1998 TOYOTA LAND CRUISER Factory Repair Manual

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Page 1217 of 3115

TOYOTA LAND CRUISER 1998 Factory Repair Manual A20646
20V
/Division Injector Signal Waveform
20V
/Division
GND
100 msec./Division (Idling)(Magnification)
GND
1 msec./Division (Idling)
Injection duration
DI-168
- DIAGNOSTICSENGINE
361 Author: Date

Page 1218 of 3115

TOYOTA LAND CRUISER 1998 Factory Repair Manual Crankshaft position sensor
(36-2 teeth or 12 teeth) Camshaft position sensor
ECM
A20490
- DIAGNOSTICSENGINE
DI-169
362 Author: Date:
2004 LAND CRUISER (RM1071U)
MONITOR DESCRIPTION
The ECM illumi

Page 1219 of 3115

TOYOTA LAND CRUISER 1998 Factory Repair Manual DI-170
- DIAGNOSTICSENGINE
363 Author: Date:
2004 LAND CRUISER (RM1071U)
TYPICAL ENABLING CONDITIONS
ItSpecificationItemMinimumMaximum
The monitor will run whenever the follow-
ing DTCs are not pr

Page 1220 of 3115

TOYOTA LAND CRUISER 1998 Factory Repair Manual A19966
Battery I18
Ignition SW
#8#6 #4 #2
#7 #5ECM
#3 #1
7
5 2 1
4
3 3
1C1 F15
FL BlockEngine Room J/B
1B 6Cowl Side J/B LH
6
E7
E7 E6E5
Y
W G R
IG2
AM2E5 E5 E5 E5
5 I9
Injector No. 1
I16
Injector No.

Page 1221 of 3115

TOYOTA LAND CRUISER 1998 Factory Repair Manual DI-172
- DIAGNOSTICSENGINE
365 Author: Date:
2004 LAND CRUISER (RM1071U)
CONFIRMATION DRIVING PATTERN
(a) Connect the hand-held tester to the DLC3.
(b) Record DTC and the freeze frame data.
(c) U

DI-172
- DIAGNOSTICSENGINE
365 Author: Date:
2004 LAND CRUISER (RM1071U)
CONFIRMATION DRIVING PATTERN
(a) Connect the hand-held tester to the DLC3.
(b) Record DTC and the freeze frame data.
(c) Use the hand-held tester to set to the check mode (See page DI-3).
(d) Read the value on the misfire counter for each cylinder when idling. If the value is displayed on the
misfire counter, skip the following procedure of confirmation driving.
(e) Drive the vehicle several times with the engine speed, load and its surrounding range shown with EN-
GINE SPD, CALC LOAD in the freeze frame data or MISFIRE RPM, MISFIRE LOAD in the DATA LIST.
If you have no hand-held tester, turn the ignition switch OFF after the symptom is simulated once. Then re-
peat the simulation process again.
HINT:
In order to memorize the DTC of misfire, it is necessary to drive around MISFIRE RPM, MISFIRE LOAD in
the DATA LIST for the following period of time. Take care not to turn the ignition switch OFF. Turning the
ignition switch OFF switches the diagnosis system from check mode to normal mode. So all DTCs, etc., are
erased.
Engine SpeedTime
Idling3 minutes 30 seconds or more
1,000 rpm3 minutes or more
2,000 rpm1 minute 30 seconds or more
3,000 rpm1 minute or more
(f) Check if there is misfire and DTC and the freeze frame data. Record the DTC's, freeze frame data and
misfire counter data.
(g) Turn the ignition switch OFF and wait at least 5 seconds.
INSPECTION PROCEDURE
HINT:
If DTCs besides misfire DTCs are memorized simultaneously, troubleshoot the non-misfire DTCs first.
If the misfire does not occur when the vehicle is brought to the workshop, the misfire can be confirmed
by reproducing the condition of the freeze frame data. Also, after finishing the repair, confirm that there
is no misfire (See confirmation driving pattern).
On 6 and 8 cylinder engines, misfiring cylinder identification is disabled at high engine speed and only
a general misfire fault code P0300 is stored instead of a cylinder specific misfire fault code (P0301 to
P0308).
If the misfire starts in a high engine speed area or the misfire occurs only in a high engine speed area,
only code P0300 may be stored.
When only a general misfire fault code like P0300 is stored:
Erase the general misfire fault code from the hand-held tester or OBD II scan tool.
Start the engine and drive the confirmation patten.
Read the value of the misfire ratio for each cylinder. Or read the DTC.
Perform repairs on the cylinder that has a high misfire ratio. Or repair the cylinder indicated by the DTC.
After finishing repairs, drive the confirmation pattern again and confirm that no misfire occurs.
When either of SHORT FT #1, LONG FT #1, SHORT FT #2 or LONG FT #2 in the freeze frame data
is over the range of ±20 %, there is a possibility that the air-fuel ratio is becoming RICH (-20 % or
less) or LEAN (+20 % or more).
When COOLANT TEMP in the freeze frame data is less than 80°C (176°F), there is a possibility of
misfire only during engine warm-up.
If the misfire cannot be reproduced, the following reasons may apply: 1) the vehicle has low fuel, 2)
improper fuel is being used, and 3) the ignition plug is contaminated.

Page 1222 of 3115

TOYOTA LAND CRUISER 1998 Factory Repair Manual - DIAGNOSTICSENGINE
DI-173
366 Author: Date:
2004 LAND CRUISER (RM1071U)
Be sure to check the value on the misfire counter after the repair.
1 Are there any other codes (besides DTC P0300, P0301,

Page 1223 of 3115

TOYOTA LAND CRUISER 1998 Factory Repair Manual DI-174
- DIAGNOSTICSENGINE
367 Author: Date:
2004 LAND CRUISER (RM1071U)
4 Connect hand-held tester, and read the number of misfire.
PREPARATION:
(a) Connect the hand-held tester or the OBD II

Page 1224 of 3115

TOYOTA LAND CRUISER 1998 Factory Repair Manual A19885
1.1 mm
- DIAGNOSTICSENGINE
DI-175
368 Author: Date:
2004 LAND CRUISER (RM1071U)
5 Check spark plug and spark of misfiring cylinder.
PREPARATION:
(a) Remove the ignition coil assembly.
(b) R

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