Opel Frontera UBS. Manual - part 693

8D–202

WIRING SYSTEM

Diagnosis

Quick Chart for Check Points

Check point

Fuse

C-3

(10A)

F-3

(15A)

Turn

signal 

SW

Hazard

SW

Flasher

unit

Turn

signal

 bulb

Cable

harness

1 Both turn signal lights and hazard 

warning lights inoperative

Trouble mode

2 Turn signal light flashes too quickly

3 Hazard warning lights inoperative

4 Turn signal lights inoperative

5 Turn signal lights on the right (or left) side

inoperative

6 Hazard warning lights on the right (or left)

side inoperative

7 Turn signal lights and hazard warning

ligths on the right (or left) side inoperative

WIRING SYSTEM

8D–203

1  Both Turn Signal Lights and Hazard Warning Lights Inoperative

2  Turn Signal Light Flashes Too Quickly

REINSTALL OR REPLACE THE BULB, REPAIR AN OPEN
CIRCUIT IN THE CIRCUIT, OR CHECK THE GROUND
CONNECTION

•

IS THE HAZARD WARNING SW NORMAL?

YES

NO

REPAIR OR REPLACE THE SW

•

•

•

REMOVE THE FLASHER UNIT
TURN THE STARTER SW ON
IS THE BATTERY VOLTAGE APPLIED BETWEEN
1    B-53    AND THE GROUND?

YES 

NO

REPAIR A POOR CONNECTION AT THE
CONNECTORS OR AN OPEN CIRCUIT
BETWEEN 7     I-11     AND 1     B-53

•

IS    B-19     GROUNDED SECURELY?

YES

NO

GROUND IT SECURELY

•

IS THERE ANY CONTINUITY BETWEEN THE HARNESS 
SIDE CONNECTOR 3    B-53    AND THE GROUND?

YES 

NO

REPAIR A POOR CONNECTION AT THE
CONNECTORS OR AN OPEN CIRCUIT
BETWEEN 3    B-53     AND     B-19

REPLACE THE FLASHER UNIT

8D–204

WIRING SYSTEM

3  Hazard Warning Lights Inoperative

•

IS THE FUSE F-3 (15A) NORMAL?

YES

NO

REPLACE THE FUSE

•

IS THE HAZARD WARNING SW NORMAL?

YES 

NO

REPAIR OR REPLACE THE SW

•

IS THE BATTERY VOLTAGE APPLIED BETWEEN THE 
SW HARNESS SIDE CONNECTOR 2      I-11
AND GROUND?

YES

NO

REPAIR A POOR CONNECTION AT THE
CONNECTORS OR AN OPEN CIRCUIT
BETWEEN FUSE F-3 (15A) AND 2    I-11

REPAIR A POOR CONNECTION AT THE CONNECTORS
OR AN OPEN CIRCUIT BETWEEN 2     B-53     AND
5     I-11

WIRING SYSTEM

8D–205

4  Turn Signal Lights Inoperative

•

IS FUSE C-3 (10A) NORMAL?

YES

•

•

•

DISCONNECT THE CONNECTOR OF THE HAZARD
WARNING SWITCH
TURN THE STARTER SWITCH ON.
IS THE BATTERY VOLTAGE APPLIED BETWEEN THE
HAZARD WARNING SWITCH HARNESS SIDE CONNECTOR
8   I-11   AND GROUND?

REPLACE THE FUSE

NO

YES

•

WITH THE HAZARD WARNING SWITCH TURNED OFF, IS
THERE ANY CONTINUITY BETWEEN THE SWITCH 
CONNECTORS 7   I-11   AND 8   I-11  ?

REPAIR A POOR CONNECTION AT THE CONNECTORS
OR AN OPEN CIRCUIT BETWEEN THE FUSE C-3 (10A) 
AND 8   I-11  .

NO

YES

REPAIR OR REPLACE THE SWITCH

NO

•

•

DISCONNECT THE TURN SIGNAL SWITCH CONNECTOR
IS THERE ANY CONTINUITY BETWEEN THE SWITCH 
CONNECTORS 3   B-12  AND 4   B-12   (WHEN TURNING TO 
THE LEFT), AND BETWEEN 3   B-12  AND 5   B-12   (WHEN 
TURNING TO THE RIGHT)?

YES

REPAIR A POOR CONNECTION AT THE CONNECTORS OR AN
OPEN CIRCUIT BETWEEN THE HARNESS SIDE CONNECTORS
2   B-53   AND 3   B-12  .

REPAIR OR REPLACE THE SWITCH.

NO