1998 TOYOTA LAND CRUISER Factory Repair Manual

coolant capacity child lock jump start terminals dead battery open trunk washer fluid steering wheel adjustment

Page 1417 of 3115

TOYOTA LAND CRUISER 1998 Factory Repair Manual DI-14
- DIAGNOSTICSENGINE
207 Author: Date:
7. 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. Rea

DI-14
- DIAGNOSTICSENGINE
207 Author: Date:
7. 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) Push the ºONº button of 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.
ItemMeasurement Item/Range
(Display)Normal Condition*Diagnostic Note
INJECTOR
Injection period of the
No. 1 cylinder/
Min.: 0 ms, Max.: 32.64 ms
Idling: 2.1 to 3.9 ms-
IGN ADVANCE
Ignition timing advance
for No.1 cylinder/
Min.: -64 deg., Max.: 63.5 deg.
Idling: BTDC 5 to 25°-
CALC LOADCalculated load by ECM/
Min.: 0%, Max.: 100%Idling: 12.5 to 19.7%
Racing without load (2,500 rpm):
10.7 to 17.9%
-
MAFAir flow rate from MAF sensor/
Min.: 0 gm/s, Max.: 655 gm/s
Idling:
4.1 to 6.4 gm/sec.
Racing without load (2,500 rpm):
12.5 to 20.8 gm/sec.
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 SPDEngine Speed/
Min.: 0 rpm, Max.: 16,383 rpmIdling:
650 to 750 rpm-
COOLANT TEMPCoolant temperature/
Min.: -40°C, Max.: 140°CAfter warming up:
80 to 95°C (176 to 203°F)If value is -40C (-40F): sensor
circuit is open.
INTAKE AIRIntake air temperature/
Min.: -40 °C, Max.: 140 °CEquivalent 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/
Min.: 0%, Max.: 100%Throttle fully closed: 10 to 24%
Throttle fully open: 66 to 98%Read value with the ignition switch
ON (Do not start engine).
THROTTLE INITIALThrottle fully closed rearing value0.5 to 0.9 V-
CTP SWClosed throttle position switch/
ON or OFFThrottle fully closed: ON
Throttle open: OFF-
VEHICLE SPDVehicle speed/
Min.: 0 km/h, Max.: 255 km/hVehicle stopped: 0 km/h (0 mph)Speed indicated on speedometer
O2S B1 S1
Oxygen sensor output voltage of
the bank 1 sensor 1/
Min.: 0 V, Max.: 1.275 V
Idli 01t 09V
Performing INJ VOL or A/F CON-
TROL function of ACTIVE TEST
enables the technician to check
the voltage output of each sensor.
O2S B2 S1
Oxygen sensor output voltage of
the bank 2 sensor 1/
Min.: 0 V, Max.: 1.275 V
Idling: 0.1 to 0.9 VPerforming INJ VOL or A/F CON-
TROL function of ACTIVE TEST
enables the technician to check
the voltage output of each sensor.

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TOYOTA LAND CRUISER 1998 Factory Repair Manual - DIAGNOSTICSENGINE
DI-15
208 Author: Date:
O2S B1 S2
Oxygen sensor output voltage of
the bank 1 sensor 2/
Min.: 0 V, Max.: 1.275 V
Driving 50 km/h (31 mph):
Performing INJ VOL or A/F CON-
TROL func

- DIAGNOSTICSENGINE
DI-15
208 Author: Date:
O2S B1 S2
Oxygen sensor output voltage of
the bank 1 sensor 2/
Min.: 0 V, Max.: 1.275 V
Driving 50 km/h (31 mph):
Performing INJ VOL or A/F CON-
TROL function of ACTIVE TEST
enables the technician to check
the voltage output of each sensor.
O2S B2 S2
Oxygen sensor output voltage of
the bank 2 sensor 2/
Min.: 0 V, Max.: 1.275 V
Driving 50 km/h (31 m h):
0.1 to 0.9 VPerforming INJ VOL or A/F CON-
TROL function of ACTIVE TEST
enables the technician to check
the voltage output of each sensor.
SHORT FT #1Short term fuel trim of bank 1/
Min.: -100%, Max.: 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/
Min.: -100%, Max.: 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/
Min.: 0.5, Max.: 1.496Idling: 0.5 to 1.4-
SHORT FT #2Short term fuel trim of bank 2/
Min.: -100%, Max.: 100%0 ± 20%Same as SHORT FT #1
LONG FT #2Long term fuel trim of bank 2/
Min.: -100%, Max.: 100%0 ± 20%Same as LONG FT #1
TOTAL FT #2Total fuel trim of bank 2/
Min.: 0.5, Max.: 1.496Idling: 0.5 to 1.4-
O2FT B1 S1
Short term fuel trim associated
with the bank 1, sensor 1/
Min.: -100%, Max.: 100%
0 ± 20%Same as SHORT FT #1
O2FT B1 S2
Short term fuel trim associated
with the bank 1, sensor 2/
Min.: -100%, Max.: 100%
0 ± 20%Same as SHORT FT #2
O2FT B2 S1
Short term fuel trim associated
with the bank 2, sensor 1/
Min.: -100%, Max.: 100%
0 ± 20%Same as SHORT FT #1
O2FT B2 S2
Short term fuel trim associated
with the bank 2, sensor 2/
Min.: -100%, Max.: 100%
0 ± 20%Same as SHORT FT #2
O2 LR B1 S1
Response time of the O2 sensor
lean to rich (bank 1, sensor 1)/
Min.: 0 ms, Max.: 16,711 msIdling after warming up:
0 to 1,000 ms-
O2 LR B2 S1
Response time of the O2 sensor
lean to rich (bank 2, sensor 1)/
Min.: 0 ms, Max.: 16,711 msIdling after warming up:
0 to 1,000 ms-
O2 RL B1 S1
Response time of the O2 sensor
rich to lean (bank 1, sensor 1)/
Min.: 0 ms, Max.: 16,711 ms
Idling after warming up:
-
O2 RL B2 S1
Response time of the O2 sensor
rich to lean (bank 2, sensor 1)/
Min.: 0 ms, Max.: 16,711 ms
Idling after warming u:
0 to 1,000 ms
-

Page 1419 of 3115

TOYOTA LAND CRUISER 1998 Factory Repair Manual DI-16
- DIAGNOSTICSENGINE
209 Author: Date:
FUEL SYS #1
Fuel system status (Bank1)/
OL or CL or OLDRIVE or OL-
FAULT or CLFAULT
Idli ft i CL
OL: Open Loop-has not yet sa-
tisfied conditions to go c

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- DIAGNOSTICSENGINE
209 Author: Date:
FUEL SYS #1
Fuel system status (Bank1)/
OL or CL or OLDRIVE or OL-
FAULT or CLFAULT
Idli ft i CL
OL: Open Loop-has not yet sa-
tisfied conditions to go closed
loop.
CL: Closed Loop-using oxygen
sensor(s) as feed back for fuel
control.
OL DRIVE: Open loop due to
dri ing conditions (Po er enrich
FUEL SYS #2
Fuel system status (Bank2)/
OL or CL or OLDRIVE or OL-
FAULT or CLFAULT
Idling after warming up: CLdriving conditions (Power enrich-
ment, deceleration enlargement).
OL FAULT: Open loop due to de-
tected system fault.
CL FAULT: Closed loop, but fault
with at least one oxygen sensor
may be using single oxygen sen-
sor for fuel control.
FC IDLIdle fuel cut/
ON or OFFFuel cut operation: ON
FC IDL = ºONº when throttle valve
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]Park/neutral position switch signal/
ON or OFFP or N range: ON-
ELECT LOAD SIGElectrical load signal/
ON or OFFDefogger switch ON: ON-
STOP LIGHT SWStop light switch/
ON or OFFBrake pedal depressed: ON
Brake pedal released: OFF-
FUEL PMP SP CTLFuel pump speed control status/
ON or OFFIdling: 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-
EVAP VSVVSV status for EVAP control/
ON or OFFVSV operating: ONVSV for EVAP is controlled by the
ECM (ground side duty control)
IGNITIONIgnition counter/
Min.: 0, Max.: 4000 to 400-
VAPOR PRESSVapor pressure/
Min.: -4.125 kPa, Max.: 2.125 kPaFuel tank cap removed:
0 kPaPressure inside of fuel tank as
read by the vapor pressure sen-
sor.
CYL #1 - CYL #8Misfire ratio of the cylinder/
Min.: 0%, Max.: 50%0%This item is displayed in only idling
*1: If no conditions are specifically stated for ºldlingº, it means the shift lever is in the N or P position, the A/C
switch is OFF and all accessory switches are OFF.

Page 1420 of 3115

TOYOTA LAND CRUISER 1998 Factory Repair Manual - DIAGNOSTICSENGINE
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210 Author: Date:
8. ACTIVE TEST
HINT:
Performing the ACTIVE TEST using the hand-held tester or the OBD II scan tool allows the relay, VSV, ac-
tuator and so on to operate

- DIAGNOSTICSENGINE
DI-17
210 Author: Date:
8. ACTIVE TEST
HINT:
Performing the ACTIVE TEST using the hand-held tester or the OBD II scan tool allows the relay, VSV, ac-
tuator and so on to operate without parts removal. Performing the ACTIVE TEST as a first step of trouble-
shooting is one method to shorten diagnostic time.
It is possible to display the DATA LIST 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) Push the ºONº button of 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.
ItemTest DetailsDiagnostic Note
INJ VOL
[Test Details]
Control the injection volume.
Min.: -12.5%, Max.: 24.8%
[Vehicle Condition]
Engine speed: 3,000 rpm or less.All injectors are tested at
once.
Injection volume is gradual-
ly 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
procedure enables techni-
cian to check and graph volt-
age outputs of both the A/F
sensor and heated oxygen
sensor
For displaying graph, enter
ºACTIVE TEST / A/F CON-
TROL / USER DATAº, select
ºAFS B1S1 and O2S B1S2º
by pressing ºYESº and push
ºENTERº. Then press ºF4º
FUEL PUMP / SPD
[Test Details]
Control the fuel pump speed.
ON or OFF
-
VVT CTRL B1
[Test Details]
Active VVT system (Bank 1)
ON or OFFON: Rough idle or engine
stall
OFF: Normal engine speed
VVT CTRL B2
[Test Details]
Active VVT system (Bank 2)
ON or OFFON: Rough idle or engine
stall
OFF: Normal engine speed
CAN CTRL VSV
[Test Details]
Activate the VSV for canister control.
ON or OFF
-
TANK BYPASS VSV
[Test Details]
Activate the VSV for tank bypass.
ON or OFF
-
A/C MAG CLUTCH
[Test Details]
Control the A/C magnet clutch.
ON or OFF
-
EVAP VSV (ALONE)
[Test Details]
Activate the VSV for EVAP control.
ON or OFF
-

Page 1421 of 3115

TOYOTA LAND CRUISER 1998 Factory Repair Manual DI-18
- DIAGNOSTICSENGINE
211 Author: Date:
TC/TE1
[Test Details]
Connect the TC and TE1.
ON or OFFSwitch to the same state as
the connection between
terminal TC and TE1.
FC IDL PROHBT
[Test Detail

DI-18
- DIAGNOSTICSENGINE
211 Author: Date:
TC/TE1
[Test Details]
Connect the TC and TE1.
ON or OFFSwitch to the same state as
the connection between
terminal TC and TE1.
FC IDL PROHBT
[Test Details]
Control the idle fuel cut prohibit.
ON or OFF
-
9. DEFINITION OF TERMS
TermDefinition
Monitor descriptionDescription of what the ECM monitors and how it detects malfunctions (monitoring purpose and its details).
Related DTCsDiagnostic code
Typical enabling condition
Preconditions that allow the ECM to detect malfunctions.
With all preconditions satisfied, the ECM sets the DTC when the monitored value(s) exceeds the malfunction
threshold(s).
Sequence of operation
The priority order that is applied to monitoring, if multiple sensors and components are used to detect the malfunc-
tion.
When a sensor is being monitored, the next sensor or component will not be monitored until the sensor monitoring
is finished.
Required sensor/compo-
nentsThe sensors and components that are used by the ECM to detect malfunctions.
Frequency of operation
The number of times that the ECM checks for malfunctions per driving cycle.
ºOnce per driving cycleº means that the ECM detects the malfunction only one time during a single driving cycle.
ºContinuousº means that the ECM detects malfunction every time an enabling condition is met.
DurationThe minimum time that the ECM must sense a continuous deviation in the monitored value(s) before setting a
DTC. This timing begins after the ºtypical enabling conditionsº are met.
Malfunction thresholdsBeyond this value, the ECM will conclude that there is a malfunction and set a DTC.
MIL operation
MIL illumination timing after a defect is detected.
ºImmediatelyº means that the ECM illuminates MIL the instant the ECM determines that there is a malfunction.
º2 driving cycleº means that the ECM illuminates MIL if the same malfunction is detected again in the 2nd driving
cycle.
10. TOYOTA/LEXUS PART AND SYSTEM NAME LIST
This reference list indicates the part names used in this manual along with their definitions.
TOYOTA/LEXUS nameDefinition
Toyota HCAC system, Hydro-carbon Adsorptive Catalyst
(HCAC) system, HC adsorptive three-way catalystHC adsorptive three-way catalytic converter
Variable Valve Timing sensor, VVT sensorCamshaft position sensor
Variable valve timing system, VVT systemCamshaft timing control system
Camshaft timing oil control valve, Oil control valve, OCV,
VVT, VSVCamshaft timing oil control valve
Variable timing and lift, VVTLCamshaft timing and lift control
Crankshaft position sensor ºAºCrankshaft position sensor
Engine speed sensorCrankshaft position sensor
THAIntake air temperature
Knock control moduleEngine knock control module
Knock sensorEngine knock sensor
Mass or volume air flow circuitMass air flow sensor circuit
Vacuum sensorManifold air pressure sensor
Internal control module, Control module, Engine control
ECU, PCMPower train control module
FC idleDeceleration fuel cut

Page 1422 of 3115

TOYOTA LAND CRUISER 1998 Factory Repair Manual - DIAGNOSTICSENGINE
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212 Author: Date:
Idle air control valveIdle speed control
VSV for CCV, Canister close valve VSV for canister controlEvaporative emissions canister vent valve
VSV for EVAP,

- DIAGNOSTICSENGINE
DI-19
212 Author: Date:
Idle air control valveIdle speed control
VSV for CCV, Canister close valve VSV for canister controlEvaporative emissions canister vent valve
VSV for EVAP, Vacuum switching valve assembly No. 1,
EVAP VSV, Purge VSVEvaporative emissions canister purge valve
VSV for pressure switching valve, Bypass VSVEvaporative emission pressure switching valve
Vapor pressure sensor, EVAP pressure sensor, Evaporative
emission control system pressure sensorFuel tank pressure sensor
Charcoal canisterEvaporative emissions canister
ORVR systemOn-board refueling vapor recovery system
Intake manifold runner controlIntake manifold tuning system
Intake manifold runner valve, IMRV, IACV (runner valve)Intake manifold tuning valve
Intake control VSVIntake manifold tuning solenoid valve
AFSAir fuel ratio sensor
O2 sensorHeater oxygen sensor
Oxygen sensor pumping current circuitOxygen sensor output signal
Oxygen sensor reference ground circuitOxygen sensor signal ground
Accel position sensorAccelerator pedal position sensor
Throttle actuator control motor, Actuator control motor, Elec-
tronic throttle motor, Throttle control motorElectronic throttle actuator
Electronic throttle control system, Throttle actuator control
systemElectronic throttle control system
Throttle/pedal position sensor, Throttle/pedal position switch,
Throttle position sensor/switchThrottle position sensor
Turbo press sensorTurbocharger pressure sensor
Turbo VSVTurbocharger pressure control solenoid valve
P/S pressure switchPower-steering pressure switch
VSV for ACMActive control engine mount
Speed sensor, Vehicle speed sensor ºAº, Speed sensor for
skid control ECUVehicle speed sensor
ATF temperature sensor, Trans. fluid temp. sensor, ATF
temperature sensor ºAºTransmission fluid temperature sensor
Electronic controlled automatic transmission, ECTElectronically controlled automatic
Intermediate shaft speed sensor ºAºCounter gear speed sensor
Output speed sensorOutput shaft speed sensor
Input speed sensor, Input turbine speed sensor ºAº, Speed
sensor (NT), Turbine speed sensorInput turbine speed sensor
PNP switch, NSWPark/neutral position switch
Pressure control solenoidTransmission pressure control solenoid
Shift solenoidTransmission shift solenoid valve
Transmission control switch, Shift lock control unitShift lock control module
Engine immobiliser system, Immobiliser systemVehicle anti-theft system

Page 1423 of 3115

TOYOTA LAND CRUISER 1998 Factory Repair Manual A21570
DI-20
- DIAGNOSTICSENGINE
213 Author: Date:
11. The monitor will run whenever the following DTCs are not present (Monitor disablement List)
HINT:
This table indicates ECM monitoring status fo

Page 1424 of 3115

TOYOTA LAND CRUISER 1998 Factory Repair Manual A21571
- DIAGNOSTICSENGINE
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214 Author: Date:

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