1998 OPEL FRONTERA hood open

8D–400 WIRING SYSTEM
ITEM MALFUNCTION POSSIBLE CAUSE DETECTING METHOD REMARKS
Even when door
unlocked with
key, alarm
operates.
Alarm does not
operate even with
tailgate open.
Even when
tailgate is opened
with key, alarm
does not stop.
Even when
engine hood is
opened with
remote release,
alarm does not
operate
Even when
starter switch is
turned, alarm
does not stop
Indicator light
continues
flashingRefer 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 detect
switch, or damaged switch wiring.
Door detect switch is assembled
to wrong door.
Defective contact of tailgate
switch, or defective wiring.
Defective contact of tailgate
detect switch, or damage wiring.
Damaged engine hood switch or
wiring.
Defective contact of starter
switch.
Damaged door switch, or a short
circuit in wiring.
Damaged tamper switch, or a
short circuit in wiring.Check the control unit connector.
When key is turned to lock
position, alarm stops.
When luggage room light switch
is turned on with tailgate open,
luggage room light does not
come on.
Check the control unit connector.
With starter switch turned to
“ACC” position, audio, cigarette
lighter and door mirrors (on
“ACC” circuit) do not operate.
After closing door, dome light and
courtesy light remain on.
Check the control unit connector. F
G
H
I
J
K

WIRING SYSTEM 8D–401
STEP OPERATION ITEM TO BE CHECKEDITEM OF
REMARKS
MALFUNCTION
Be sure to lock door
with locking knob.
Activate alarm
device.
All doors are
unlocked.
With key set at unlock
position, check to see
if alarm stops.
All doors are
locked.
Activate alarm
device.
Activate alarm
device.
Only left rear door
is unlocked. Check to see if engine hood,
tailgate and doors are closed and
locked.
Check to see if indicator light
remains lit off.
Check to see if indicator light
flashes.
Check to see if dome light and
courtesy light illuminate.
Check to see if indicator light
changes from flashing to steadily
on.
Check to see if indicator light
turns off in about 10 seconds.
Check to see if alarm operates
(with headlight flashing, and horn
blaring intermittently.)
Check to see if alarm stops.
Check to see if indicator light
turns on.
Check to see if indicator light
goes off after about 10 seconds.
Check to see if alarm does not
operate.
Check to see if indicator light
turns on.
Check to see if indicator light
goes off after about 10 seconds.
Check to see if alarm starts. Turn starter key to “ON” position.
Open windows fully.
Pull out starter key after turning it
back to “OFF” position.
Unlock left front door with locking
knob.
Open left front door. (And get out
of the vehicle.)
Close left front door.
Lock left front door.
Wait about 10 seconds
Unlock left front door with locking
knob.
Insert key into key cylinder of left
front door and turn it in unlock
direction.
Lock left front door.
Wait for about 10 seconds.
Unlock left front door with key.
Lock left front door with key.
Wait for about 10 seconds.
Unlock left rear door with locking
knob.K
A
B
C
D
E
B
C
F
B
C
D 1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16

8D–404 WIRING SYSTEM
STEP OPERATION ITEM TO BE CHECKEDITEM OF
REMARKS
MALFUNCTION
Activate alarm
device. Check to see if indicator light
goes off after about 10 seconds.
Check to see if alarm operates.
Check to see if alarm stops. Wait about 10 seconds.
Open engine hood with engine
hood release handle.
Insert key into starter switch and
turn it to “ACC” position.C
I
J 45
46
47
NOTE:When the connector of the anti–theft & keyless entry control unit is disconnected, the starter is inoperative.
In the checking of short wheel base model, Step Nos. 16 through 21 and Step Nos. 31 through 36 are omitted.

WIRING SYSTEM 8D–405
TERMINAL
CONNECTIONCHECK
OPERATIONCIRCUIT
NO. ITEM CONDITION
1 FRT door switch–LH, RH ContinuityOpen door Continuity
Close door No continuity
2 RR door switch–LH, RH ContinuityOpen door Continuity
Close door No continuity
3— — – –
4 Door lock key switch–LH, RH Continuity Lock with key Continuity
5 FRT door lock switch–LH, RH Continuity Lock Continuity
6 Tailgate switch ContinuityOpen tailgate Continuity
Close tailgate No continuity
8 Anti–theft horn Voltage – Approx. 12V
10 Battery Voltage – Approx. 12V
11 Door switch ContinuityUnlock with locking knob Continuity
Lock with locking knob No continuity
12 Engine hood switch ContinuityOpen engine hood Continuity
Close engine hood No continuity
13 Detect switch ContinuityUnlock with key Continuity
Lock with key No continuity
14 Door lock key switch Continuity Unlock Continuity
15 FRT door lock switch–LH, RH Continuity Unlock Continuity
16 Tamper switch Continuity – No continuity
17 Ground Continuity – Continuity
18 Starter switch Voltage Starter switch “ACC” Approx. 12V
19 Indicator light Voltage – Approx. 12V
20 Dome light Voltage Dome light “DOOR” position Approx. 12V
21 Anti-theft relay Voltage – Approx. 12V
22 Starter relay VoltageMode switch “P” or “N” Approx. 12V
Clutch pedal depressed Approx. 12V
Check the anti–theft & keyless entry control unit harness side connector B–20 by using a circuit tester.

8F–15 BODY STRUCTURE
General Description
This section includes items of front end sheet metal that
are attached by bolts, screws or clips and related
accessory components.Anti-corrosion materials have been applied to the interior
surfaces of some metal panels to provide rust resistance.
When servicing these panels, areas on which this
material has been disturbed should be properly recoated
with service-type anti-corrosion material.
Cowl Cover
Parts Location
605RW009
Legend
(1) Front Wiper Arms
(2) Cowl Cover
(3) Cowl Cover Brackets(4) Cowl Cover Stoppers
(5) Cower Cover Seals
(6) Front Window Lower Molding
Removal
1. Open the hood.
2. Support the hood.3. Remove front wiper arms.Refer to Wiper/Washer System in this section.
4. Remove cowl cover brackets.
Disconnect two screws each side.

8F–16BODY STRUCTURE
5. Remove cowl cover.
Disconnect three screws.
6. Remove cowl cover seals.
7. Remove front window lower molding.8. Remove cowl cover stoppers.
Installation
To install, follow the removal steps in reverse order.
Engine Hood
Removal
1. Open the hood.
2. Support the hood.
3. Remove windowshield washer nozzle tube.
880RS001
4. Remove hood hinge bolts (3).
Before removing the hinges from the Engine hood
(1), scribe a mark (2) showing location of the hinges
to facilitate installation in the original position.
610RS003
5. Remove engine hood.
Installation
To install, follow the removal steps in the reverse order
noting the following points:
1. Tighten the engine hood fixing bolts to the specified
torque.
To r q u e : 1 3 N
m (1.3kgꞏm/113 lb in)
2. Adjust the engine hood mounting gap with reference
to Body Dimension in this section.
3. Check and see if the engine hood lock operates
normally.

8F–20BODY STRUCTURE
Installation
To install, follow the removal steps in reverse order noting
the following points:
1. Reroute the control cable to its original position, and
check and see if the lock assembly and control lever
work normally.2. Tighten the hood lock assembly fixing bolts to the
specified torque.
Torque : 10 Nm (1.0kgꞏm/87 lb in)
Radiator Grille And Front End Lower Panel
Parts Location
603RW014
Legend
(1) Front End Lower Panel(2) Head light Wiper
(3) Radiator Grille
Removal
1. Open the hood.
2. Support the hood.
3. Remove headlight wiper.
Refer to Wiper/Washer System in this section.

8F–22BODY STRUCTURE
Front Fender Panel
Parts Location
605RW008
Legend
(1) Cowl Cover
(2) Front Mud Flap
(3) Antenna Bezel(4) Side Flasher Light
(5) Front Fender Panel
(6) Front Combination Lamp Assembly
(7) Inner Liner
Removal
1. Open the hood.
2. Support the hood.
3. Disconnect the battery ground cable.
4. Remove cowl cover.
Refer to Cowl Cover in this section.
5. Remove front combination lamp assembly.
Disconnect fixing screw and connector.6. Remove front mud flap.
Disconnect three fixing screws and four clips.
7. Remove inner liner.
8. Remove antenna bezel.
Refer to Entertainment in this section.
9. Remove side flasher light.
Refer to Lighting System in this section.