ECO mode TOYOTA SEQUOIA 2001 Service Repair Manual
[x] Cancel search | Manufacturer: TOYOTA, Model Year: 2001, Model line: SEQUOIA, Model: TOYOTA SEQUOIA 2001Pages: 4323, PDF Size: 48.49 MB
Page 17 of 4323
F09750
DLC3
Ts
CG
± INTRODUCTIONFOR ALL OF VEHICLES
IN±17
17 Author: Date:
2005 SEQUOIA (RM1146U)
(i) AIRBAG SENSOR ASSEMBLY
(1) Never reuse the airbag sensor assembly involved
in a collision when the SRS has deployed.
(2) The connectors to the airbag sensor assembly
should be connected or disconnected with the sen-
sor mounted on the floor. If the connectors are con-
nected or disconnected while the airbag sensor as-
sembly is not mounted to the floor, it could cause
undesired ignition of the supplemental restraint sys-
tem.
(3) 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, even if only loosening the
set bolts of the airbag sensor assembly.
(j) WIRE HARNESS AND CONNECTOR
The SRS wire harness is integrated with the cowl wire har-
ness assembly and floor wire harness assembly. All the
connectors for the system are also a standard yellow col-
or. If the SRS wire harness becomes disconnected or the
connector becomes broken due to an accident, etc., re-
pair or replace it.
2. FOR VEHICLES EQUIPPED WITH VEHICLE SKID
CONTROL (VSC) SYSTEM
NOTICE:
Even if TRAC is initially OFF, it automatically be-
comes ON when the vehicle speed becomes about 30
km/h (19 mh) or more. Therefore, please drive in the
test mode to avoid dangerous situations caused by
the TRAC control.
VSC/ABS may be failed when the vehicle is driven on
the two±wheel chassis dynamo. Therefore, after driv-
ing on the chassis dynamo, please clear DTC before
normal driving. Please refer to the page DI±899 for the
method of clearing DTC.
Fasten the vehicle with the lock chain.
(a) Confirm VSC system is OFF.
(1) Turn the ignition switch OFF.
(2) Using SST, connect terminals Ts and CG of DLC3.
SST 09843±18040
(3) Start the engine.
Page 21 of 4323
IN0KL±01
± INTRODUCTIONFOR ALL OF VEHICLES
IN±21
21 Author: Date:
2005 SEQUOIA (RM1146U)
CUSTOMIZE PARAMETERS
HINT:
The following items can be customized.
NOTICE:
When a customer requests a change in a function, first make sure that customization of the
function(s) is/are possible.
Be sure to make a note of the current setting before customizing.
When troubleshooting a function, first make sure that the function is not set to OFF.
When troubleshooting, pay attention as there is a possibility that the function has been set to
SMALL through customizing (Example: In case of the symptom in which ºThe key reminder
buzzer operation does not functionº is displayed, check that the key reminder buzzer operation
is not set to SMALL, then perform troubleshooting).
METER:
DISPLAY (ITEM)DEFAULTCONTENTSSETTING
KEY REMND VOLUM
(Key reminder buzzer vol-
ume)
LARGEFunction that changes the volume of key reminder buzzer.LARGE/MEDIUM/SMALL
WIRELESS DOOR LOCK:
DISPLAY (ITEM)DEFAULTCONTENTSSETTING
WIRELESS OPERONTurns wireless door lock function ON/OFF.ON/OFF
OPEN DOOR WARNONSounds buzzer for 10 seconds when door is not completely
closed and transmitter LOCK switch is pressed.ON/OFF
AUTO LOCK DELAY30SControls amount of time from when doors are unlocked until
they are locked by automatic lock function.60S/30S
UNLOCK/2OPERON
When UNLOCK switch is pressed once, this function un±
locks only the designated door. When unlock switch is
pressed again within 3 seconds, all doors unlock. If setting is
OFF, pressing UNLOCK switch once unlocks all doors.
ON/OFF
LNT/LGT ON/UNLKONTurns on room light when wireless door lock system is oper-
ated.ON/OFF
ALARM FUNCTIONONOperates theft deterrent system when transmitter LOCK
(PANIC) switch is held for 3 seconds.ON/OFF
AUTO LOCKOFFLocks doors when the vehicle speed reaches a certain level.ON/OFF
UNLK/KEY TWICEON
Unlocks only driver's door when driver's door key cylinder is
turned to unlock once, and unlocks all doors when it is turned
to unlock twice. In OFF setting, unlocks all doors when the
cylinder is turned to unlock once.
ON/OFF
ALL UNLK/OPN±CLOFFFunction that unlocks all doors when the driver door is
opened after turning the ignition switch off.ON/OFF
UNLOCK/PARKOFFUnlocks doors when shift lever is moved to P position from
any position other than P while the ignition switch is ON.ON/OFF
THEFT:
DISPLAY (ITEM)DEFAULTCONTENTSSETTING
WARNING TIME15SChanges warning time for PASSIVE MODE.5S/15S/27.5S/60S
PASSIVE MODEOFF
Switches theft deterrent system from arming preparation
state to armed state 30 seconds after key is removed from
ignition key cylinder and driver side door is closed, even if
doors are not locked by wireless or door key lock operation.
ON/OFF
WARN BY GLS SENONFunction that switches the alarm warning on/off when glass
breakage is detected.ON/OFF
Page 25 of 4323
Important Points in the Customer Problem Analysis
What ±±±±± Vehicle model, system name
When ±±±±± Date, time, occurrence frequency
Where ±±±±± Road conditions
Under what conditions? ±±±±± Running conditions, driving conditions, weather conditions
How did it happen? ±±±±± Problem symptoms
(Sample) Engine control system check sheet.
ENGINE CONTROL SYSTEM Check Sheet
Customer's Name
Driver's Name
Data Vehicle
Brought in
License No.
Model and Model
Year
Frame No.
Engine Model
Odometer Reading
km
miles
Problem Symptoms
Engine does
not Start
Difficult to
Start
Poor Idling
Poor
Drive ability
Engine Stall
Others
Engine does not crankNo initial combustionNo complete combustion
Engine cranks slowly
Other
Incorrect first idleIdling rpm is abnormalHigh ( rpm)Low ( rpm)
Rough idling
Other
HesitationBack fireMuffler explosion (after±fire)Surging
Knocking
Other
Soon after startingAfter accelerator pedal depressed
After accelerator pedal released
During A/C operation
Shifting from N to D
Other
Data Problem
ConstantSometimes ( times per day/month)
Inspector's
Name
CUSTOMER PROBLEM ANALYSIS CHECK
± INTRODUCTIONHOW TO TROUBLESHOOT ECU CONTROLLED
SYSTEMSIN±25
25 Author: Date:
2005 SEQUOIA (RM1146U)
1. CUSTOMER PROBLEM ANALYSIS
In troubleshooting, the problem symptoms must be confirmed accurately and all preconceptions must be
cleared away in order to give an accurate judgment. To ascertain just what the problem symptoms are, it is
extremely important to ask the customer about the problem and the conditions at the time it occurred.
Important Point in the Problem Analysis:
The following 5 items are important points in the problem analysis. Past problems which are thought to be
unrelated and the repair history, etc. may also help in some cases, so as much information as possible should
be gathered and its relationship with the problem symptoms should be correctly ascertained for reference
in troubleshooting. A customer problem analysis table is provided in Diagnostics section for each system
for your use.
Page 45 of 4323
IN01X±04
± INTRODUCTIONTERMS
IN±45
45 Author: Date:
2005 SEQUOIA (RM1146U)
GLOSSARY OF SAE AND TOYOTA TERMS
This glossary lists all SAE±J1930 terms and abbreviations used in this manual in compliance with SAE rec-
ommendations, as well as their Toyota equivalents.
SAE
ABBREVIATIONSSAE TERMSTOYOTA TERMS
( )±±ABBREVIATIONS
A/CAir ConditioningAir Conditioner
ACLAir CleanerAir Cleaner, A/CL
AIRSecondary Air InjectionAir Injection (AI)
APAccelerator Pedal±
B+Battery Positive Voltage+B, Battery Voltage
BAROBarometric PressureHAC
CACCharge Air CoolerIntercooler
CARBCarburetorCarburetor
CFIContinuous Fuel Injection±
CKPCrankshaft PositionCrank Angle
CLClosed LoopClosed Loop
CMPCamshaft PositionCam Angle
CPPClutch Pedal Position±
CTOXContinuous Trap Oxidizer±
CTPClosed Throttle PositionLL ON, Idle ON
DFIDirect Fuel InjectionDirect Injection (DI/INJ)
DIDistributor Ignition±
DLC3Data Link Connector 3OBD II Diagnostic Connector
DTCDiagnostic Trouble CodeDiagnostic Trouble Code
DTMDiagnostic Test Mode±
ECLEngine Coolant Level±
ECMEngine Control ModuleEngine ECU (Electronic Control Unit)
ECTEngine Coolant TemperatureCoolant Temperature, Water Temperature (THW)
EEPROMElectrically Erasable Programmable Read Only Memory
Electrically Erasable Programmable Read Only Memory
(EEPROM),
Erasable Programmable Read Only Memory (EPROM)
EFEEarly Fuel EvaporationCold Mixture Heater (CMH), Heat Control Valve (HCV)
EGRExhaust Gas RecirculationExhaust Gas Recirculation (EGR)
EIElectronic IgnitionDistributorless Ignition (DLI)
EMEngine ModificationEngine Modification (EM)
EPROMErasable Programmable Read Only MemoryProgrammable Read Only Memory (PROM)
EVAPEvaporative EmissionEvaporative Emission Control (EVAP)
FCFan Control±
FEEPROMFlash Electrically Erasable Programmable
Read Only Memory±
FEPROMFlash Erasable Programmable Read Only Memory±
FFFlexible Fuel±
FPFuel PumpFuel Pump
GENGeneratorAlternator
GNDGroundGround (GND)
HO2SHeated Oxygen SensorHeated Oxygen Sensor (HO2S)
Page 203 of 4323
DI3H8±10
Vehicle Brought to Workshop
Customer Problem Analysis P. DI±10
Problem Symptom Confirmation
If the engine does not start perform steps 10 and 12 firstConnect the OBD II scan tool or hand±held tester to DLC3.
If the display indicates a communication fault in the tool, inspect DLC3 P.DI±40
Check DTC and Freeze Frame Data
Record or Print DTC and Freeze Frame Data P. DI±43
Clear DTC and Freeze Frame Data P. DI±43
Visual Inspection
Setting the Check Mode Diagnosis P. DI±44
Symptom Simulation P. IN±24
Basic Inspection P. DI±12DTC Chart P. DI±58
Problem Symptoms Table P. DI±33
Circuit Inspection P. DI±73
Adjustment, Repair
DTC Check P. DI±43
Items insideare titles of pages in
in the bottom portion. See the indicated
pages for detailed explanations. this manual, with the page number
Malfunction
occurs.Malfunction does not occur.
Parts Inspection
Check for Intermittent Problems P. DI±11
Identification of Problem
Confirmation Test
End 1
2
3
4
5
6
7
108
9
11
12
13
15 14
16
Normal Malfunction code.
17The hand±held tester can be used at
bold frame.
± DIAGNOSTICSENGINE
DI±9
203 Author: Date:
2005 SEQUOIA (RM1146U)
HOW TO PROCEED WITH TROUBLESHOOTING
Troubleshoot in accordance with the procedure on the following page.
Page 204 of 4323
DI3H9±07
ENGINE CONTROL SYSTEM Check Sheet
Customer's Name
Driver's Name
Data Vehicle
Brought in
Engine model
VIN
Production Date
Licence Plate No.
Odometer Reading
Problem Symptoms
Engine does
not Start
Difficult to
Start
Poor Idling
Poor
Driveability
Engine Stall
Others
Engine does not crankNo initial combustionNo complete combustion
Engine cranks slowly
Other
Incorrect first idleIdling rpm is abnormalHigh ( rpm)Low ( rpm)
Rough idling
Other
HesitationBack fireMuffler explosion (after±fire)Surging
Knocking
Other
Soon after startingAfter accelerator pedal depressed
After accelerator pedal released
During A/C operation
Shifting from N to D
Other
Dates Problem
Occurred
Problem Frequency
Condition When
Problem Occurs
Weather
Engine Operation
Engine Temp. Place Outdoor
TemperatureConstant
Sometimes ( times per day/month)Once only
Other
Fine
CloudyRainySnowyVarious/Other
Hot
Warm CoolCold (approx. °C/ °F)
Highway
SuburbsInner cityUphillDownhill
Rough road
Other
Cold
Warming upAfter warming upAny temp.Other
Starting
Just after starting ( min.)IdlingRacing
Driving
Constant speedAccelerationDeceleration
A/C switch ON/OFF
Other
Condition of malfunction indicator lightRemains on Sometimes lights up Does not light up
NormalMalfunction code(s) (code )
Freeze frame data ( )
NormalMalfunction code(s) (code )
Freeze frame data ( )
Normal Mode
(Pre±check)
Check Mode DTC InspectionInspector's
Name
km
miles
(MIL)
DI±10
± DIAGNOSTICSENGINE
204 Author: Date:
2005 SEQUOIA (RM1146U)
CUSTOMER PROBLEM ANALYSIS CHECK
Page 234 of 4323
DID7X±01
FI0534
D13872
Hand±Held Tester
DLC3
DI±40
± DIAGNOSTICSENGINE
234 Author: Date:
2005 SEQUOIA (RM1146U)
DIAGNOSIS SYSTEM
1. Description
When troubleshooting On±Board Diagnostic (OBD ll) ve-
hicles, the vehicle must be connected to the hand±held
tester. Various data output from the vehicle's ECM can
then be read.
OBD ll regulations require that the vehicle's on±board
computer illuminates the Malfunction Indicator Light (MIL)
on the instrument panel when the computer detects a
malfunction in: 1) the emission control system/compo-
nents, or 2) the powertrain control components (which af-
fect vehicle emissions), or 3) the computer. In addition,
the applicable Diagnostic Trouble Codes (DTCs) pre-
scribed by SAE J2012 are recorded in the ECM memory
(See page DI±58).
If the malfunction does not reoccur in 3 consecutive trips, the
MIL goes off automatically but the DTCs remain recorded in the
ECM memory.
To check the DTC, connect the hand±held tester or OBD II scan
tool to the Data Link Connector 3 (DLC3) of the vehicle. The
hand±held tester or OBD II scan tool also enables you to erase
the DTC and check the freeze frame data and various forms of
engine data (See the instruction manual for the hand±held tes-
ter). The DTC includes SAE controlled codes and manufacturer
controlled codes. SAE controlled codes must be set according
to the SAE, while manufacturer controlled codes can be set by
a manufacturer with certain restrictions (See the DTC chart on
page DI±58).
2. NORMAL MODE AND CHECK MODE
The diagnosis system operates in ºnormal modeº during normal
vehicle use. In ºnormal modeº, 2 trip detection logic* is used to
ensure accurate detection of malfunctions. A ºcheck modeº is
also available to technicians as an option. In ºcheck modeº, 1
trip detection logic is used for simulating malfunction symptoms
and increasing the system's ability to detect malfunctions, in-
cluding intermittent malfunctions (See page DI±11).
3. 2±TRIP DETECTION LOGIC
When a malfunction is first detected, the malfunction is tempo-
rarily stored in the ECM memory. This is known as 1st trip detec-
tion. If the ignition switch is turned OFF and then ON again, and
the same malfunction is detected again, the MIL will illuminate.
This is known as 2nd trip detection.
Page 237 of 4323
DID7Y±01
D13872
Hand±Held Tester
DLC3CAN VIM
± DIAGNOSTICSENGINE
DI±43
237 Author: Date:
2005 SEQUOIA (RM1146U)
DTC CHECK / CLEAR
1. CHECK DTC
DTCs which are stored in the ECM can be displayed with the
hand±held tester or generic OBD II scan tool.
These scan tools can display pending DTCs and current DTCs.
Some DTCs are not stored if the ECM does not detect a mal-
function during consecutive driving. However, the detected
malfunction during once driving is stored as pending DTC.
(a) Connect the hand±held tester to the CAN VIM. Then con-
nect the CAN VIM to the Data Link Connector 3 (DLC3).
(b) Turn the ignition switch to ON.
(c) Enter the following menus: DIAGNOSIS / ENHANCED
OBD II / DTC INFO / CURRENT CODES (or PENDING
CODE).
(d) Confirm the DTCs and freeze frame data and then write
them down.
(e) See page DI±58 to confirm the details of the DTCs.
NOTICE:
When simulating a symptom with the hand±held tester to
check the DTCs, use the normal mode. For DTC chart sub-
ject to º2 trip detection logicº, perform either of the follow-
ing actions.
Turn the ignition switch OFF after the symptom is simulated
once. Then repeat the simulation process again. When the
problem has been simulated twice, the MIL illuminates and the
DTCs are recorded in the ECM.
2. CLEAR DTC
(a) Connect the hand±held tester to the CAN VIM. Then con-
nect the CAN VIM to the DLC3.
(b) Turn the ignition switch to ON.
(c) Enter the following menus: DIAGNOSIS / ENHANCED
OBD II / DTC INFO / CLEAR CODES and press YES.
Page 238 of 4323
DID7Z±01
D13872
Hand±Held Tester
DLC3CAN VIM
BR3904
0.13 sec.0.13 sec.
ON
OFF DI±44
± DIAGNOSTICSENGINE
238 Author: Date:
2005 SEQUOIA (RM1146U)
CHECK MODE PROCEDURE
HINT:
Hand±held tester only:
Check mode has a higher sensitivity to detect malfunctions and
can detect malfunctions that normal mode cannot detect.
Check mode can also detect all the malfunctions that normal
mode can detect.
1. CHECK MODE PROCEDURE
(a) Make sure that the items below are true.
(1) Battery positive voltage 11 V or more
(2) Throttle valve fully closed
(3) Transmission in the P or N position
(4) A/C switched OFF
(b) Turn the ignition switch OFF.
(c) Connect the hand±held tester to the DLC3.
(d) Turn the ignition switch ON.
(e) Change the ECM to check mode with the hand±held tes-
ter. Enter the following menus: DIAGNOSIS / EN-
HANCED OBD II / CHECK MODE. Make sure the MIL
flashes as shown in the illustration.
NOTICE:
All DTCs and freeze frame data recorded will be erased if:
1) the hand±held tester is used to change the ECM from
normal mode to check mode or vice±versa; or 2) during
check mode, the ignition switch is turned from ON to ACC
or OFF.
(f) Start the engine. The MIL should turn off after the engine
starts.
(g) Simulate the conditions of the malfunction described by
the customer.
(h) After simulating the malfunction conditions, use the
hand±held tester diagnosis selector to check the DTC,
freeze frame data and other data.
(i) After checking the DTC, inspect the applicable circuit.
2. CLEAR DTC (Using the hand±held tester)
(a) Connect the OBD ll scan tool or the hand±held tester to
the DLC3.
(b) Turn the ignition switch ON.
(c) Erase DTCs and freeze frame data with the OBD II scan
tool (complying with SAE J1978) or the hand±held tester.
For the hand±held tester: 1) enter the following menus:
DIAGNOSIS / ENHANCED OBD II / DTC INFO / CLEAR
CODES; and 2) press YES. For the OBD II scan tool, see
its instruction manual.
Page 240 of 4323
DID80±01
DI±46
± DIAGNOSTICSENGINE
240 Author: Date:
2005 SEQUOIA (RM1146U)
FAIL±SAFE CHART
If any of the following code is recorded, the ECM enters fail±safe mode.
DTC No.Fail±Safe OperationFail±Safe Deactivation Conditions
P0031
P0032
P0037
P0038
P0051
P0052
P0057
P0058
The heater circuit in which an abnormality is detected is
turned offIgnition switch OFF
P0100
P0102
P0103Ignition timing is calculated from engine speed and throttle
angleºPassº condition detected
P0110
P0112
P0113
Intake air temperature is fixed at 20°C (68°F)ºPassº condition detected
P0115
P0117
P0118
Engine coolant temperature is fixed at 80°C (176°F)ºPassº condition detected
P0120
P0121
P0122
P0123
P0220
P0222
P0223
P0607
P0657
P2102
P2103
P2111
P2112
P2118
P2119
P2135
If the Electronic Throttle Control System (ETCS) has a mal-
function, the ECM cuts off current to the throttle control
motor. The throttle control valve returns to a predetermined
opening angle (approximately 16) by the force of the return
spring. The ECM then adjusts the engine output by control-
ling the fuel injection (intermittent fuel±cut) and ignition tim-
ing in accordance with the accelerator pedal opening angle
to enable the vehicle to continue at a minimal speed.
If the accelerator pedal is depressed firmly and slowly, the
vehicle can be driven slowly. If the accelerator pedal is
depressed quickly, the vehicle may speed up and slow
down erratically.
ºPassº condition is detected and then the ignition switch is
turned OFF.
P0325
P0330Max. timing retardationIgnition switch OFF
P0351
P0352
P0353
P0354
P0355
P0356
P0357
P0358
Fuel cutºPassº condition detected