Opel Frontera UBS. Manual - part 2735

8D–140

WIRING SYSTEM

REPAIR OR REPLACE THE LIGHTING SW

1-10.   Passing Lights Inoperative

•

DISCONNECT THE DIMMER•PASSING SW CONNECTOR

YES

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

REPAIR OR REPLACE THE SWITCH

NO

•

WITH THE SWITCH 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   ?

1-9.   Headlights Come On With The Lighting SW At The Clearance Light Position

WIRING SYSTEM

8D–141

2-1.   Both Headlights Inoperative

•

IS THE LIGHTING RELAY NORMAL?

YES

 REPLACE THE RELAY

NO

•

IS   B-19   GROUNDED SECURELY?

YES

NO

GROUND IT SECURELY

•

IS THE DIODE NORMAL ?

YES

NO

REPLACE THE DIODE

•

IS THE DIMMER RELAY NORMAL?

YES

NO

REPLACE THE RELAY

•
•

DISCONNECT THE LIGHTING SW CONNECTOR

YES

NO

•
•

REMOVE THE LIGHTING SW

YES

NO

REPAIR A POOR CONNECTION AT THE CONNECTORS
OR AN OPEN CIRCUIT BETWEEN THE FUSIBLE LINK
 FL-1 (80A) AND 1   B-12

REPAIR OR REPLACE THE LIGHTING SW

REPAIR A POOR CONNECTION AT THE CONNECTORS OR
AN OPEN CIRCUIT BETWEEN THE LIGHTING SW HARNESS SIDE 
CONNECTOR 7    B-12    AND   B-19

IS THE BATTERY VOLTAGE APPLIED BETWEEN THE 
HARNESS SIDE CONNECTOR 1   B-12   AND GROUND?

IS THERE CONTINUITY BETWEEN 1   B-12   AND  7   B-12   WHEN
SETTING THE LIGHTING SW AT THE HEADLIGHT POSITION?

8D–142

WIRING SYSTEM

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

•

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

YES

REPLACE THE BULB

NO

•

IS 7   C-39   (OR 5   C-39   ) GROUNDED SECURELY? (RH)
IS 4   C-39   (OR 7   C-16   ) GROUNDED SECURELY? (LH)

YES

NO

GROUND IT SECURELY

REPAIR AN OPEN CIRCUIT BETWEEN
3   C-32   AND 7   C-39   (OR 5   C-39  ) (RH)
3   C-21   AND 4   C-39   (OR 7   C-16  ) (LH)

•

IS THE DIMMER RELAY NORMAL?

YES

REPAIR A POOR CONNECTION AT THE CONNECTORS OR
AN OPEN CIRCUIT BETWEEN 2     X-3      AND FUSE F-6 (10A)

NO

REPLACE THE RELAY

2-3.   Both Headlights In Low-Beam Inoperative

WIRING SYSTEM

8D–143

2-4.   Headlight Low-Beam On The Left (Or Right) Side Inoperative

2-5.   Both Headlights In High-Beam Inoperative

•

IS THE HEADLIGHT BULB NORMAL?

YES

NO

REPLACE THE BULB

•

IS THE FUSE F-6 (10A) (OR F-7 (10A)) NORMAL?

YES

REPAIR A POOR CONNECTION AT THE CONNECTORS OR
AN OPEN CIRCUIT BETWEEN FUSE F-6 (10A) AND 1    C-21
(OR FUSE F-7 (10A) AND 1    C-32     )

NO

REPLACE THE FUSE

•

IS THE DIMMER RELAY NORMAL?

YES

NO

REPLACE THE RELAY

•

•

DISCONNECT THE DIMMER·PASING SW CONNECTOR
IS THERE ANY CONTINUITY BETWEEN THE SWITCH SIDE
CONNECTOR 15    B-12    AND 16    B-12    WHEN THE 
SWITCH IS AT HIGH-BEAM POSITION?

YES

NO

REPAIR OR REPLACE THE SWITCH

•

IS THE BATTERY VOLTAGE APPLIED BETWEEN THE
HARNESS SIDE CONNECTOR 15    B-12    AND GROUND
WHEN THE SWITCH IS AT HIGH-BEAM POSITION?

YES

NO

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

REPAIR A POOR CONNECTION AT THE CONNECTOR OR AN
OPEN CIRCUIT BETWEEN 3     X-3     AND FUSE F-4 (10A)