2001 TOYOTA SEQUOIA clock

IN0IG±04
BO4111
Negative Cable
± INTRODUCTIONFOR ALL OF VEHICLES
IN±9
9 Author: Date:
2005 SEQUOIA (RM1146U)
FOR ALL OF VEHICLES
PRECAUTION
1. FOR VEHICLES EQUIPPED WITH SRS AIRBAG AND
SEAT BELT PRETENSIONER
(a) The SEQUOIA is equipped with an SRS (Supplemental
Restraint System), such as the driver airbag, front pas-
senger airbag, side airbag assembly, curtain shield airbag
assembly and seat belt pretensioner.
Failure to carry out service operations in the correct se-
quence could cause the supplemental restraint system to
unexpectedly deploy during servicing, possibly leading to
a serious accident.
Further, if a mistake is made in servicing the supplemental
restraint system, it is possible the SRS may fail to operate
when required. Before servicing (including removal or
installation of parts, inspection or replacement), be sure
to read the following items carefully, then follow the cor-
rect procedure described in this manual.
(b) GENERAL NOTICE
(1) Malfunction symptoms of the supplemental re-
straint system are difficult to confirm, so the diag-
nostic trouble codes become the most important
source of information when troubleshooting. When
troubleshooting the supplemental restraint system,
always inspect the diagnostic trouble codes before
disconnecting the battery (See page DI±1118).
(2) Work must be started after 90 seconds from the
time the ignition switch is turned to the ºLOCKº posi-
tion and the negative (±) terminal cable is discon-
nected from the battery.
(The supplemental restraint system is equipped
with a back±up power source because if work is
started within 90 seconds of disconnecting the neg-
ative (±) terminal cable from the battery, the SRS
may deploy.)
When the negative (±) terminal cable is discon-
nected from the battery, memory of the clock and
audio systems will be cancelled. So before starting
work, make a record of the contents memorized in
each memory system. When work is finished, reset
the clock and audio systems as before. To avoid
erasing the memory of each memory system, never
use a back±up power supply from another battery.

IN±22
± INTRODUCTIONFOR ALL OF VEHICLES
22 Author: Date:
2005 SEQUOIA (RM1146U)
DOOR LOCK:
DISPLAY (ITEM)DEFAULTCONTENTSSETTING
AUTO LOCK/SHIFTONLocks doors when shift lever is moved from P to another
position.ON/OFF
ILLUMINATED ENTRY:
DISPLAY (ITEM)DEFAULTCONTENTSSETTING
I/L ON/UNLOCKONIlluminates interior light when ignition switch is turned from
ACC to LOCK position.ON/OFF
LIGHTING TIME15SChanges lighting time after closing doors (light quickly fades
out when ignition switch is turned on).15S/7.5S/30S
LIGHT CONTROL:
DISPLAY (ITEM)DEFAULTCONTENTSSETTING
SENSITIVITYNORMALSensitivity adjustment is difficult to confirm. Check by driving
the customer's vehicle.NORMAL/DARK2/DARK1/
LIGHT1/LIGHT2
LIGHT OFF DELAY30S
Keeps headlights on for a certain period of time after closing
all doors with ignition switch on, light control switch in HEAD
or AUTO position, and headlights on.
OFF/30S/60S/90S
DISP EX ON SENNORMALChanges brightness of lights such as combination meter
indicator light, A/C indicator lamp, and clock lamp.NORMAL/DARK2/DARK1/
LIGHT1/LIGHT2
DISP OFF SENNORMALChanges brightness of lights such as combination meter
indicator light, A/C indicator lamp, and clock lamp.NORMAL/DARK2/DARK1/
LIGHT1/LIGHT2

A23667
Soak Timer Circuit
Ignition Switch
IGSW
Power
ECM
EFI MAIN
MREL+B
15 ASource IC
Soak Timer ICMain Relay
Control IC
Battery DI±442
± DIAGNOSTICSENGINE
636 Author: Date:
2005 SEQUOIA (RM1146U)
DTC P2610 ECM/PCM Internal Engine OFF Timer Perfor-
mance
DTC SUMMARY
DTCMonitoring ItemsMalfunction Detection ConditionsTrouble AreasDetection
TimingsDetection
Logic
P2610Soak timer (built into ECM)ECM internal malfunctionECMEngine
running2 trip
CIRCUIT DESCRIPTION
To ensure the accuracy of the EVAP (Evaporative Emission) monitor values, the soak timer, which is built
into the ECM, measures 5 hours (
15 minutes) from when the ignition switch is turned OFF, before the moni-
tor is run. This allows the fuel to cool down, which stabilizes the Fuel Tank Pressure (FTP). When 5 hours
have elapsed, the ECM turns on.
MONITOR DESCRIPTION
5 hours after the ignition switch is turned OFF, the soak timer activates the ECM to begin the EVAP system
monitor. While the engine is running, the ECM monitors the synchronization of the soak timer and the CPU
clock. If these two are not synchronized, the ECM interprets this as a malfunction, illuminates the MIL and
sets the DTC (2 trip detection logic).
MONITOR STRATEGY
Related DTCsP2610Soak timer (built into ECM)
Required sensors/componentsECM
Frequency of operationOnce per driving cycle
Duration10 min.
MIL operation2 driving cycles
Sequence of operationNone
DIDFX±01

± DIAGNOSTICSENGINE
DI±443
637 Author: Date:
2005 SEQUOIA (RM1146U)
TYPICAL ENABLING CONDITIONS
ItSpecificationItemMinimumMaximum
The monitor will run whenever these
DTCs are not presentSee page DI±18
Battery voltage8 V±
Ignition switchON
StarterOFF
EngineRunning
TYPICAL MALFUNCTION THRESHOLDS
Detection CriteriaThreshold
Soak time measurement when ECM CPU clock counts 10
min.Less than 7 min., or more than 13 min.
INSPECTION PROCEDURE
HINT:

DTC P2610 is set if an internal ECM problem is detected. Diagnostic procedures are not required. ECM
replacement is required.

Read freeze frame data using a hand±held tester. Freeze frame data record the engine condition when
malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle
was moving or stationary, if the engine was warmed up or not, if the air±fuel ratio was lean or rich, and
other data, from the time the malfunction occurred.
1 Replace ECM (See page SF±80).
NEXT
Check whether DTC output recurs.
(a) Connect a hand±held tester to the DLC3.
(b) Turn the ignition switch to ON.
(c) Clear DTCs (see page DI±43).
(d) Start the engine and wait for 10 minutes or more.
(e) On the tester, select the following menu items: DIAGNOSIS / ENHANCED OBD II / DTC INFO / PEND-
ING CODES.
(f) If no pending DTC is displayed, the repair has been successfully completed.

I28701
Wire Harness Side:
Lumbar Support Control Switch
L4
I28702
Lumbar Support Control Motor
Clockwise
Counter-
clockwise
Driving AxisL3
± DIAGNOSTICSPOWER SEAT CONTROL SYSTEM (w/ Driving Position
Memory)DI±1523
1717 Author: Date:
2005 SEQUOIA (RM1146U)
3 Check harness and connector (Power source).
CHECK:
Measure the voltage of each terminal of the wire harness side
connectors.
OK:
Tester ConnectionConditionSpecified Condition
L4±3 ± Body groundAlways10 to 14 V
CHECK:
Measure the resistance of each terminal, as shown in the il-
lustration and table.
OK:
Tester ConnectionConditionSpecified Condition
L4±2 ± Body groundAlwaysBelow 1 W
L4±5 ± Body groundAlwaysBelow 1 W
NG Repair or replace harness or connector.
OK
4 Inspect lumbar support control motor.
PREPARATION:
Remove the lumbar support control motor (See page BO±112).
CHECK:
Check that the motor rotates smoothly when the battery is con-
nected to the lumbar support control motor connector terminals.
OK:
Measurement ConditionOperational Direction
Battery positive (+) "1
Battery negative (±) " 2Clockwise
Battery positive (+) " 2
Battery negative (±) " 1Counterclockwise
NG Replace lumbar support control motor
(See page BO±112).
OK

I07253
1 21 2
DI±1526± DIAGNOSTICSPOWER SEAT CONTROL SYSTEM (w/ Driving Position
Memory)
1720 Author: Date:
2005 SEQUOIA (RM1146U)
INSPECTION PROCEDURE
1 Inspect power seat motor assy.
PREPARATION:
Remove the power seat motor (See page BO±112).
CHECK:
Check that the motor rotates smoothly when the battery is con-
nected to the connector terminal.
OK:
Tester ConnectionSpecified Condition
Battery positive voltage ± 1
Battery negative voltage ± 2Counterclockwise
Battery positive voltage ± 2
Battery negative voltage ± 1Clockwise
NG Replace power seat motor (See page BO±112).
OK

± DIAGNOSTICSCOMBINATION METER SYSTEM
DI±1645
1839 Author: Date:
2005 SEQUOIA (RM1146U)
Operating light control rheostat does not change light brightness
CIRCUIT DESCRIPTION
Illumination intensity of the meter is increased by turning the knob of the light control rheostat switch clock-
wise, and it is decreased by turning the knob counterclockwise.
DID93±01

I28576
270°
Bright
0°
DarkR6
TR ILL±
± DIAGNOSTICSCOMBINATION METER SYSTEM
DI±1649
1843 Author: Date:
2005 SEQUOIA (RM1146U)
5 Inspect light control rheostat switch.
PREPARATION:
(a) Reconnect the light control rheostat switch connector.
(b) Turn the ignition switch ON.
(c) Turn the light control switch to the TAIL or HEAD position.
CHECK:
Measure the voltage according to the value(s) in the table be-
low.
OK:
Tester connection
(Symbol)ConditionSpecified condition
R6±3 (TR) ± Body ground
Rheostat knob turned fully
counterclockwise "
fully clockwise
Below 1 V " 10 to 14 V
R6±6 (ILL±) ± Body
groundRheostat knob turned fully
counterclockwise "
fully clockwise
Below 1 V " 10 to 14 V
NG Replace light control rheostat switch.
OK
Replace combination meter
(See page IN±35).