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DIAGNOSTICS − SFI SYSTEM (3MZ−FE)

05EXA−02

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 ”Normal Condition” 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 ”DATA LIST”.
Measurement Item/Range
Hand−held Tester Display Normal Condition * Diagnostic Note
(Display)

Injection period of the No. 1 cylin-

der/
INJECTOR Idling: 1.5 to 2.8 ms ¾
Minimum: 0 ms, Maximum: 32.64
ms

Ignition timing advance for No. 1

cylinder/
IGN ADVANCE Idling: BTDC 5 to 25˚ ¾
Minimum: −64 deg., Maximum:
63.5 deg.

S Idling: 10.4 to 15.6 %

Calculated load by ECM/
CALC LOAD S Running without load (2,500 ¾
Minimum: 0 %, Maximum: 100 %
rpm): 12.1 to 18.2 %
If value is approximately 0.0 gm/s:
S Mass air flow meter power
Air flow rate from MAF meter/ S Idling: 2.0 to 3.7 gm/s
source circuit open
MAF Minimum: 0 gm/s, Maximum: 655 S Running without load (2,500
S VG circuit open or short
gm/s rpm): 2.4 to 4.3 gm/s
If value is 160.0 gm/s or more:
S E2G circuit open
Engine speed/
ENGINE SPD Minimum: 0 rpm, Maximum: Idling: 580 to 750 rpm ¾
16,383 rpm
Coolant temperature/
After warming up: 80 to 97˚C
COOLANT TEMP Minimum: −40_C, Maximum: S If value is −40_C (−40_F): sensor
(176 to 207˚F)
140_C circuit is open
Intake air temperature/ S If value is 140_C (284_F or
Equivalent to ambient temp. more): sensor circuit is shorted
INTAKE AIR Minimum: −40_C, Maximum:
(after cold soak)
140_C
Absolute throttle position sensor/ S Throttle fully closed: 10 to 24 % Read value with ignition switch ON
THROTTLE POS
Minimum: 0 %, Maximum: 100 % S Throttle fully open: 64 to 96 % (do not start engine)

Closed throttle position switch/ S Throttle fully closed: ON

CTP SW ¾
ON or OFF S Throttle open: OFF
Vehicle speed/
VEHICLE SPD Minimum: 0 km/h, Maximum: 255 Actual vehicle speed Speed indicated on speedometer
km/h
S Accelerator pedal released:
Accelerator pedal position sensor
0.5 to 1.1 V Read value with ignition switch ON
ACCEL POS #1 No.1 output voltage/
S Accelerator pedal depressed: (do not start engine)
Minimum: 0 V, Maximum: 5 V
2.6 to 4.5 V

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DIAGNOSTICS − SFI SYSTEM (3MZ−FE)

Measurement Item/Range
Hand−held Tester Display Normal Condition * Diagnostic Note
(Display)

S Accelerator pedal released:

Accelerator pedal position sensor
1.2 to 2.0 V Read value with ignition switch ON
ACCEL POS #2 No. 2 output voltage/
S Accelerator pedal depressed: (do not start engine)
Minimum: 0 V, Maximum: 5 V
3.4 to 5.3 V

Throttle position sensor No. 2 out-

S Throttle fully closed: 2.1 to 3.1 V Read value with ignition switch ON
THROTTLE POS #2 put voltage/ Minimum: 0 V, Maxi-
S Throttle fully open: 4.5 to 5.5 V (do not start engine)
mum: 5 V
Target position of throttle valve/
THROTTLE TARGT Idling: 0.4 to 1.1 V ¾
Minimum: 0 V, Maximum: 5 V
S When accelerator pedal is de-
pressed, duty ratio is increased
Throttle motor opening duty ratio/
THROTTLE OPN DUTY Throttle fully closed: 0 % S Read value with ignition switch
Minimum: 0 %, Maximum: 100 %
ON
(do not start engine)
S When accelerator pedal is re-
leased quickly, duty ratio is in-
Throttle motor closed duty ratio/ creased
THROTTLE CLS DUTY Throttle fully open: 0 %
Minimum: 0 %, Maximum: 100 % S Read the value with ignition
switch ON
(do not start engine)
Whether or not throttle motor con- Read value with ignition switch ON
THROTTLE MOT Idling: ON
trol is permitted/ ON or OFF (do not start engine)

Whether or not electric throttle

+BM control system power is inputted/ Idling: ON ¾
ON or OFF
Whether or not accelerator pedal
ACCEL IDL POS position sensor is detecting idle/ Idling: ON ¾
ON or OFF
Whether or not throttle position
THROTTLE IDL POS sensor is detecting idle/ Idling: ON ¾
ON or OFF
Whether or not fail safe function is
FAIL #1 ETCS has failed: ON ¾
executed/ ON or OFF

Whether or not fail safe function is

FAIL #2 ETCS has failed: ON ¾
executed/ ON or OFF
Throttle fully closed
THROTTLE INITIAL (learned value) 0.5 to 0.9 V ¾
Minimum: 0 V, Maximum: 5 V
Accelerator fully closed
ACCEL LEARN VAL (learned value) 0.4 to 0.8 V ¾
Minimum: 0 V, Maximum: 5 V
Throttle motor current
THROTTLE MOT Idling: 0 to 3.0 A ¾
Minimum: 0 A, Maximum: 20 A

Performing INJ VOL or A/F CON-

Heated oxygen sensor output volt-
Driving (31 mph, 50 km/h): TROL function of ACTIVE TEST
O2S B1 S2 age for bank 1 sensor 2/
0.1 to 0.9 V enables the technician to check
Minimum: 0 V, Maximum: 1.0 V
voltage output of each sensor

Performing INJ VOL or A/F CON-

Heated oxygen sensor output volt-
Driving (31 mph, 50 km/h): TROL function of ACTIVE TEST
O2S B2 S2 age for bank 2 sensor 2/
0.1 to 0.9 V enables the technician to check
Minimum: 0 V, Maximum: 1.0 V
voltage output of each sensor

Performing INJ VOL or A/F CON-

A/F sensor output voltage for bank
TROL function of ACTIVE TEST
AFS B1 S1 1 sensor 1/ Idling 2.8 to 3.8 V
enables the technician to check
Minimum: 0 V, Maximum: 7.999 V
voltage output of each sensor
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DIAGNOSTICS − SFI SYSTEM (3MZ−FE)

Measurement Item/Range
Hand−held Tester Display Normal Condition * Diagnostic Note
(Display)

Performing INJ VOL or A/F CON-

A/F sensor output voltage for bank
TROL function of ACTIVE TEST
AFS B2 S1 2 sensor 1/ Idling 2.8 to 3.8 V
enables the technician to check
Minimum: 0 V, Maximum: 7.999 V
voltage output of each sensor

Vapor Pressure/
Pressure inside of fuel tank as
VAPOR PRESS Minimum: −4.125 kPa, Maximum: Fuel tank cap removed: 0 kPa
read by the vapor pressure sensor
2.125 kPa
Short term fuel trim of bank 1/ This item is short−term fuel com-
SHORT FT #1 Minimum: −100 %, Maximum: 100 0 ± 20 % pensation used to maintain air−fuel
% ratio at stoichiometric air−fuel ratio
This item is overall, long−term fuel
compensation that helps to main-
Long term fuel trim of bank 1/
tain air−fuel ratio at stoichiometric
LONG FT #1 Minimum: −100 %, Maximum: 100 0 ± 20 %
air−fuel ratio (steadies long term
%
deviations of short−term fuel trim
from central value)
Total fuel trim of bank 1:
Average value for fuel trim system
TOTAL FT #1 Idling: 0.5 to 1.4 ¾
of bank 1/
Minimum: 0.5, Maximum: 1.496

Short term fuel trim of bank 2/ This item is short−term fuel com-
SHORT FT #2 Minimum: −100 %, Maximum: 100 0 ± 20 % pensation used to maintain air−fuel
% ratio at stoichiometric air−fuel ratio
This item is overall, long−term fuel
compensation that helps to main-
Long term fuel trim of bank 2/
tain air−fuel ratio at stoichiometric
LONG FT #2 Minimum: −100 %, Maximum: 100 0 ± 20 %
air−fuel ratio (steadies long term
%
deviation of short−term fuel trim
from central value)
Total fuel trim of bank 2:
Average value for fuel trim system
TOTAL FT #2 Idling: 0.5 to 1.4 ¾
of bank 2/
Minimum: 0.5, Maximum: 1.496

Short term fuel trim associated

with the bank 1 sensor 2/
O2FT B1 S2 0 ± 20 % Same as SHORT FT #1
Minimum: −100 %, Maximum: 100
%

Short term fuel trim associated

with the bank 2 sensor 2/
O2FT B2 S2 0 ± 20 % Same as SHORT FT #2
Minimum: −100 %, Maximum: 100
%

S Value less than 1 (0.000 to

Short term fuel trim associated 0.999) = Lean
AF FT B1 S1 with bank 1 sensor 1/ S Stoichiometric air−fuel ratio = 1 ¾
Minimum: 0, Maximum: 1.999 S Value greater than 1 (1.001 to
1.999) = Rich
Short term fuel trim associated S Lean: 0 % AF FT B2 S1 < 1
AF FT B2 S1 with bank 2 sensor 1/ S Stoichiometric air−fuel ratio = 1 ¾
Minimum: 0, Maximum: 1.999 S Rich: 1 % AF FT B2 S1< 1.999

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DIAGNOSTICS − SFI SYSTEM (3MZ−FE)

Measurement Item/Range
Hand−held Tester Display Normal Condition * Diagnostic Note
(Display)

S OL (Open Loop): Has not yet sa-

tisfied conditions to go closed
loop
S CL (Closed Loop): Using heated
oxygen sensor(s) as feed back
for fuel control
Fuel system status (Bank 1) / S OL DRIVE: Open loop due to
FUEL SYS #1 OL or CL or OL DRIVE or Idling after warming up: CL driving conditions (fuel enrich-
OL FAULT or CL FAULT ment)
S OL FAULT: Open loop due to de-
tected system fault
S CL FAULT: Closed loop but one
of heated oxygen sensors, which
is used for fuel control, is mal-
functioning
S OL (Open Loop): Has not yet sa-
tisfied conditions to go closed
loop
S CL (Closed Loop): Using heated
oxygen sensor(s) as feed back
for fuel control
Fuel system status (Bank 2) / S OL DRIVE: Open loop due to
FUEL SYS #2 OL or CL or OL DRIVE or Idling after warming up: CL driving conditions (fuel enrich-
OL FAULT or CL FAULT ment)
S OL FAULT: Open loop due to de-
tected system fault
S CL FAULT: Closed loop but one
of heated oxygen sensors, which
is used for fuel control, is mal-
functioning
FC IDL = ON when throttle valve
FC IDL Fuel cut idle/ ON or OFF Fuel cut operation: ON is fully closed and engine speed is
over 1,500 rpm
MIL MIL status/ ON or OFF MIL ON: ON ¾
STARTER SIG Starter signal/ ON or OFF Cranking: ON ¾
A/C SIG A/C signal/ ON or OFF A/C ON: ON ¾
PNP SW [NSW] PNP switch signal/ ON or OFF P or N position: ON ¾
Electrical load signal/ S Taillamp switch ON: ON
ELECT LOAD SIG ¾
ON or OFF S Defogger switch ON: ON

Stop light switch/ S Brake pedal depressed: ON

STOP LIGHT SW ¾
ON or OFF S Brake pedal released: OFF
S While turning the steering wheel:
Power steering oil pressure switch ON Idle−up control is performed when
PS OIL PRESS SW
signal/ ON or OFF S While not turning the steering PS is ON
wheel: OFF

Power steering signal/ This signal is usually ON until the

PS SIGNAL When steering wheel is turned
ON or OFF Ignition switch is turned OFF
VSV status for intake control (bank
INTAKE CTL VSV1 VSV operation: ON ¾
1)/ ON or OFF

VSV status for intake control (bank

INTAKE CTL VSV 2 VSV operation: ON ¾
1)/ ON or OFF
Fuel pump/speed status/
FUEL PUMP / SPD Idling: ON ¾
ON/H or OFF/M, L

A/C magnet clutch status/

A/C MAG CLUTCH A/C magnet clutch ON: ON ¾
ON or OFF

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DIAGNOSTICS − SFI SYSTEM (3MZ−FE)

Measurement Item/Range
Hand−held Tester Display Normal Condition * Diagnostic Note
(Display)

VSV status for EVAP control/ EVAP VSV is controlled by the

EVAP VSV VSV operating: ON
ON or OFF ECM (ground side duty control)
VSV status for boost pressure
BOOST PRESS VSV control/ VSV operating: ON ¾
ON or OFF
Ignition counter/ Minimum: 0, Max-
IGNITION 0 to 600 ¾
imum: 600
Misfire ratio of cylinder 1 to 6/
CYL #1, #2, #3, #4, #5, #6 0% This item is displayed in only idling
Minimum: 0 %, Maximum: 50 %

Engine load for first misfire range/

MISFIRE LOAD Minimum: 0 g/rev, Maximum: 3.98 Misfire 0: 0 g/rev. ¾
g/rev.
Engine RPM for first misfire range/
MISFIRE RPM Minimum: 0 rpm, Maximum: 6,375 Misfire 0: 0 rpm ¾
rpm
Fuel cut is being performed under
Fuel Cut TAU: Fuel cut during very very light load to prevent engine
FC TAU Fuel cut operating: ON
light load/ ON or OFF combustion from becoming incom-
plete

CHECK MODE Check mode/ ON or OFF Check mode ON: ON See step 3
HINT:
*: If no conditions are specifically stated for ”ldling”, 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 ”ACTIVE TEST”.
Hand−held Tester Display Test Details Diagnostic Note
[Test Details]
S All injectors are tested at once
Control injection volume
S Injection volume is gradually
INJ VOL Minimum: −12.5 %, Maximum: 25 %
changed between −12.5 and 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
[Test Details] the A/F sensor and heated oxygen
Control injection volume sensor
A/F CONTROL −12.5 or 25 % (change injection volume −12.5 % or 25 %) For displaying graph, enter ”AC-
[Vehicle Condition] TIVE TEST / A/F CONTROL /
Engine speed: 3,000 rpm or less USER DATA”, select ”AFS B1S1
and O2S B1S2” by pressing ”YES”
and push ”ENTER”. Then press
”F4”

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DIAGNOSTICS − SFI SYSTEM (3MZ−FE)

Hand−held Tester Display Test Details Diagnostic Note

[Test Details]
INTAKE CTL VSV1 Activate VSV for intake control ¾
ON or OFF
[Test Details]
CAN CTRL VSV Activate VSV for canister control ¾
ON or OFF
[Test Details]
EVAP VSV (ALONE) Activate EVAP VSV control ¾
ON or OFF
[Test Details]
A/C MAG CLUTCH Control A/C magnet clutch ¾
ON or OFF
[Test Details]
FUEL PUMP / SPD Control the fuel pump ¾
ON or OFF
[Test Details]
S ON: Rough idle or engine stall
VVT CTRL B1 Active VVT system (bank 1)
S OFF: Normal engine speed
ON or OFF
[Test Details]
S ON: Rough idle or engine stall
VVT CTRL B2 Active VVT system (bank 2)
S OFF: Normal engine speed
ON or OFF
[Test Details]
ACM INHIBIT Control ACM inhibit ¾
ON or OFF
[Test Details]
TC/TE1 Connect TC and TE1 ¾
ON or OFF
[Test Details]
FC IDL PROHBT Control idle fuel cut prohibit ¾
ON or OFF

2004 HIGHLANDER REPAIR MANUAL (RM1086U)