Opel Frontera UBS. Service manual - part 2816

8D–464

WIRING SYSTEM

7.  Warning/Indicator Light

7-1  When The Parkng Brake Lever Is Pulled, The Indicator Light Does Not Light Up

•

•

•

DISCONNECT THE PARKING BRAKE SWITCH CONNECTOR
CONNECT THE HARNESS SIDE CONNECTOR TO THE
GROUND
WHEN THE STARTER SWITCH IS TURNED ON, DOES THE
INDICATOR LIGHT LIGHT UP?

YES

•

IS THE PARKING BRAKE SWITCH INSTALLED
TO THE CORRECT POSITION?

NO

•

DOES THE INDICATOR LIGHT HAVE A BURNED OUT
BULB, OR IS THE SOCKET POORLY CONNECTED?

YES

REPLACE THE METER
ASSEMBLY

NO

REPLACE THE BULB OR REPAIR
THE POOR CONNECTION AT THE
SOCKET

YES

•

WHEN THE PARKING BRAKE IS
OPERATED, IS THERE CONTINUITY
BETWEEN THE SWITCH CONNECTOR
1   B-27   AND GROUND?

NO

ADJUST THE INSTALLATION POSITION

NO

REPAIR OR REPLACE THE PARKING BRAKE SWITCH

WIRING SYSTEM

8D–465

7-2  Even When The Parking Brake Lever Is Released, The Indicator Light Does Not Go Off

•

IS THE PARKING BRAKE SWITCH INSTALLED TO
THE CORRECT POSITION, AND DOES IT OPERATE
NORMALLY?

YES

•

WHEN THE PARKING BRAKE SWITCH CONNECTOR
  B-27  DISCONNECTED, DOES THE INDICATOR
LIGHT GO OFF?

ADJUST THE SWITCH INSTALLATION POSITION,
OR REPAIR OR REPLACE THE SWITCH

NO

NO

•

IS THE BRAKE FLUID SUFFICIENT?

YES

•

IS THE BRAKE FLUID
SWITCH NORMAL?

NO

REPLENISH THE BRAKE
FLUID

YES

NO

REPLACE THE BRAKE
FLUID TANK

REPAIR A SHORT CIRCUIT
BETWEEN THE PARKING
BRAKE SWITCH CONNECTOR
1   B-27   AND 10   I-10   , OR
THE BRAKE FLUID SWITCH
CONNECTORS 2   C-15
AND 10   I-10   , OR VACCUM
SWITCH CONNECTOR 1  C-68
AND 10   I-10   

YES

REPLACE THE METER ASSEMBLY

IS THE VACCUM
SWITCH NORMAL?

YES

NO

REPLACE THE
VACCUM SWITCH

•

8D–466

WIRING SYSTEM

7-3  While The Engine Is Operating, The Oil Pressure Warning Light Does Not Go Off

•

IS THE ENGINE OIL PRESSURE NORMAL?

YES

•

WITH THE OIL PRESSURE SWITCH CONNECTOR
  E-1    OR    E-2    DISCONNECTED, DOES THE
WARNING LIGHT GO OFF?

YES

REFER TO THE “ENGINE” SECTION

NO

REPAIR A SHORT CIRCUIT BETWEEN 1   E-1
OR 2   E-12   AND THE METER

NO

•

WHILE THE ENGINE IS OPERATING, IS THERE
CONTINUITY BETWEEN THE OIL PRESSURE SWITCH
CONNECTOR 1   E-1   AND THE BODY GROUND?

YES

REPLACE THE METER ASSEMBLY

REPLACE THE OIL PRESSURE SWITCH

NO

7-4  Even When The Fuel Tank Is Full With Fuel, The Low Fuel Warning Light Lights Up

•

WHEN THE ALARM & RELAY CONTROL UNIT
CONNECTOR   B-7    IS DISCONNECTED,
DOES THE WARNING LIGHT GO OFF?

YES

•

IS THE FUEL TANK UNIT NORMAL?

YES

REPLACE THE METER ASSEMBLY

REPAIR A SHORT CIRCUIT BETWEEN THE ALARM
& RELAY CONTROL UNIT HARNESS SIDE
CONNECTOR 6   B-7   AND 18   I-10   (METER)

NO

REPLACE THE FUEL TANK UNIT

NO

WIRING SYSTEM

8D–467

7-5  Even When The Fuel Tank Is Empty, The Low Fuel Warning Light Does Not Light Up

•

DOES THE WARNING LIGHT HAVE A BURNED OUT
BULB, OR IS THE SOCKET POORLY CONNECTED?

•

•

DISCONNECT THE ALARM &
RELAY CONTROL UNIT
CONNECTOR   B-7
WHEN CONNECT THE
HARNESS SIDE CONNECTOR
6   B-7   WITH THE GROUND,
DOES THE WARNING LIGHT
LIGHT UP?

YES

•

IS THE FUEL TANK UNIT NORMAL?

REPLACE THE BULB, OR REPAIR A POOR
CONNECTION AT THE SOCKET

NO

REPLACE THE FUEL TANK
UNIT

NO

YES

REPLACE THE ALARM &
RELAY CONTROL UNIT

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

NO

YES