2001 TOYOTA HIGHLANDER Service Repair Manual

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Page 1385 of 2572

TOYOTA HIGHLANDER 2001 Service Repair Manual I38595
05-1774
- DIAGNOSTICSNAVIGATION SYSTEM
1964 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
(e) Memory Copy/Paste Screen
HINT:
This function cannot be used.

Page 1386 of 2572

TOYOTA HIGHLANDER 2001 Service Repair Manual 05ISA-02
I40190
I38204
I38205
05-1784
- DIAGNOSTICSNAVIGATION SYSTEM
1974 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
DIAGNOSTIC START-UP/FINISH
HINT:
Illustrations may differ from the

Page 1387 of 2572

TOYOTA HIGHLANDER 2001 Service Repair Manual - DIAGNOSTICSNAVIGATION SYSTEM
05-1785
1975 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
5. There are 2 methods to exit. Use one of them.
(a) Turn the ignition switch off.
(b) Press the �

Page 1388 of 2572

TOYOTA HIGHLANDER 2001 Service Repair Manual 05ESO-05
FI0534
A80020
Hand-held Tester
DLC3
- DIAGNOSTICSSFI SYSTEM (2AZ-FE)
05-35
225 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
DIAGNOSIS SYSTEM
1. DESCRIPTION
When troubleshooting

05ESO-05
FI0534
A80020
Hand-held Tester
DLC3
- DIAGNOSTICSSFI SYSTEM (2AZ-FE)
05-35
225 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
DIAGNOSIS SYSTEM
1. DESCRIPTION
When troubleshooting On-Board Diagnostic (OBD II) ve-
hicles, the vehicle must be connected to the OBD II scan
tool (in compliance with SAE J1978) or the hand-held
tester. Various data output from the vehicle's ECM can
then be read.
OBD II regulations require that the vehicle's on-board
computer illuminates the Malfunction Indicator Lamp
(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 05-48).
If the malfunction does not reoccur in 3 consecutive trips, the
MIL turns off automatically but the DTCs remain recorded in the
ECM memory.
To check DTCs, connect the hand-held tester or OBD II
scan tool to the Data Link Connector 3 (DLC3) of the ve-
hicle. The hand-held tester or OBD II scan tool also en-
ables you to erase the DTC and check the freeze frame
data and various forms of engine data (see the instruction
manual for the OBD II scan tool or the hand-held tester).
The DTC includes SAE controlled codes and manufactur-
er controlled codes. SAE controlled codes must be set ac-
cording to the SAE, while manufacturer controlled codes
can be set by a manufacturer with certain restrictions (see
the DTC chart on page 05-48).
The diagnosis system operates in ºnormal modeº during
normal vehicle use. In ºnormal modeº, 2 trip detection log-
ic* is used to ensure accurate detection of malfunctions.
A ºcheck modeº is also available to technicians as an op-
tion. In ºcheck modeº, 1 trip detection logic is used for sim-
ulating malfunction symptoms and increasing the sys-
tem's ability to detect malfunctions, including intermittent
malfunctions (hand-held tester only) (see page 05-40).

Page 1389 of 2572

TOYOTA HIGHLANDER 2001 Service Repair Manual 3 2 1 45678
9 1 0 111 21 31 41 51 6
DLC3
A04550
SG CG SIL
BAT
05-36
- DIAGNOSTICSSFI SYSTEM (2AZ-FE)
226 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
*2 trip detection logic:
When a malf

Page 1390 of 2572

TOYOTA HIGHLANDER 2001 Service Repair Manual - DIAGNOSTICSSFI SYSTEM (2AZ-FE)
05-37
227 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
HINT:
Connect the cable of the OBD II scan tool or the hand-held tes-
ter to the DLC3, turn the ign

Page 1391 of 2572

TOYOTA HIGHLANDER 2001 Service Repair Manual 05ESS-05
- DIAGNOSTICSSFI SYSTEM (2AZ-FE)(From August, 2004)
05-43
233 Author: Date:
DATA LIST/ACTIIVE TEST/SYSTEM CHECK/SYSTEM CHECK
1. DATA LIST
HINT:
Using the hand-held tester DATA LIST allows s

05ESS-05
- DIAGNOSTICSSFI SYSTEM (2AZ-FE)(From August, 2004)
05-43
233 Author: Date:
DATA LIST/ACTIIVE TEST/SYSTEM CHECK/SYSTEM CHECK
1. DATA LIST
HINT:
Using the hand-held tester DATA LIST allows switch, sensor, actuator and other item values to be read with-
out removing any parts. Reading the DATA LIST early in troubleshooting is one way to shorten labor time.
NOTICE:
In the table below, the values listed under ºNormal Conditionº are reference values. Do not depend
solely on the these reference values when deciding whether a part is faulty or not.
(a) Warm up the engine.
(b) Turn the ignition switch OFF.
(c) Connect the hand-held tester or the OBD II scan tool to the DLC3.
(d) Turn the ignition switch ON.
(e) Turn ON the hand-held tester or the OBD II scan tool.
(f) Enter the following menus: DIAGNOSIS / ENHANCED OBD II / DATA LIST.
(g) According to the display on tester, read the ºDATA LISTº.
Hand-held Tester DisplayMeasurement Item/Range
(Display)Normal Condition*Diagnostic Note
INJECTORInjection period/
Minimum: 0 ms, Maximum: 32.64 msIdling: 1.92 to 3.37 ms-
IGN ADVANCEIgnition timing advance/
Minimum: -64 deg., Maximum: 63.5 deg.Idling: BTDC 5 to 15 deg.-
CALC LOADCalculated load by ECM/
Minimum: 0 %, Maximum: 100 %Idling: 3.3 to 26.7 %
Racing without load (2500 rpm):
12.0 to 14.7 %
-
MAFAir flow rate from MAF meter/
Minimum: 0 gm/s, Maximum: 655 gm/s
Idling:
0.58 to 4.67 gm/second
Racing without load (2,500 rpm):
3.33 to 9.17 gm/second
If value is approximately 0.0 gm/s:
Mass air flow meter power
source circuit open
VG circuit open or short
If value is 160.0 gm/s or more:
EVG circuit open
ENGINE SPDEngine Speed/
Minimum: 0 rpm, Maximum: 16,383 rpmIdling:
550 to 750 rpm-
COOLANT TEMPCoolant temperature/
Minimum: -40C, Maximum: 140CAfter warming up: 80 to 95°C
(176 to 203°F)
If value is -40C (-40F): sensor
circuit is open
If value is 140C (284F) or
more:
sensor circuit is shorted
INTAKE AIRIntake air temperature/
Minimum: -40C, Maximum: 140CEquivalent to ambient temperature
(after cold soak)
If value is -40C (-40F): sensor
circuit is open
If value is 140C (284F) or
more:
sensor circuit is shorted
THROTTLE POSAbsolute throttle position sensor/
Minimum: 0 %, Maximum: 100 %Throttle fully closed: 6 to 16 %
Throttle fully open: 64 to 98 %Read value with ignition switch ON
(do not start engine)
CTP SWClosed throttle position switch/
ON or OFFThrottle fully closed: ON
Throttle open: OFF-
VEHICLE SPDVehicle speed/
Minimum: 0 km/h, Maximum: 255 km/hVehicle stopped: 0 km/h (0 mph)Speed indicated on speedometer
ACCEL POS #1
Accelerator pedal position sensor No.1
output voltage/
Minimum: 0 V, Maximum: 5 VAccelerator released:
0.5 to 1.1 V
Accelerator depressed:
2.6 to 4.5 V
Read value with ignition switch ON
(do not start engine)
ACCEL POS #2
Accelerator pedal position sensor No. 2
output voltage/
Minimum: 0 V, Maximum: 5 VAccelerator released:
1.2 to 2.0 V
Accelerator depressed:
3.4 to 5.3 V
Read value with ignition switch ON
(do not start engine)

Page 1392 of 2572

TOYOTA HIGHLANDER 2001 Service Repair Manual 05-44
- DIAGNOSTICSSFI SYSTEM (2AZ-FE)(From August, 2004)
234 Author: Date:
Hand-held Tester DisplayDiagnostic Note Normal Condition* Measurement Item/Range
(Display)
THROTTLE POS #2Throttle positio

05-44
- DIAGNOSTICSSFI SYSTEM (2AZ-FE)(From August, 2004)
234 Author: Date:
Hand-held Tester DisplayDiagnostic Note Normal Condition* Measurement Item/Range
(Display)
THROTTLE POS #2Throttle position sensor No. 2 output volt-
age/ Minimum: 0 V, Maximum: 5 VThrottle fully closed: 2.1 to 3.1 V
Throttle fully open: 4.5 to 5.5 VRead value with ignition switch ON
(do not start engine)
THROTTLE TARGTTarget position of throttle valve/
Minimum: 0 V, Maximum: 5 VIdling: 0.4 to 1.1 VRead value with ignition switch ON
(do not start engine)
THROTTLE OPN DUTYThrottle actuator opening duty ratio/
Minimum: 0 %, Maximum: 100 %Throttle fully closed: 0 %
When accelerator pedal is de-
pressed, duty ratio is increased
Read value with ignition switch
ON (do not start engine)
THROTTLE CLS DUTYThrottle actuator closed duty ratio/
Minimum: 0 %, Maximum: 100 %Throttle fully open: 0 %
When accelerator pedal is quick
released, duty ratio is increased
Read value with ignition switch
ON (do not start engine)
THROTTLE MOTWhether or not throttle actuator control is
permitted/ ON or OFFIdling: ONRead value with ignition switch ON
(do not start engine)
+BM
Whether or not electric throttle control
system power is input/
ON or OFF
Idling: ON-
VAPOR PRESS
Vapor Pressure/
Minimum: 97.175 kPa, Maximum:
103.425 kPa
Usable range: 60 to 110 kPaPressure inside of fuel tank as
read by vapor pressure sensor
O2S B1 S2
Oxygen sensor output voltage of the
bank 1 sensor 2/
Minimum: 0 V, Maximum: 1.275 V
Idling: 0.1 to 0.9 V
Performing INJ VOL or A/F CON-
TROL function of ACTIVE TEST
enables technician to check volt-
age output of each sensor
AFS B1 S1
A/F sensor output voltage of the bank 1
sensor 1/
Minimum: 0 V, Maximum: 7.999 V
Idling: 2.8 to 3.8 V
Performing INJ VOL or A/F CON-
TROL function of ACTIVE TEST
enables technician to check volt-
age output of each sensor
ACCEL IDL POS
Whether or not accelerator pedal position
sensor is detecting idle/
ON or OFF
Idling: ON'
THROTTLE IDL POS
Whether or not throttle position sensor is
detecting idle/
ON or OFF
Idling: ON'
FAIL #1Whether or not fail safe function is
executed/ ON or OFFETCS has failed: ON'
FAIL #2Whether or not fail safe function is
executed/ ON or OFFETCS has failed: ON'
THROTTLE INITIAL
Throttle fully closed
(learned value)
Minimum: 0 V, Maximum: 5 V
0.5 to 0.9 V'
ACCEL LEARN VAL
Accelerator fully closed
(learned value)
Minimum: 0 V, Maximum: 5 V
0.4 to 0.8 V'
THROTTLE MOTThrottle motor current
Minimum: 0 A, Maximum: 20 AIdling: 0 to 3.0 A'
SHORT FT #1Short term fuel trim of bank 1/
Minimum: -100 %, Maximum: 100 %0 ± 20 %
This item is short-term fuel com-
pensation used to maintain air-fuel
ratio at stoichiometric air-fuel ratio
LONG FT #1Long term fuel trim of bank 1/
Minimum: -100 %, Maximum: 100 %0 ± 20 %
This item is overall, long-term fuel
compensation that helps to main-
tain air-fuel ratio at stoichiometric
air fuel ratio (steadies long term
deviations of short-term fuel trim
from central value).
TOTAL FT #1Total fuel trim of bank 1/
Minimum: 0.5, Maximum: 1.496Idling: 0.5 to 1.4-

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