Opel Frontera UBS. Manual - part 679

8D–146

WIRING SYSTEM

2-6.   Headlight High-Beam On The Left (Or Right) Side Inoperative

2-7.   Headlight Beam Does Not Change

•

IS THE CONTINUITY IN THE DIMMER·PASSING
SW NORMAL ?

YES

REPAIR OR REPLACE THE SWITCH

NO

•

IS    B-19    GROUNDED SECURELY?

YES

NO

GROUND IT SECURELY

REPAIR A POOR CONNECTION AT THE CONNECTORS OR
AN OPEN CIRCUIT BETWEEN 5   X-3   AND 15   B-12

•

IS THE DIMMER RELAY NORMAL?

YES

NO

REPAIR AN OPEN CIRCUIT BETWEEN 16   B-12   AND
  B-19

REPLACE THE RELAY

•

IS THERE CONTINUITY BETWEEN 16   B-12   AND
B-19    ?

YES

NO

•

IS THE HEADLIGHT BULB NORMAL?

YES

NO

REPLACE THE BULB

•

IS THE FUSE F-4 (10A) (OR F-5 (10A)) NORMAL?

YES

REPAIR A POOR CONNECTION AT THE CONNECTORS OR
AN OPEN CIRCUIT BETWEEN
(LH) FUSE F-4 (10A) AND 2   C-21
(RH) FUSE F-5 (10A) AND 2   C-32

NO

REPLACE THE FUSE

WIRING SYSTEM

8D–147

2-8.   Headlights Remain On When The Lighting SW Is Turned Off

2-9.   Headlights Come On When The Lighting SW At The Clearance Light Position

•

IS THE LIGHTING RELAY NORMAL?

YES

 REPLACE THE RELAY

NO

•
•

DISCONNECT THE LIGHTING SW CONNECTOR

YES

NO

REPAIR OR REPLACE THE LIGHTING SW

REPAIR A SHORT CIRCUIT BETWEEN 5   X-1
AND 1   B-12   

IS THE CONTINUITY BETWEEN THE SWITCH CONNECTOR 
TERMINALS 1  B-12   AND 7  B-12   NORMAL?

REPAIR OR REPLACE THE LIGHTING SW

2-10.   Passing Lights Inoperative

•
•

DISCONNECT THE DIMMER·PASSING SW CONNECTOR

YES

NO

REPAIR OR REPLACE THE  SWITCH

REPAIR A POOR CONNECTION AT THE CONNECTORS OR 
AN OPEN CIRCUIT BETWEEN 4   H-12   AND 14   B-12   

WITH THE AT PASSING POSITION, IS THERE CONTINUITY 
BETWEEN THE SWITCH CONNECTOR TERMINALS 14  B-12   
AND 16  B-12 , AND 15  B-12   AND 16  B-12  ?

8D–148

WIRING SYSTEM

3-1.   Both FRT Fog Lights Inoperative (While The Clearance Light Is On)

•

IS 5  C-16   (OR 6   C-16  ) GROUNDED SECURELY?

YES

GROUND IT SECURELY

NO

•

•

REMOVE THE FRT FOG LIGHT SWITCH
IS THE CONTINUITY IN THE SWITCH NORMAL?

YES

REPAIR OR REPLACE THE SWITCH

NO

WITH THE LIGHTING SWITCH AT CLEARANCE LIGHT POSITION,
IS THE BATTERY VOLTAGE APPLIED BETWEEN 4   I-5     AND
THE GROUND?

YES

REPAIR A POOR CONNECTION AT THE CONNECTORS 
OR AN OPEN CIRCUIT BETWEEN 4  X-9   (OR FUSE F-12)
AND 4   I-5

NO

REMOVE THE FRT FOG LIGHT RELAY
IS THE RELAY NORMAL?

•

•

YES

REPAIR OR REPLACE THE RELAY

NO

REINSTALL THE FRT FOG LIGHT SWITCH
WITH THE LIGHTING SWITCH AT CLEARANCE LIGHT
POSITION AND FRT FOG LIGHT SWITCH AT ON POSITION, IS 
THE BATTERY VOLTAGE APPLIED BETWEEN I   X-23    AND THE 
GROUND?

•

•

YES

REPAIR A POOR CONNECTION AT THE CONNCETORS
OR AN OPEN CIRCUIT BETWEEN 5   I-5   AND 1   X-23

NO

IS THERE CONTINUITY BETWEEN 3  X-23   AND THE GROUND?

•

•

YES

NO

REPAIR A POOR CONNECTION AT THE CONNECTORS 
OR AN OPEN CIRCUIT BETWEEN 3   X-23   AND 4   C-39

REPAIR A POOR CONNECTION AT THE CONNECTORS OR AN
OPEN CIRCUIT BETWEEN 4   X-23   AND 13  H-42   (OR 4   H-41 )

•

IS THE FUSE F-8 (20A OR 15A) NORMAL?

YES

REPLACE THE FUSE

NO

WIRING SYSTEM

8D–149

3-2.   FRT Fog Light On The Left (Or Right) Side Inoperative

(While The Clearance Light Is ON)

•

IS THE BULB NORMAL ?

YES

REPLACE THE BULB

NO

•

IS THERE CONTINUITY BETWEEN 13  H-42  (4  H-41  ) 
AND 1  C-24  (OR 1  C-29  )?

YES

REPAIR A POOR CONNECTION AT THE CONNECTORS
OR AN OPEN CIRCUIT BETWEEN 13  H-42  (4   H-41  ) 
AND 1  C-24  (OR 1  C-29  )

NO

REPAIR A POOR CONNECTION AT THE CONNECTORS
OR AN OPEN CIRCUIT BETWEEN 2   C-24   (2   C-29  )
AND 5   C-16   (OR 6   C-16   )