Opel Frontera UBS. Manual - part 720

8D–310

WIRING SYSTEM

2  Windshield Wiper Does Not Operate At “INT” Position

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•

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DISCONNECT THE CONNECTORS OF THE WINDSHIELD WIPER &
WASHER SWITCH
SET THE SWITCH AT THE “INT” POSITION
IS THERE CONTINUITY BETWEEN THE SWITCH CONNECTOR
TERMINALS 3  B-52   AND 2   B-52  ?

YES

NO

•

•

•

DISCONNECT THE CONNECTOR OF THE ALARM & RELAY
CONTROL UNIT
SET THE WINDSHIELD WIPER & WASHER SWITCH AT THE "INT"
POSITION AND TURN THE STARTER SWITCH ON
IS THE BATTERY VOLTAGE APPLIED BETWEEN 20  B-7   AND
THE GROUND?

REPAIR A POOR CONNECTION AT THE CONNECTORS
OR AN OPEN CIRCUIT BETWEEN 14  B-52   AND   B-19

YES

NO

•

IS   B-19   GROUNDED SECURELY?

REPAIR OR REPLACE THE WINDSHIELD WIPER &
WASHER SWITCH

YES

NO

GROUND IT SECURELY

•

IS THERE CONTINUITY BETWEEN THE WINDSHIELD WIPER &
WASHER SWITCH HARNESS SIDE CONNECTOR TERMINALS 
14  B-52   AND THE GROUND?

YES

NO

REPAIR A POOR CONNECTION AT THE CONNECTORS
OR AN OPEN CIRCUIT BETWEEN 2  B-52   AND 20  B-7

•

IS THERE CONTINUITY BETWEEN 14  B-6   AND 8   B-52  ?

YES

NO

REPAIR A POOR CONNECTION AT THE CONNECTORS
OR AN OPEN CIRCUIT BETWEEN 14  B-6    AND
8   B-52 

REPLACE THE ALARM & RELAY CONTROL UNIT

WIRING SYSTEM

8D–311

3  Intermittent Interval Does Not Change

•

•

DISCONNECT THE CONNECTOR OF THE WINDSHIELD
WIPER & WASHER SWITCH
WHEN THE INTERMITTENT KNOB IS TURNED, DOES THE
RESISTANCE VALUE BETWEEN THE SWITCH CONNECTOR
TERMINALS 8   B-52   AND 14   B-52   VARY BETWEEN 0

Ω

- 2 K

Ω

?

YES

NO

REPAIR OR REPLACE THE SWITCH

IS THERE SHORT CIRCUIT BETWEEN 14  B-6   AND 8   B-52   ?

•

YES

NO

REPAIR A SHORT CIRCUIT

REPLACE THE ALARM & RELAY
CONTROL UNIT

4  Windshield Wiper Does Not Operate At “LO” Position

•

•

•

DISCONNECT THE CONNECTORS OF THE WINDSHIELD WIPER &
WASHER SWITCH
TURN THE STARTER SWITCH ON
SHORT CIRCUIT THE WINDSHIELD WIPER & WASHER SWITCH HAR-
NESS SIDE CONNECTOR TERMINALS 3   B-52   - 5   B-52    AND
CHECK TO SEE IF THE WINDSHIELD WIPER MOTOR ROTATES AT A
LOW SPEED.

REPAIR OR REPLACE THE WIPER & WASHER SWITCH

8D–312

WIRING SYSTEM

5  Windshield Wiper Does Not Operate At “HI” Position

•

•

DISCONNECT THE CONNECTOR OF THE WINDSHIELD WIPER &
WASHER SWITCH
WITH THE SWITCH SET AT “HI” POSITION, IS THERE
CONTINUITY BETWEEN THE SWITCH CONNECTOR TERMINALS
3   B-52   AND  4   B-52   ?

YES

NO

•

•

•

DISCONNECT THE CONNECTOR OF THE WINDSHIELD WIPER
MOTOR
CONNECT THE MOTOR CONNECTOR 1   C-38    TO THE BATTERY
(+) TERMINAL, AND 3   C-38   TO THE BATTERY (–) TERMINAL
DOES THE MOTOR ROTATE AT A HIGH SPEED?

REPAIR OR REPLACE THE WINDSHIELD WIPER &
WASHER SWITCH

YES

NO

REPAIR A POOR CONNECTION AT THE CONNECTORS OR AN
OPEN CIRCUIT BETWEEN 4   B-52   AND 1  C-38

REPAIR OR REPLACE THE WINDSHIELD WIPER
MOTOR

WIRING SYSTEM

8D–313

6  Auto-Stop Function of The Windshield Wiper Motor Does Not Operate

•

•

DISCONNECT THE CONNECTOR OF THE WINDSHIELD WIPER &
WASHER SWITCH
WITH THE SWITCH SET AT “OFF” POSITION, IS THERE
CONTINUITY BETWEEN THE SWITCH CONNECTOR TERMI-
NALS 5   B-52   AND 6  B-52   ?

YES

NO

•

•

•

DISCONNECT THE CONNECTOR OF THE WINDSHIELD WIPER
MOTOR 
CONNECT THE MOTOR CONNECTOR 2   C-38   TO THE BATTERY
(+) TERMINAL AND 3   C-38   TO THE (–) TERMINAL, AND THEN
CHANGE THE CONNECTION OF THE BATTERY (+) TERMINAL
TO THE CONNECTOR 6   C-38   WHILE THE MOTOR ROTATING
AT A LOW SPEED
WHEN CONNECTING THE CONNECTOR TERMINALS 2  C-38   AND
5    C-38   IN THIS CONDITION, DOES THE MOTOR STOP AT AUTO-
STOP POSITION?

REPAIR OR REPLACE THE WINDSHIELD WIPER &
WASHER SWITCH

REPLACE THE ALARM & RELAY CONTROL UNIT

REPAIR A POOR CONNECTION AT THE CONNECTORS
OR AN OPEN CIRCUIT BETWEEN 5   C-38   AND
12  B-7

YES

NO

YES

NO

•

•

TURN THE STARTER SWITCH ON
IS THERE ANY BATTERY VOLTAGE APPLIED BETWEEN THE 
WINDSHIELD WIPER MOTOR HARNESS SIDE CONNECTOR 
TERMINAL 6   C-38  AND GROUND?

REPAIR OR REPLACE THE WINDSHIELD WIPER MOTOR

YES

NO

•

•

DISCONNECT THE CONNECTOR OF THE ALARM & RELAY
CONTROL UNIT
IS THERE CONTINUITY BETWEEN THE HARNESS SIDE
CONNECTOR 12  B-7   AND THE WINDSHIELD WIPER MOTOR
HARNESS SIDE CONNECTOR 5   C-38   ?

REPAIR A POOR CONNECTION AT THE CONNECTORS
OR AN OPEN CIRCUIT BETWEEN THE FUSE C-5 (15A)
AND 6   C-38