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 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 OFF
Throttle 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 V
Accelerator 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 V
Accelerator 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)

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- DIAGNOSTICSSFI SYSTEM (2AZ-FE)(From August, 2004)
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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 V
Throttle 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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Hand-held Tester DisplayDiagnostic Note Normal Condition* Measurement Item/Range
(Display)
AF FT B1 S1
Short term fuel trim associated with bank
1, sensor 1/
Minimum: 0, Maximum: 1.999

Value less than 1 (0.000 to
0.999) = LEAN

Stoichiometric Air-Fuel Ratio=1

Value greater than 1 (1.001 to
1.999) = RICH
-
FUEL SYS #1
Fuel system status (Bank 1) /
OL or CL or OL DRIVE or
OL FAULT or CL FAULT
Idling after warming up: CL

OL (Open Loop) : Has not yet sa-
tisfied conditions to go closed
loop

CL (Closed Loop) : Using heated
oxygen sensor(s) as feed back
for fuel control

OL DRIVE: Open loop due to
driving conditions (fuel enrich-
ment)

OL FAULT: Open loop due to de-
tected system fault

CL FAULT: Closed loop but one
of heated oxygen sensors, which
is used for fuel control, is mal-
functioning
FC IDLIdle fuel cut/ ON or OFFFuel cut operation: ON
FC IDL = ON when throttle valve
is fully closed and engine speed is
over 1,500 rpm
MILMIL status/ ON or OFFMIL ON: ON-
STARTER SIGStarter signal/ ON or OFFCranking: ON-
A/C SIGA/C signal/ ON or OFFA/C ON: ON-
PNP SW [NSW]PNP switch signal/ ON or OFFP or N position: ON-
ELECT LOAD SIGElectrical load signal/ ON or OFFDefogger switch ON: ON-
STOP LIGHT SWStop lamp switch/ ON or OFF
Brake pedal depressed: ON

Brake pedal released: OFF-
PS OIL PRESS SWPower steering signal/ ON or OFF

While turning steering wheel: ON

While not turning steering wheel:
OFFIdle-up control is performed when
PS is ON
PS SIGNALPower steering signal/
ON or OFFWhen steering wheel is turnedThis signal is usually ON until Igni-
tion switch is turned OFF
FUEL PUMP / SPDFuel pump / speed status /
ON/H or OFF/M,LIdling: ON-
A/C MAG CLUTCHA/C magnet clutch status /
ON or OFFA/C magnet clutch ON: ON-
EVAP VSVEVAP VSV status control /
ON or OFFVSV operating: ONEVAP VSV is controlled by ECM
(ground side duty control)
VVT CTRL B1VVT control status (Bank 1) /
ON or OFFVVT system operation: ON-
IGNITIONIgnition counter/ Minimum: 0,
Maximum: 4000 to 400-
CYL #1, #2, #3, #4Misfire ratio of cylinder 1 to 4/
Minimum: 0 %, Maximum: 50 %0 %This item is displayed in only idling
MISFIRE LOADEngine load for first misfire range/
Minimum: 0 g/rev, Maximum: 3.98 g/rev.Misfire 0: 0 g/rev.'
MISFIRE RPMEngine RPM for first misfire range/
Minimum: 0 rpm, Maximum: 6,375 rpmMisfire 0: 0 rpm'
FC TAUFuel Cut TAU: Fuel cut during very light
load/ ON or OFFFuel cut operating: ON
Fuel cut is being performed under
very light load to prevent engine
combustion from becoming incom-
plete
CHECK MODECheck mode/ ON or OFFCheck mode ON: ONSee page 05-40

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- DIAGNOSTICSSFI SYSTEM (2AZ-FE)(From August, 2004)
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HINT:
*: If no conditions are specifically stated for ºldlingº, the shift lever is in the N or P position, the A/C switch
is OFF and all accessory switches are OFF.
2. ACTIVE TEST
HINT:
Performing the hand-held tester ACTIVE TEST allows relay, VSV, actuator and other items to be operated
without removing any parts. Performing the ACTIVE TEST early in troubleshooting is one way to shorten
labor time. The DATA LIST can be displayed during the ACTIVE TEST.
(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 / ACTIVE TEST.
(g) According to the display on tester, perform the ºACTIVE TEST.
Hand-held Tester DisplayTest DetailsDiagnostic Note
INJ VOL
[Test Details]
Control injection volume
Minimum: -12.5 %, Maximum: 25 %
[Vehicle Condition]
Engine speed: 3000 rpm or less
All injectors are tested at once

Injection volume is gradually
changed between -12.5 and 25
%
A/F CONTROL
[Test Details]
Control injection volume
-12.5 or 25 % (change the injection volume -12.5 % or 25 %)
[Vehicle Condition]
Engine speed: 3000 rpm or less
Following A/F CONTROL proce-
dure enables technician to check
and graph voltage outputs of both
A/F sensor and heated oxygen
sensor
For displaying the graph, enter
ºACTIVE TEST / A/F CONTROL /
USER DATAº, select ºAFS B1S1
and O2S B1S2º by pressing ºYESº
and push ºENTERº, Then press
ºF4º
EVAP VSV (ALONE)
[Test Details]
Activate EVAP VSV control
ON or OFF
-
A/C MAG CLUTCH
[Test Details]
Control A/C magnet clutch
ON or OFF
-
FUEL PUMP / SPD
[Test Details]
Control fuel pump
ON or OFF
-
VCUUM PUMP (ALONE)
[Test Details]
Vacuum pump
ON or OFF
-
VENT VALVE (ALONE)
[Test Details]
Vent valve
ON or OFF
-
VVT CTRL B1
[Test Details]
Activate VVT system (Bank 1)
ON or OFF
ON: Rough idle or engine stall

OFF: Normal engine speed
TC/TE1
[Test Details]
Connect TC and TE1
ON or OFF
-
FC IDL PROHBT
[Test Details]
Control idle fuel cut prohibit
ON or OFF
-

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Hand-held Tester DisplayDiagnostic Note Test Details
TC/TE1
[Test Details]
Connect TC and TE1
ON or OFF
-
FC IDL PROHBT
[Test Details]
Control idle fuel cut prohibit
ON or OFF
-
3. SYSTEM CHECK
HINT:
Performing the hand-held tester SYSTEM CHECK allows the system which is composed of multiple actua-
tors to be operated without removing any parts.
Operate the system by performing SYSTEM CHECK and check for DTCs. And, potential malfunctions in the
system can be detected on the tester.
(a) Connect the hand-held tester to the DLC3.
(b) Turn ON the ignition switch and the hand-held tester.
(c) Enter the following menus: DIAGNOSIS / ENHANCED OBD II / SYSTEM CHECK.
(d) According to the display on the tester, perform the ºSYSTEM CHECK.
Hand-held Tester DisplayTest DetailsDiagnostic Note
EVAP SYS CHECK
(AUTO OPERATION)EVAP key-off monitor is operated automatically by performing 7 steps
in order.
Fuel temperature: 35C (95F) or less is recommended

If there is no DTC displayed on
PENDING DTC after SYSTEM
CHECK, system is functioning
normally
Refer to EVAP INSPECTION
PROCEDURE
(on page 05-317)
EVAP SYS CHECK
(MANUAL OPERATION)EVAP key-off monitor is operated manually by performing 7 steps in
order.
Fuel temperature: 35C (95F) or less is recommended

Used to detect a malfunctioning
part
Refer to EVAP INSPECTION
PROCEDURE
(on page 05-317)

05EXA-04
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- DIAGNOSTICSSFI SYSTEM (3MZ-FE)(From August, 2004)
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DATA LIST/ACTIVE TEST
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 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.
(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
INJECTOR
Injection period of the No. 1 cylin-
der/
Minimum: 0 ms, Maximum: 32.64
ms
Idling: 1.5 to 2.8 ms'
IGN ADVANCE
Ignition timing advance for No. 1
cylinder/
Minimum: -64 deg., Maximum:
63.5 deg.
Idling: BTDC 5 to 25°'
CALC LOADCalculated load by ECM/
Minimum: 0 %, Maximum: 100 %
Idling: 10.4 to 15.6 %

Running without load (2,500
rpm): 12.1 to 18.2 %
'
MAF
Air flow rate from MAF meter/
Minimum: 0 gm/s, Maximum: 655
gm/s
Idling: 2.0 to 3.7 gm/s

Running without load (2,500
rpm): 2.4 to 4.3 gm/s
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:

E2G circuit open
ENGINE SPD
Engine speed/
Minimum: 0 rpm, Maximum:
16,383 rpm
Idling: 580 to 750 rpm'
COOLANT TEMP
Coolant temperature/
Minimum: -40C, Maximum:
140CAfter warming up: 80 to 97°C
(176 to 207°F)
If value is -40C (-40F): sensor
circuit is open
INTAKE AIR
Intake air temperature/
Minimum: -40C, Maximum:
140CEquivalent to ambient temp.
(after cold soak)
circuit is oen

If value is 140C (284F or
more): sensor circuit is shorted
THROTTLE POSAbsolute throttle position sensor/
Minimum: 0 %, Maximum: 100 %
Throttle fully closed: 10 to 24 %

Throttle fully open: 64 to 96 %Read value with ignition switch ON
(do not start engine)
CTP SWClosed throttle position switch/
ON or OFF
Throttle fully closed: ON

Throttle open: OFF'
VEHICLE SPD
Vehicle speed/
Minimum: 0 km/h, Maximum: 255
km/h
Actual vehicle speedSpeed indicated on speedometer
ACCEL POS #1
Accelerator pedal position sensor
No.1 output voltage/
Minimum: 0 V, Maximum: 5 V
Accelerator pedal released:
0.5 to 1.1 V

Accelerator pedal depressed:
2.6 to 4.5 V
Read value with ignition switch ON
(do not start engine)

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Hand-held Tester DisplayDiagnostic Note Normal Condition * Measurement Item/Range
(Display)
ACCEL POS #2
Accelerator pedal position sensor
No. 2 output voltage/
Minimum: 0 V, Maximum: 5 V
Accelerator pedal released:
1.2 to 2.0 V

Accelerator pedal depressed:
3.4 to 5.3 V
Read value with ignition switch ON
(do not start engine)
THROTTLE POS #2
Throttle position sensor No. 2 out-
put voltage/ Minimum: 0 V, Maxi-
mum: 5 V
Throttle 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 V'
THROTTLE OPN DUTYThrottle motor 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 motor closed duty ratio/
Minimum: 0 %, Maximum: 100 %Throttle fully open: 0 %

When accelerator pedal is re-
leased quickly, duty ratio is in-
creased

Read the value with ignition
switch ON
(do not start engine)
THROTTLE MOTWhether or not throttle motor con-
trol 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 inputted/
ON or OFF
Idling: ON'
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'
O2S B1 S2
Heated oxygen sensor output volt-
age for bank 1 sensor 2/
Minimum: 0 V, Maximum: 1.0 VDriving (31 mph, 50 km/h):
0.1 to 0.9 V
Performing INJ VOL or A/F CON-
TROL function of ACTIVE TEST
enables the technician to check
voltage output of each sensor
O2S B2 S2
Heated oxygen sensor output volt-
age for bank 2 sensor 2/
Minimum: 0 V, Maximum: 1.0 VDriving (31 mph, 50 km/h):
0.1 to 0.9 V
Performing INJ VOL or A/F CON-
TROL function of ACTIVE TEST
enables the technician to check
voltage output of each sensor
AFS B1 S1
A/F sensor output voltage for 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 the technician to check
voltage output of each sensor

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Hand-held Tester DisplayDiagnostic Note Normal Condition * Measurement Item/Range
(Display)
AFS B2 S1
A/F sensor output voltage for bank
2 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 the technician to check
voltage output of each sensor
VAPOR PRESS
Vapor Pressure/
Minimum: -4.125 kPa, Maximum:
2.125 kPa
Fuel tank cap removed: 0 kPaPressure inside of fuel tank as
read by the vapor pressure sensor
SHORT FT #1
Short 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 #1
Long 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 #1
Total fuel trim of bank 1:
Average value for fuel trim system
of bank 1/
Minimum: 0.5, Maximum: 1.496
Idling: 0.5 to 1.4'
SHORT FT #2
Short term fuel trim of bank 2/
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 #2
Long term fuel trim of bank 2/
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
deviation of short-term fuel trim
from central value)
TOTAL FT #2
Total fuel trim of bank 2:
Average value for fuel trim system
of bank 2/
Minimum: 0.5, Maximum: 1.496
Idling: 0.5 to 1.4'
O2FT B1 S2
Short term fuel trim associated
with the bank 1 sensor 2/
Minimum: -100 %, Maximum: 100
%
0 ± 20 %Same as SHORT FT #1
O2FT B2 S2
Short term fuel trim associated
with the bank 2 sensor 2/
Minimum: -100 %, Maximum: 100
%
0 ± 20 %Same as SHORT FT #2
AF FT B1 S1
Short term fuel trim associated
with bank 1 sensor 1/
Minimum: 0, Maximum: 1.999

Value less than 1 (0.000 to
0.999) = Lean

Stoichiometric air-fuel ratio = 1

Value greater than 1 (1.001 to
1.999) = Rich
'
AF FT B2 S1
Short term fuel trim associated
with bank 2 sensor 1/
Minimum: 0, Maximum: 1.999
Lean: 0
AF FT B2 S1 < 1

Stoichiometric air-fuel ratio = 1

Rich: 1
AF FT B2 S1< 1.999
'

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Hand-held Tester DisplayDiagnostic Note Normal Condition * Measurement Item/Range
(Display)
FUEL SYS #1
Fuel system status (Bank 1) /
OL or CL or OL DRIVE or
OL FAULT or CL FAULT
Idling after warming up: CL

OL (Open Loop): Has not yet sa-
tisfied conditions to go closed
loop

CL (Closed Loop): Using heated
oxygen sensor(s) as feed back
for fuel control

OL DRIVE: Open loop due to
driving conditions (fuel enrich-
ment)

OL FAULT: Open loop due to de-
tected system fault

CL FAULT: Closed loop but one
of heated oxygen sensors, which
is used for fuel control, is mal-
functioning
FUEL SYS #2
Fuel system status (Bank 2) /
OL or CL or OL DRIVE or
OL FAULT or CL FAULT
Idling after warming up: CL

OL (Open Loop): Has not yet sa-
tisfied conditions to go closed
loop

CL (Closed Loop): Using heated
oxygen sensor(s) as feed back
for fuel control

OL DRIVE: Open loop due to
driving conditions (fuel enrich-
ment)

OL FAULT: Open loop due to de-
tected system fault

CL FAULT: Closed loop but one
of heated oxygen sensors, which
is used for fuel control, is mal-
functioning
FC IDLFuel cut idle/ ON or OFFFuel cut operation: ON
FC IDL = ON when throttle valve
is fully closed and engine speed is
over 1,500 rpm
MILMIL status/ ON or OFFMIL ON: ON'
STARTER SIGStarter signal/ ON or OFFCranking: ON'
A/C SIGA/C signal/ ON or OFFA/C ON: ON'
PNP SW [NSW]PNP switch signal/ ON or OFFP or N position: ON'
ELECT LOAD SIGElectrical load signal/
ON or OFF
Taillamp switch ON: ON

Defogger switch ON: ON'
STOP LIGHT SWStop light switch/
ON or OFF
Brake pedal depressed: ON

Brake pedal released: OFF'
PS OIL PRESS SWPower steering oil pressure switch
signal/ ON or OFF

While turning the steering wheel:
ON

While not turning the steering
wheel: OFF
Idle-up control is performed when
PS is ON
PS SIGNALPower steering signal/
ON or OFFWhen steering wheel is turnedThis signal is usually ON until the
Ignition switch is turned OFF
INTAKE CTL VSV1VSV status for intake control (bank
1)/ ON or OFFVSV operation: ON'
INTAKE CTL VSV 2VSV status for intake control (bank
2)/ ON or OFFVSV operation: ON'
FUEL PUMP / SPDFuel pump/speed status/
ON/H or OFF/M, LIdling: ON'
A/C MAG CLUTCHA/C magnet clutch status/
ON or OFFA/C magnet clutch ON: ON'

05-410
- DIAGNOSTICSSFI SYSTEM (3MZ-FE)(From August, 2004)
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: Date
:
Hand-held Tester DisplayDiagnostic Note Normal Condition * Measurement Item/Range
(Display)
EVAP VSVVSV status for EVAP control/
ON or OFFVSV operating: ONEVAP VSV is controlled by the
ECM (ground side duty control)
BOOST PRESS VSV
VSV status for boost pressure
control/
ON or OFF
VSV operating: ON'
IGNITIONIgnition counter/ Minimum: 0, Max-
imum: 6000 to 600'
CYL #1, #2, #3, #4, #5, #6Misfire ratio of cylinder 1 to 6/
Minimum: 0 %, Maximum: 50 %0 %This item is displayed in only idling
MISFIRE LOAD
Engine load for first misfire range/
Minimum: 0 g/rev, Maximum: 3.98
g/rev.
Misfire 0: 0 g/rev.'
MISFIRE RPM
Engine RPM for first misfire range/
Minimum: 0 rpm, Maximum: 6,375
rpm
Misfire 0: 0 rpm'
FC TAUFuel Cut TAU: Fuel cut during very
light load/ ON or OFFFuel cut operating: ON
Fuel cut is being performed under
very light load to prevent engine
combustion from becoming incom-
plete
CHECK MODECheck mode/ ON or OFFCheck mode ON: ONSee step 3
HINT:
*: If no conditions are specifically stated for ºldlingº, the shift lever is in the N or P position, the A/C switch
is OFF and all accessory switches are OFF.
2. ACTIVE TEST
HINT:
Performing the hand-held tester ACTIVE TEST allows relay, VSV, actuator and other items to be operated
without removing any parts. Performing the ACTIVE TEST early in troubleshooting is one way to shorten
labor time. The DATA LIST can be displayed during the ACTIVE TEST.
(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 / ACTIVE TEST.
(g) According to the display on tester, perform the ºACTIVE TESTº.
Hand-held Tester DisplayTest DetailsDiagnostic Note
INJ VOL
[Test Details]
Control injection volume
Minimum: -12.5 %, Maximum: 25 %
[Vehicle Condition]
Engine speed: 3,000 rpm or less
All injectors are tested at once

Injection volume is gradually
changed between -12.5 and 25
%
A/F CONTROL
[Test Details]
Control injection volume
-12.5 or 25 % (change injection volume -12.5 % or 25 %)
[Vehicle Condition]
Engine speed: 3,000 rpm or less
Following A/F CONTROL proce-
dure enables technician to check
and graph voltage outputs of both
the A/F sensor and heated oxygen
sensor
For displaying graph, enter ºAC-
TIVE TEST / A/F CONTROL /
USER DATAº, select ºAFS B1S1
and O2S B1S2º by pressing ºYESº
and push ºENTERº. Then press
ºF4º