change time ISUZU TROOPER 1998 Service Manual PDF

8DÐ118 WIRING SYSTEM
QOS and EGR System (4JG2)
General Description
The circuit consists of the starter switch, QOS/EGR
control unit, glow relay, charge relay, fuel cut
solenoid, dropping resistor, thermo sensor, glow
indicator light (meter), glow plug, vehicle speed
sensor, tacho sensor, throttle position sensor, EVRV
and VSV; EGR.
The engine coolant temperature at the time of the
engine start-up is sensed by the thermo sensor to
change the glow time so that the optimum starting
conditions can always be obtained.
The idling speed just after the engine start-up can
also be placed in the most suitable conditions in
accordance with the coolant temperature by the
operation of the delay timer.The indicator timer is activated upon the starter
switch turned to the ON position, and the indicator
light comes on for as much time as suitable for the
engine coolant temperature at the time of the
engine start-up.
EGR system controls the information of NOx by
returning a small amount of exhaust gas from the
intake manifold to the combustion chamber
through the EGR valve.

8DÐ408 WIRING SYSTEM
Step Action Yes No
The control unit makes lock/unlock response once with interval of
one second.
Is the response complete?
The control unit makes lock/unlock response three times with
interval of one second.
Is the response complete? 12
13Finished
FinishedÑ
Ñ
Step Action Yes No
1. Open the driverÕs side door.
2. Turn the starter switch off.
Is the action complete?
Turn the starter switch to ACC position and then off three times
within five seconds after step 1.
Is the action complete within five seconds?
Close the door and then open it two times within ten seconds after
step 2.
Is the action complete within ten seconds?
1. Turn the starter switch to ACC position and then off.
2. Close the door and then open it.
NOTE: This step must be performed within ten seconds after step
3.
Is the action complete?
The control unit makes lock/unlock response twice as many the
number of registered ID code with interval of two seconds. (In case
of no registered code, the response is made ten times.)
Is the response complete? 1
2
3
4
5Go to Step 2
Go to Step 3
Go to Step 4
Go to Step 5
FinishedÑ
Finished
Finished
Finished
Ñ
ID Code Check
This procedure checks how many kinds of ID code are
registered.
Step Action Yes No
Open the driverÕs side door.
Is the action complete?
Lock the door and then unlock it three times within ten seconds
after step 1.
Is the action complete within five seconds?
Close the door and then open it two times within ten seconds after
step 2.
Is the action complete within ten seconds? 1
2
3Go to Step 2
Go to Step 3
Go to Step 4Ñ
Finished
Finished AntiÐtheft horn, as an answer back function for the
transmitter operation, changes from available into
unavailing or from unavailing into available by this
procedure.
Answer Back (AntiÐtheft Horn Operation) Change Mode

WIRING SYSTEM 8DÐ409
Step Action Yes No
1. Lock the door and unlock it three times.
2. Close the door and then open it.
NOTE: This step must be performed within ten seconds after step
3.
Is the action complete?
Answer back mode changes.
Is this step complete?
The control unit makes lock/unlock response once with interval of
one second.
Is the response complete?
The control unit makes lock/unlock response three times with
interval of one second.
Is the response complete? 4
5
6
7Go to Step 5
Go to Step 6
Finished
FinishedFinished
Go to Step 7
Ñ
Ñ
AntiÐtheft & Keyless Entry Control
Unit/Transmitter Replacement
AntiÐtheft & Keyless Entry Control Unit
Replacement
1. Remove and install the control unit.
cRefer to AntiÐtheft & Keyless Entry Control Unit
Removal and Installation in this section.
2. Register ID code.
cRefer to ID Code Registration in this section.
3. Check that the keyless entry system works normally.
Transmitter Replacement
1. Prepare a new transmitter.
2. Register ID code.
cRefer to ID Code Registration in this section.
3. Check that the keyless entry system works normally.
Transmitter Battery Replacement
1. Remove a screw to remove the cover.
2. Remove the batteries.
3. Set the new batteries into the transmitter.
4. Install the cover to the transmitter.
5. Check that the keyless entry system works normally.

WIRING SYSTEM 8DÐ455
5-2 Oil Pressure Gauge Reading Is Too Low (Or High)
·(WHEN THE OIL PRESSURE IS MEASURED WITH THE MASTER
METER)
DOES THE OIL PRESSURE GAUGE SHOWS THE CORRECT
READING?
YES
·WHEN INSERTING AND PULLING OUT THE OIL
PRESSURE UNIT CONNECTOR E-2 OR E-12
SEVERAL TIMES, DOES THE INDICATION OF THE OIL
PRESSURE GAUGE CHANGE?
YES
CHECK FOR POSSIBLE ENGINE PROBLEM
(REFER TO ENGINE SECTION)
NO
REPAIR A POOR CONNECTION AT THE CONNECTOR
OF THE OIL PRESSURE UNIT
NO
·IS THE OIL PRESSURE UNIT NORMAL?
YES
REPLACE THE OIL
PRESSURE UNIT
NO
REPLACE THE METER
ASSEMBLY

8H±26SECURITY AND LOCKS
StepNo Ye s Action
12The control unit makes lock/unlock response once with interval of
one second.
Is the response complete?
FinishedÐ
13The control unit makes lock/unlock response three times with
interval of one second.
Is the response complete?
FinishedÐ
ID Code Check
This procedure checks how many kinds of ID code are
registered.
Step
ActionYe sNo
11. Open the driver's side door.
2. Turn the starter switch off.
Is the action complete?
Go to Step 2Ð
2Turn the starter switch to ACC position and then off three times
within five seconds after step 1.
Is the action complete within five seconds?
Go to Step 3Finished
3Close the door and then open it two times within ten seconds after
step 2.
Is the action complete within ten seconds?
Go to Step 4Finished
41. Turn the starter switch to ACC position and then off.
2. Close the door and then open it.
NOTE: This step must be performed within ten seconds after step
3.
Is the action complete?
Go to Step 5Finished
5The control unit makes lock/unlock response twice as many the
number of registered ID code with interval of two seconds. (In
case of no registered code, the response is made ten times.)
Is the response complete?
FinishedÐ
Answer Back (Anti±theft Horn
Operation) Change Mode
Anti±theft horn, as an answer back function for the
transmitter operation, chages from available into
unavailing or from unavailing into available by this
procedure.
Step
ActionYe sNo
1Open the driver's side door.
Is the action complete?
Go to Step 2Ð
2Lock the door and then unlock it three times within ten seconds
after step 1.
Is the action complete within five seconds?
Go to Step 3Finished
3Close the door and then open it two times within ten seconds after
step 2.
Is the action complete within ten seconds?
Go to Step 4Finished

SECURITY AND LOCKS8H±27
StepNo Ye s Action
41. Lock the door and unlock it three times.
2. Close the door and then open it.
NOTE: This step must be performed within ten seconds after step
3.
Is the action complete?
Go to Step 5Finished
5Answer back mode changes.
Is this step complete?
Go to Step 6Go to Step 7
6The control unit makes lock/unlock response once with interval of
one second.
Is the response complete?
FinishedÐ
7The control unit makes lock/unlock response three times with
interval of one second.
Is the response complete?
FinishedÐ
Anti±theft & Keyless Entry Control
Unit/Transmitter Replacement
Anti±theft & Keyless Entry Control Unit
Replacement
1. Remove and install the control unit.

Refer to Anti±theft & Keyless Entry Control Unit
Removal and Installation in this section.
2. Register ID code.

Refer to ID Code Registration in this section.
3. Check that the keyless entry system works normally.
Transmitter Replacement
1. Prepare a new transmitter.
2. Regiter ID code.

Refer to ID Code Registration in this section.
3. Check that the keyless entry system works normally.
Transmitter Battery Replacement
1. Remove a screw to remove the cover.
2. Remove the batteries.
3. Set the new batteries into the transmitter.
4. Install the cover to the transmitter.
5. Check that the keyless entry system works normally.