:
2005 SEQUOIA (RM1146U)
1 Check other DTCs output (in addition to DTC P0751).
PREPARATION:
(a) Turn the ignition switch off.
(b) Conne

Page 815 of 4323

TOYOTA SEQUOIA 2001 Service Repair Manual D11991
Shift solenoid S1:
(+) (±)
± DIAGNOSTICSAUTOMATIC TRANSMISSION
DI±613
807 Author: Date:
2005 SEQUOIA (RM1146U)
2 Check shift solenoid valve S1 operation.
PREPARATION:
Remove the shift so

Page 816 of 4323

TOYOTA SEQUOIA 2001 Service Repair Manual DI±614
± DIAGNOSTICSAUTOMATIC TRANSMISSION
808 Author: Date:
2005 SEQUOIA (RM1146U)
DTC P0756 Shift Solenoid ºBº Performance
(Shift Solenoid Valve S2)
SYSTEM DESCRIPTION
The ECM uses signals

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