Opel Frontera UBS. Service manual — part 743
8D–402
WIRING SYSTEM
STEP
OPERATION
ITEM TO BE CHECKED
ITEM OF
REMARKS
MALFUNCTION
With key set at
unlock position,
check to see if
alarm stops. (All
doors are unlocked.)
All doors are
locked.
Activate alarm
device.
Only tailgate is
unlocked.
With key set at
unlock position,
check to see if
alarm stops.
Activate alarm
device.
Activate alarm
device.
Check to see if alarm stops.
Check to see if indicator light
flashes.
Check to see if dome light and
courtesy light come on.
Check to see if indicator light is
steadily on.
Check to see if indicator light
turns off in about 10 seconds.
Check to see if alarm operates.
Check to see if alarm stops.
Check to see if indicator light
flashes.
Check to see if luggage room
light on.
Check to see if indicator light
changes over from flashing into
lighting condition.
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
come on.
Check to see if indicator light
goes off after about 10 seconds.
Insert key into key cylinder of left
front door and turn it to unlock
direction.
Open left rear door.
With one person in vehicle, close
left rear door.
Lock left front door with locking
knob.
Wait about 10 seconds.
Unlock tailgate from inside with
locking knob.
Open tailgate, insert key into key
cylinder of tailgate and turn it in
lock direction.
Leave tailgate open.
Close tailgate
Insert key into tailgate key
cylinder and turn it in lock
direction.
Wait about 10 seconds.
Unlock tailgate with key.
Lock tailgate with key.
Wait about 10 seconds.
E
A
B
C
D
H
A
G
B
C
F
B
C
17
18
19
20
21
22
23
24
25
26
27
28
29
30
WIRING SYSTEM
8D–403
STEP
OPERATION
ITEM TO BE CHECKED
ITEM OF
REMARKS
MALFUNCTION
Only right rear door
is unlocked.
With key at unlock
position, check to
see if alarm stops.
(With all doors
unlocked.)
Activate alarm
device.
Only right front door
is unlocked.
With key at unlock
position, check to
see if alarm stops.
(With all doors
unlocked.)
Activate alarm
device.
Check to see if alarm operates.
Check to see if alarm stops.
Check to see if indicator light
flashes.
Check to see if dome light and
courtesy light come on.
Check to see if indicator light
stays on steadily.
Check to see if indicator light
goes off after about 10 seconds.
Check to see if alarm operates.
Check to see if alarm stops.
Check to see if indicator light
flashes.
Check to see if dome light and
courtesy light come on.
Check to see if indicator light
stays on steadily.
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
stays on steadily.
Unlock right rear door with
locking knob.
Insert key into key cylinder of
right front door and turn it in
unlock direction.
Open right rear door.
Close right rear door.
Insert key into key cylinder of
right front door and turn it in lock
direction.
Wait about 10 seconds.
Unlock right front door with
locking knob.
Insert key into key cylinder of
right front door and turn it in
unlock direction.
Open right front door.
Close right front door.
Lock right front door with key.
Wait about 10 seconds.
Unlock right front door with key.
Lock right front door with key.
D
E
A
B
C
D
E
A
B
C
F
B
31
32
33
34
35
36
37
38
39
40
41
42
43
44
8D–404
WIRING SYSTEM
STEP
OPERATION
ITEM TO BE CHECKED
ITEM 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
CONNECTION
CHECK
OPERATION
CIRCUIT
NO.
ITEM
CONDITION
1
FRT door switch–LH, RH
Continuity
Open door
Continuity
Close door
No continuity
2
RR door switch–LH, RH
Continuity
Open 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
Continuity
Open tailgate
Continuity
Close tailgate
No continuity
8
Anti–theft horn
Voltage
–
Approx. 12V
10
Battery
Voltage
–
Approx. 12V
11
Door switch
Continuity
Unlock with locking knob
Continuity
Lock with locking knob
No continuity
12
Engine hood switch
Continuity
Open engine hood
Continuity
Close engine hood
No continuity
13
Detect switch
Continuity
Unlock 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
Voltage
Mode switch “P” or “N”
Approx. 12V
Clutch pedal depressed
Approx. 12V
Connector Check Table
Check the anti–theft & keyless entry control unit harness side connector B–20 by using a circuit tester.
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