lights OPEL FRONTERA 1998 User Guide

6E–176
4JX1–TC ENGINE DRIVEABILITY AND EMISSIONS
Symptom Diagnosis
Preliminary Checks
Before using this section, perform the “On–Board
Diagnostic (OBD) System Check” and verify all of the
following items:
The powertrain control module (ECM) and
malfunction indicator lamp (MIL) (CHECK ENGINE
lamp) are operating correctly.
There are no DTC(s) stored.
Tech–2 data is within normal operating range. Refer
to
Typical Scan Data Values.
Verify the customer complaint and locate the correct
symptom in the table of contents. Perform the
procedure included in the symptom chart.
Visual/Physical Check
Several of the symptom procedures call for a careful
visual/physical check. This can lead to correcting a
problem without further checks and can save valuable
time.
This check should include the following items:
ECM grounds for cleanliness, tightness and proper
location.
Vacuum hoses for splits, kinks, and proper
connections, as shown on the “Vehicle Emission
Control Information” label. Check thoroughly for any
type of leak or restriction.
Air intake ducts for collapsed or damaged areas.
Injector wires for cracking, hardness, and carbon
tracking.
Wiring for proper connections, pinches and cuts.
Intermittents
IMPORTANT:An intermittent problem may or may not
turn on the malfunction indicator lamp (MIL) or store a
DTC. DO NOT use the Diagnostic Trouble Code (DTC)
charts for intermittent problems. The fault must be
present to locate the problem.
Most intermittent problems are caused by faulty electrical
connections or wiring. Perform a careful visual/physical
check for the following conditions:
Poor mating of the connector halves or a terminal not
fully seated in the connector (backed out).
Improperly formed or damaged terminal.
All connector terminals in the problem circuit should
be carefully checked for proper contact tension.
Poor terminal–to–wire connection. This requires
removing the terminal from the connector body to
check.
Road test the vehicle with a Digital Multimeter
(5-8840-0285-0) connected to a suspected circuit. An
abnormal voltage when the malfunction occurs is a good
indication that there is a fault in the circuit being
monitored.
Use a scan tool to help detect intermittent conditions. The
scan tools have several features that can be used to
locate an intermittent condition. Use the following feature
to find intermittent faults:
Using a Tech–2 “Freeze Frame” buffer or “Failure
Records” buffer can aid in locating an intermittent
condition. Review and record the information in the
freeze frame or failure record associated with the
intermittent DTC being diagnosed. The vehicle can
be driven within the conditions that were present
when the DTC originally set.
To check for loss of diagnostic code memory, disconnect
the MAP sensor and idle the engine until the MIL (CHECK
ENGINE lamp) comes on. DTC P0107 should be stored
and kept in memory when the ignition is turned “OFF.” If
not, the ECM is faulty. When this test is completed, make
sure that you clear the DTC P0107 from memory.
An intermittent MIL (CHECK ENGINE lamp) with no
stored DTC may be caused by the following:
MIL (CHECK ENGINE lamp) wire to ECM shorted to
ground.
Poor ECM grounds. Refer to the ECM wiring
diagrams.
Check for improper installation of electrical options such
as lights, cellular phones, etc.
Check for an open diode across the A/C compressor
clutch and check for other open diodes (refer to wiring
diagrams in
Electrical Diagnosis).
If problem has not been found, refer to
ECM Connector
Symptom
tables.

7A1–10
TRANSMISSION CONTROL SYSTEM (4L30–E)
Functions of Input / Output Components
ComponentsFunction
Speed sensor
(fixed to transmission
(T/M))Senses rotation of output shaft and feeds the data to Powertrain Control Module
(PCM).
Throttle position sensor
(TPS)
(fixed to engine)Senses the extent of throttle valve opening and the speed of the throttle valve
lever motion to open the valve. Feeds the data to PCM.
I
N
Brake Switch (SW)
(fixed to brake pedal)Senses whether the driver has pressed the brake pedal or not and feeds the
information to PCM.
N-
P
U
Kickdown SW
(fixed to accelerator pedal)Senses whether the driver has pushed the accelerator pedal fully or not, and
feeds the information to PCM.
U
TMode SW (fixed to T/M)Senses the select lever position, and feeds the information to PCM.

S
I
Power drive SW
(fixed to front console)Senses whether the driver has selected the power mode, and feeds the informa-
tion to PCM.
I
G-T/M oil temp. sensorSenses the T/M oil temperature and feeds the data to PCM
N
A
L
Engine coolant tempera-
ture sensorSenses the engine coolant temperature, and feeds the data to PCM.
LEngine speed signalFeeds the signals monitoring engine speed to PCM from crank angle sensor.
Air conditioning informationSenses whether the air conditioner has been switched on or not, and feeds the
information to PCM.
Winter switch (fixed to front
console)Senses whether the driver has selected the winter mode, and feeds the informa-
tion to PCM.
Cruise controller * (Over-
drive OFF signal)Downshift takes place when Overdrive OFF signal is received from auto cruise
control unit.
S
Shift solenoid A, BSelects shift point and gear position suited to the vehicle running condition on
the basis of PCM output.
O
S
O-
L
Band apply solenoidControls oil flow suited to the vehicle running condition on the basis of PCM out-
put.
O
U
T-
P
E-
N
O
Torque Converter
Clutch solenoidControls clutch engagement/disengagement suited to the vehicle running condi-
tion on the basis of PCM output.
P
U
T

O
I
DForce motor
(Pressure regulator
valve)Adjusts the oil pump delivery pressure to line pressure suited to the vehicle run-
ning condition on the basis of PCM output.

S
I
Power drive mode lampInforms the driver whether the vehicle is in power mode or not.
I
G-Winter drive mode lampInforms the driver whether the vehicle is in winter mode or not.G
N
A
L
T/M monitor lamp
(“CHECK TRANS”)Informs the driver of failure in the system.
LATF warning lampLights when ATF oil temperature rises.
ABS signal *When the select lever is at “Reverse” or “L” range, sends a signal to the ABS
controller as one of the ABS control conditions.
* If equipped

7A1–22
TRANSMISSION CONTROL SYSTEM (4L30–E)
connection or loose wiring. Terminals and grounds should
always be the prime suspect. Intermittents rarely occur
inside sophisticated electronic components such as the
PCM.
Use the DTC information to understand which wires and
sensors are involved.
When an intermittent problem is encountered, check
suspect circuits for:
1. Poor terminal to wire connection.
2. Terminals not fully seated in the connector body
(backed out).
3. Improperly formed or damaged terminals.
4. Loose, dirty, or corroded ground connections:
HINT: Any time you have an intermittent in more than
one circuit, check whether the circuits share a
common ground connection.
5. Pinched or damaged wires.
6. Electro–Magnetic Interference (EMI):
HINT: Check that all wires are properly routed away
from spark plug wires, distributor wires, coil, and
generator. Also check for improperly installed
electrical options, such as lights, 2–way radios, etc.Use the F3 SNAPSHOT mode of the Tech2 to help isolate
the cause of an intermittent fault. The snapshot mode will
record information before and after the problem occurs.
Set the snapshot to “trigger” on the suspect DTC. If you
notice the reported symptom during the test drive, trigger
the snapshot manually.
After the snapshot has been triggered, command the
Tech2 to play back the flow of data recorded from each of
the various sensors. Signs of an intermittent fault in a
sensor circuit are sudden unexplainable jump in data
values out of the normal range.
Transmission And PCM Identification
The chart below contains a list of all important information
concerning rear axle ratio, Powertrain Control Module
(PCM), and transmission identification.
VEHICLE
Rr axlePCMTRANSMISSION
Ty p eEngine
Rr axle
RatioISUZU Parts No.Calibration
CodeIsuzu Part No.Model Code
Isuzu /
Trooper3.2L V64.555
8–16254–949–0
8–16254–749–0
8–16253–989–0
G208–96018–272–3FP (4X4)

WIRING SYSTEM 8D–399
1. Check to see if the battery voltage is normal.
2. Check to see if the fuse is normal.
3. Replace the anti–theft & keyless entry control unit with one reserved for test. If a trouble recurs even after replacing
the control unit, find out the cause of the trouble by referring to “System check procedure” and the following list.
ITEM MALFUNCTION POSSIBLE CAUSE DETECTING METHOD REMARKS
ANTI–THEFT
indicator light
does not flash
ANTI–THEFT
indicator light
does not turn off.
(Steadily on)
When door is
opened by pulling
up locking knob,
alarm does not
operate
Alarm does not
stop. Indicator light
does not change
to fully ON
condition, or does
not come on at
all.Burnt out indicator
light bulb possible.
Refer to “Connector
check table” in this
system.
Refer to “Connector
check table” in this
system.
Refer to “Connector
check table” in this
system.
Refer to “Connector
check table” in this
system.
Refer to “Connector
check table” in this
system.
Refer to “Connector
check table” in this
system. Defective contact of door switch,
or open circuit in door switch
wiring.
Short circuit in the detect switch.
Engine hood, doors and tailgate
are not fully closed and locked.
Defective door switch, or short
circuit in switch wiring.
Defective tamper switch, or short
circuit in wiring.
Defective lock switch, or short
circuit in wiring.
Defective engine hood switch, or
short circuit in wiring.
Defective tailgate switch, or short
circuit in wiring.
Defective control unit.
Poor contact of lock switch, or
open circuit in wiring.
Broken wire in wiring to headlight
and horn, or a blown fuse.
Defective contact of detect
switch, or damaged switch wiring.With door open, dome light and
courtesy light do not come on.
Check the control unit connector.
Check to see if doors are closed
and locked.
Dome light and courtesy light
remain lit on after closing doors.
Check the control unit connector.
Check the control unit connector.
Check the control unit connector.
Luggage room light remains lit
after closing tailgate.
Check alarm operation (See No.
46 of “System check procedure”),
possible cause is a poor contact
of lock switch of an open circuit in
wiring.
Check to see if headlights go out.
Check the control unit connector.
Check the control unit connector. A
C
D
E B

D08RW639
3.0
B/Y
0.85
R/B
0.85
G/R 0.85
R/BC-3 10A
TURN,BACKSTARTER SW
(IG1)
STARTER SW
(ST)
12
C-93
13
C-931
C-93
H-717
H-41 TAIL RELAY
(4)
PCM
(E12)PCM
(E7)PCM
(F2)PCM
(F3)BACK UP
LIGHTSTARTER
RELAY
(5) 1
H-531 0.5
R/B
0.75
R/B
0.5
L/W0.5
L/Y0.5
L/B
0.5
L/W0.5
L/Y0.5
L/B 0.5
L/W0.5
L/Y0.5
L/B0.5
Y/G0.75
R/L1.25
W/L 1.25
W/R
MODE
SW
M-25
5 6
8H-11M-25
A/T SHIFT INDICATOR CONTROL UNIT
2
C-93H-532M-25
6
3
C-93H-533M-25
7
H-534M-25
2
H-117M-25
3
H-1015M-254M-25
1H-1016

D08RW949
3.0
B/Y
0.85
R/B
0.85
G/R 0.85
R/BC-3 10A
TURN,BACKSTARTER SW
(IG1)
STARTER SW
(ST)
12
C-93
13
C-9313H-42
1
C-93
H-84
TAIL RELAY
(4)
PCM
(E12)PCM
(E7)PCM
(F2)PCM
(F3)BACK UP
LIGHTSTARTER
RELAY
(6)
H-531 0.85
R/B
0.75
R/B
0.5
L/W0.5
L/Y0.5
L/B
0.5
L/W0.5
L/Y0.5
L/B 0.5
L/W0.5
L/Y0.5
L/B0.5
Y/G0.75
R/L1.25
W/R 1.25
W/L
MODE
SW
M-25
5 6
8H-11M-25
A/T SHIFT INDICATOR CONTROL UNIT
2
C-93H-532M-25
6
3
C-93H-533M-25
7
H-534M-25
2
H-117M-25
3
H-1016M-251M-25
4H-1015

METER AND GAUGE8E–1
METER AND GAUGE
CONTENTS
Service Precaution 8E–1. . . . . . . . . . . . . . . . . . . . . .
General Description 8E–1. . . . . . . . . . . . . . . . . . . . .
Meter Assembly 8E–2. . . . . . . . . . . . . . . . . . . . . . . . .
General Description 8E–2. . . . . . . . . . . . . . . . . . . . .
Layout for Meters/Gauges, Warning Lights,
Indicator Lights and Illumination Lights 8E–2. . .
Table for Meter/Gauge Connector Terminal
Connections 8E–8. . . . . . . . . . . . . . . . . . . . . . . . . .
Removal 8E–14. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8E–14. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Warning Light Bulb, Indicator Light Bulb,
Illumination Light Bulb, A/T Indicator
Light Bulb 8E–14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removal 8E–14. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8E–14. . . . . . . . . . . . . . . . . . . . . . . . . . . . Vehicle Speed Sensor 8E–15. . . . . . . . . . . . . . . . . . .
Removal 8E–15. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8E–15. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuel Tank Unit 8E–15. . . . . . . . . . . . . . . . . . . . . . . . . .
Removal 8E–15. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8E–15. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Multi Meter 8E–16. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removal 8E–16. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8E–16. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ambient Sensor 8E–16. . . . . . . . . . . . . . . . . . . . . . . . .
Removal 8E–16. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8E–16. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Main Data and Specifications 8E–17. . . . . . . . . . . . .
Service Precaution
WARNING: IF SO EQUIPPED WITH A
SUPPLEMENTAL RESTRAINT SYSTEM (SRS),
REFER TO THE SRS COMPONENT AND WIRING
LOCATION VIEW IN ORDER TO DETERMINE
WHETHER YOU ARE PERFORMING SERVICE ON OR
NEAR THE SRS COMPONENTS OR THE SRS
WIRING. WHEN YOU ARE PERFORMING SERVICE
ON OR NEAR THE SRS COMPONENTS OR THE SRS
WIRING, REFER TO THE SRS SERVICE
INFORMATION. FAILURE TO FOLLOW WARNINGS
COULD RESULT IN POSSIBLE AIR BAG
DEPLOYMENT, PERSONAL INJURY, OR
OTHERWISE UNNEEDED SRS SYSTEM REPAIRS.
CAUTION: Always use the correct fastener in the
proper location. When you replace a fastener, use
ONLY the exact part number for that application.
ISUZU will call out those fasteners that require a
replacement after removal. ISUZU will also call out
the fasteners that require thread lockers or thread
sealant. UNLESS OTHERWISE SPECIFIED, do not
use supplemental coatings (Paints, greases, or other
corrosion inhibitors) on threaded fasteners or
fastener joint interfaces. Generally, such coatings
adversely affect the fastener torque and the joint
clamping force, and may damage the fastener. When
you install fasteners, use the correct tightening
sequence and specifications. Following these
instructions can help you avoid damage to parts and
systems.
General Description
The circuit consists of the starter switch, meter assembly,
vehicle speed sensor, transmission switch, lighting
switch, turn signal switch, thermo unit, oil pressure unit,
Powertrain Control Module (PCM), fuel tank unit, 4WD
switch, oil pressure switch, parking brake switch, brake
fluid switch, seat belt switch, illumination controller, multi
meter and ambient sensor.

8E–2METER AND GAUGE
Meter Assembly
General Description
The meter assembly has the speedometer, tachometer,
engine coolant temperature gauge, fuel gauge and
warning/indicator lights. In addition, the meter assembly
containing TOD (Torque on Demand) has the TOD
indicator light, or the meter assembly not containing TOD
has the voltmeter and oil pressure gauge instead of the
TOD indicator.
Layout for Meters/Gauges, Warning Lights, Indicator Lights and Illumination
Lights
Meter Assembly–Gasoline W/O TOD (Front View)
825RW207
Legend
(1) Voltmeter & Engine Coolant Temperature
Gauge
(2) Tachometer
(3) Warning Light Lens
(4) Speedometer(5) Oil Pressure Gauge & Fuel Gauge
(6) Warning Light Lens
(7) Reset Knob
(8) A/T Shift Indicator
(9) Warning Light Lens

8H–22SECURITY AND LOCKS
Anti-theft System
General Description
The circuit consists of the starter switch, anti-theft &
keyless entry control unit, anti-theft horn, front door and
tailgate key switch (detect and tamper switch), door lock
(& power window) switch, door lock actuator for each
door, engine hood switch, clutch start switch (M/T),
ANTI-THEFT indicator light and mode switch (A/T).
The system operates as follows: After locking the starter
switch and removing the starter key (this sets the alarm),
if the door is unlocked in any way other than with the
proper key, the headlights start flashing, the horn sounds,
and the starter circuit is disabled. (However, the engine
hood and all the doors must be locked and closed.)
Once the system has been placed in the warning or alarm
condition, it can be released only when the starter switch
is shifted from “OFF” to “ACC” by the starter key, or when
the lock of the front door or the tailgate is released (to
activate the detect switch) by the starter key.
Anti-theft & Keyless Entry Control
Unit Removal
1. Disconnect the battery ground cable.
2. Remove the front console assembly.
Refer to the Instrument Panel Assembly in Body
Structure section.
3. Remove the lower cluster assembly.
Refer to the Instrument Panel Assembly in Body
Structure section.
4. Disconnect the connector(2).
5. Remove four screws to remove the anti-theft &
keyless entry control unit with bracket(1).
825RW029
6. Remove two nuts from the anti-theft & keyless entry
control unit with bracket(3) to remove the anti-theft &
keyless entry controller(4).
825RW028
Anti-theft & Keyless Entry Control
Unit Installation
To install, follow the removal steps in the reverse order.
Anti-theft Indicator Removal
1. Disconnect the battery ground cable.
2. Remove the front console assembly(1).
Refer to the Instrument Panel Assembly in Body
Structure section.
3. Remove the lower cluster assembly(2).
Refer to the Instrument Panel Assembly in Body
Structure section.
4. Remove the instrument panel driver lower cover
assembly(3).
Refer to the Instrument Panel Assembly in Body
Structure section.
821RW024

10A–1
CRUISE CONTROL SYSTEM
CONTROL SYSTEM
CRUISE CONTROL SYSTEM
CONTENTS
Service Precaution 10A–1. . . . . . . . . . . . . . . . . . . . . .
General Description 10A–1. . . . . . . . . . . . . . . . . . . . .
Diagnosis 10A–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brake Switch 10A–2. . . . . . . . . . . . . . . . . . . . . . . . . . .
Removal 10A–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 10A–2. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Adjustment 10A–3. . . . . . . . . . . . . . . . . . . . . . . . . . .
Clutch Switch 10A–3. . . . . . . . . . . . . . . . . . . . . . . . . . .
Removal and Installation 10A–3. . . . . . . . . . . . . . .
Adjustment 10A–3. . . . . . . . . . . . . . . . . . . . . . . . . . .
Starter Switch 10A–4. . . . . . . . . . . . . . . . . . . . . . . . . . .
Removal 10A–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 10A–4. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cruise Control Main Switch 10A–5. . . . . . . . . . . . . . . Removal 10A–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 10A–5. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cruise Control Switch (Combination Switch) 10A–5
Removal and Installation 10A–5. . . . . . . . . . . . . . .
Cruise Control Unit 10A–6. . . . . . . . . . . . . . . . . . . . . .
Removal 10A–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 10A–6. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cruise Actuator 10A–7. . . . . . . . . . . . . . . . . . . . . . . . .
Actuator Cable Diagram (LHD) 10A–7. . . . . . . . . .
Actuator Cable Diagram (RHD) 10A–7. . . . . . . . . .
Removal 10A–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 10A–8. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mode Switch 10A–8. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removal and Installation 10A–8. . . . . . . . . . . . . . .
Service Precaution
WARNING: IF SO EQUIPPED WITH A
SUPPLEMENTAL RESTRAINT SYSTEM (SRS),
REFER TO THE SRS COMPONENT AND WIRING
LOCATION VIEW IN ORDER TO DETERMINE
WHETHER YOU ARE PERFORMING SERVICE ON OR
NEAR THE SRS COMPONENTS OR THE SRS
WIRING. WHEN YOU ARE PERFORMING SERVICE
ON OR NEAR THE SRS COMPONENTS OR THE SRS
WIRING, REFER TO THE SRS SERVICE
INFORMATION. FAILURE TO FOLLOW WARNINGS
COULD RESULT IN POSSIBLE AIR BAG
DEPLOYMENT, PERSONAL INJURY, OR
OTHERWISE UNNEEDED SRS SYSTEM REPAIRS.
CAUTION: Always use the correct fastener in the
proper location. When you replace a fastener, use
ONLY the exact part number for that application.
ISUZU will call out those fasteners that require a
replacement after removal. ISUZU will also call out
the fasteners that require thread lockers or thread
sealant. UNLESS OTHERWISE SPECIFIED, do not
use supplemental coatings (Paints, greases, or other
corrosion inhibitors) on threaded fasteners or
fastener joint interfaces. Generally, such coatings
adversely affect the fastener torque and the joint
clamping force, and may damage the fastener. When
you install fasteners, use the correct tightening
sequence and specifications. Following these
instructions can help you avoid damage to parts and
systems.
General Description
The cruise control keeps the vehicle running at a fixed
speed until a signal canceling this fixed speed is received .
When the main switch “AUTO CRUISE” is turned on with
the vehicle in the running mode, the battery voltage is
applied to the control unit. When a signal from the control
switch is input to the control unit while the vehicle is in this
state, the cruise control actuator is activated to operate
the system. Also, while the system is operating, the
“AUTO CRUISE” indicator light in the meter assembly
lights up.
1. SET/COAST Switch Function
1.Set Function: When the SET/COAST switch is
pressed and released with the main switch on, the
speed at which the vehicle is running at that moment
is stored in the memory, and the vehicle automatically
runs at the stored speed.
2.Coast-down Function: When the SET/COAST
switch is kept on while the vehicle in running, the
vehicle decelerates during that time. The speed at
which vehicle is running when the control switch is
turned off is stored in the memory, and the vehicle
automatically returns to the stored speed.
3.Tap-down Function: When the SET/COAST switch
is turned on and off instantaneously while the vehicle
is running, the vehicle decelerates a mile for each
on/off operation. The vehicle speed at which the
vehicle was running when the SET/COAST was
turned off last is stored in the memory, and the vehicle
automatically returns to this stored speed.