Opel Frontera UE. Manual - part 1660

8D–70

WIRING SYSTEM

Circuit Diagram–2

D08R100105

SECTION

8D–71

WIRING SYSTEM

Parts Location

D08RY00820

Legend

(1) Relay & Fuse Box (X–5, X–9)
(2) C–36
(3) H–13, H–14
(4) Relay & Fuse Box (X–21)
(5) I–5
(6) I–9
(7) Lighting Switch
(8) I–32 (Combination Switch)
(9) B–8

(10) C–16

(11) H–31

(12) C–22
(13) Fog Light – LH
(14) C–21
(15) Head Light – LH
(16) C–10
(17) C–17
(18) Fog Light – RH
(19) Head Light – RH

SECTION

8D–72

WIRING SYSTEM

Diagnosis

Both Headlights Inoperative

Step

Action

Value(s)

Yes

No

1

Check the ground terminal B–8.

Is B–8 grounded securely?

—

Go to Step 2

Ground it

securely

2

Disconnect the combination switch connector I–32.

Is there continuity between switch side connector I–32
terminals 9 and 2 with the switch turned to headlight
position?

—

Go to Step 2 

Replace the

switch

3

Check continuity of dimmer-passing switch.

Is there continuity between switch side connector I–32
terminal 5 and 4 with the switch turned to low position,
and terminal 1 and 4 with the switch turned to high
position?

—

Go to Step 3 

Replace the

switch

4

Check continuity between the lighting switch and the
ground B–8.

Is there continuity between harness side connector
I–32 terminal 2 and the ground?

—

Go to Step 5

Repair an

open circuit

5

Remove the lighting relay from the relay and fuse box.

Is the battery voltage applied between harness side
connector X–9 terminal 1 and the ground, X–9 terminal
3 and the ground?

Approx. 12V

Go to Step 6

Repair an

open circuit

between

battery and

the lighting

relay

6

Check continuity between the lighting relay and the
lighting switch.

Is there continuity between harness side connector
X–9 terminal 5 and I–32 terminal 9?

—

Go to Step 7

Repair an

open circuit

7

Check continuity between the lighting relay and fuse
F–8 or F–9.

Is there continuity between harness side connector
X–9 terminal 2 and fuse F–8 or F–9?

—

Go to Step 8

Repair an

open circuit

8

Check continuity between the dimmer-passing switch
and the ground.

Is there continuity between switch side connector I–32
terminal 4 and the ground B–8?

—

Replace the

lighting relay

Repair an

open circuit

SECTION

8D–73

WIRING SYSTEM

Headlight On The Left (or Right) Side Inoperative

Step

Action

Value(s)

Yes

No

1

Is the fuse F–8 or F–9  normal?

—

Go to Step 2

Replace the

fuse

2

Remove the headlight bulb on the left or right side.

Is the bulb normal?

—

Go to Step 3

Replace the

bulb

3

1. Reinstall the bulb.
2. Turn the lighting switch to headlight position.

Is the battery voltage applied between harness side
connector C–21 terminal 3 and the ground or C–10
terminal 3 and the ground?

Approx. 12V

Reconnect

the headlight

connector

securely

Repair an

open circuit

between the

fuse and

headlight

Headlights In Low–Beam Inoperative

Step

Action

Value(s)

Yes

No

1

Disconnect the combination switch connector I–32.

Is there continuity between switch side connector I–32
terminal 5 and 4 with the switch at low-beam position?

—

Go to Step 2

Repair or

replace the

switch

2

Repair an open circuit between  connector H-13
terminal 12 and  connector I-32 terminal 5.

Is the action complete?

—

Verify repair

—

Headlight In High–Beam Inoperative

Step

Action

Value(s)

Yes

No

1

Disconnect the combination switch connector I–32.

Is there continuity between switch side connector I–32
terminal 1 and 4 with the switch at high-beam position?

—

Go to Step 2

Repair or

replace the

switch

2

Repair an open circuit between connector H–13
terminal 8 and connector I–32 terminal 1.

Is the action complete?

—

Verify repair

—

Headlights Remain On When Lighting Switch Turned Off

Step

Action

Value(s)

Yes

No

1

1. Turn the lighting switch to off position.
2. Disconnect the combination switch connector I–32.

Do the headlights still remain on?

—

Go to Step 3

Go to Step 2

2

Repair or replace the lighting switch.

NOTE: There should be no continuity between switch
side connector I–32 terminal 9 and 2.

Is the action complete?

—

Go to Step 1

—

3

Remove the lighting relay.

Is there continuity between the relay side connector
X–9 terminal 1 and 2?

—

Replace the

relay

Go to Step 4

4

Repair short circuit between the lighting relay and the
lighting switch.

Is the action complete?

—

Verity repair

—

SECTION