Opel Frontera UBS. Service manual — part 685

8D–170

WIRING SYSTEM

1-3 Taillight On The Left (Or Right) Side Inoperative

IS THE TAILLIGHT BULB ON THE LEFT (OR RIGHT)
SIDE NORMAL?

•

•

YES

NO

REPLACE THE BULB

WITH THE LIGHTING SWITCH AT THE CLEARANCE
LIGHT POSITION, IS THE BATTERY VOLTAGE APPLIED
BETWEEN 6 R-13 (OR 6 R-12 ) AND THE GROUND,
OR 4 F-7 (OR 4 F-8 ) AND THE GROUND?

YES

NO

REPAIR A POOR CONNECTION AT
THE CONNECTORS OR AN OPEN
CIRCUIT BETWEEN 10 H-32 AND
6 R-13 (OR 9 H-32 AND 6 R-12 ),
OR 10 H-32 AND 4 F-7 (OR 9 H-32
AND 4 F-8 )

REPAIR A POOR CONNECTION AT THE CONNECTORS
OR AN OPEN CIRCUIT BETWEEN 1 R-13 (OR 1 R-12 )
AND R-4 , OR 2 F-7 (OR 2 F-8 ) AND R-4

WIRING SYSTEM

8D–171

1-4 Both Clearance Lights Inoperative

IS FUSE F-12 (15A) NORMAL?

•

•

YES

NO

REPLACE THE FUSE

REPLACE THE RELAY

REMOVE THE CONNECTOR OF THE LIGHTING SWITCH

•

IS THERE ANY CONTINUITY BETWEEN 8 B-12 AND
7 B-12 WHEN THE SWITCH IS TURNED TO THE CLEARANCE
LIGHT OR HEADLIGHT POSITION?

YES

NO

GROUND IT SECURELY

YES

NO

YES

NO

YES

NO

REPAIR A POOR CONNECTION AT THE CONNECTORS OR
AN OPEN CIRCUIT BETWEEN 4 X-9 AND 1 H-41

•

IS THE BATTERY VOLTAGE APPLIED BETWEEN THE
HARNESS SIDE CONNECTOR 8 B-12 AND THE GROUND?

REPAIR OR REPLACE THE LIGHTING
SWITCH

REPAIR A POOR CONNECTION AT
THE CONNECTORS OR AN OPEN
CIRCUIT BETWEEN 3 X-9 AND
8 B-12

•

IS THE TAIL RELAY NORMAL?

IS 1 C-16 GROUNDED SECURELY?

•

8D–172

WIRING SYSTEM

1-5 Clearance Light On The Left (Or Right) Side Inoperative

•

IS THE CLEARANCE LIGHT BULB ON THE LEFT
(OR RIGHT) SIDE NORMAL?

YES

NO

REPLACE THE BULB

•

IS THERE ANY CONTINUITY BETWEEN THE HARNESS SIDE
CONNECTOR 1 H-41 AND 2 C-22 (OR 2 C-31 )?

YES

NO

REPAIR A POOR CONNECTION AT THE CONNECTORS OR AN
OPEN CIRCUIT BETWEEN 1 C-22 (OR 1 C-31 ) AND
1 C-16

REPAIR A POOR CONNECTION AT THE
CONNECTORS OR AN OPEN CIRCUIT IN
THE CIRCUIT

1-6 License Plate Light Inoperative

(RHD-1)

•

DO THE BOTH TAILLIGHTS LIGHT UP WHEN THE LIGHTING
SWITCH IS AT THE CLEARANCE LIGHT POSITION?

YES

NO

GROUND R-4 SECURELY

•

IS THE LICENSE PLATE LIGHT BULB NORMAL?

YES

NO

REPAIR A POOR CONNECTION AT THE CONNECTORS OR AN
OPEN CIRCUIT BETWEEN 2 G-8 AND R-4

REPAIR A POOR CONNECTION AT THE
CONNECTORS OR AN OPEN CIRCUIT IN
THE CIRCUIT

YES

NO

REPLACE THE BULB

•

IS THERE ANY CONTINUITY BETWEEN THE HARNESS
SIDE CONNECTOR 1 G-8 AND 1 H-39 ?

WIRING SYSTEM

8D–173

(RHD-2)

YES

NO

REPAIR A POOR CONNECTION AT
THE CONNECTORS OR AN OPEN
CIRCUIT BETWEEN FUSE F-12 (15A)
AND 8 B-12

REPAIR A POOR CONNECTION AT THE CONNECTORS
OR AN OPEN CIRCUIT BETWEEN 4 X-9 AND 4 H-15 ,
OR 2 F-9 (2 F-10 ) AND R-4

IS FUSE F-12 (15A) NORMAL?

•

IS THE TAIL RELAY NORMAL?

•

•

YES

NO

REPLACE THE FUSE

IS R-4 GROUNDED SECURELY?

•

YES

NO

YES

NO

REPLACE THE RELAY

REMOVE THE CONNECTOR OF THE LIGHTING SWITCH

•

IS THERE ANY CONTINUITY BETWEEN 8 B-12 AND
7 B-12 WHEN THE SWITCH IS TURNED TO THE CLEARANCE
LIGHT OR HEADLIGHT POSITION?

YES

NO

REPAIR OR REPLACE THE LIGHTING
SWITCH

IS THE BATTERY VOLTAGE APPLIED BETWEEN
THE HARNESS SIDE CONNECTOR 8 B-12 AND
THE GROUND?

GROUND IT SECURELY