Opel Frontera UBS. Manual - part 1695

8D–458

WIRING SYSTEM

5.  Oil Pressure Gauge

5-1  Needle Does Not Move

•

•

DISCONNECT THE CONNECTOR OF THE OIL PRESSURE UNIT
WHEN THE STARTER SW IS TURNED ON, DOES THE NEEDLE
REMAIN STILL?

YES

•

IS THERE A SHORT CIRCUIT BETWEEN THE OIL
PRESSURE UNIT AND THE OIL PRESSURE GAUGE?

YES

REPLACE THE OIL PRESSURE UNIT

NO

NO

REPLACE THE METER ASSEMBLY

REPAIR THE SHORT CIRCUIT

WIRING SYSTEM

8D–459

5-2  Oil Pressure Gauge Reading Is Too Low (Or High)

•

(WHEN THE OIL PRESSURE IS MEASURED WITH THE MASTER
METER)
DOES THE OIL PRESSURE GAUGE SHOWS THE CORRECT
READING?

YES

•

WHEN INSERTING AND PULLING OUT THE OIL
PRESSURE UNIT CONNECTOR    E-2     OR   E-12
SEVERAL TIMES, DOES THE INDICATION OF THE OIL
PRESSURE GAUGE CHANGE?

YES

CHECK FOR POSSIBLE ENGINE PROBLEM
(REFER TO ENGINE SECTION)

NO

REPAIR A POOR CONNECTION AT THE CONNECTOR
OF THE OIL PRESSURE UNIT

NO

•

IS THE OIL PRESSURE UNIT NORMAL?

YES

REPLACE THE OIL
PRESSURE UNIT

NO

REPLACE THE METER
ASSEMBLY

8D–460

WIRING SYSTEM

5-3  Needle Overshoots (Goes Up To 15 (x100 kPa))

• IS THE CONNECTOR OF THE OIL PRESSURE UNIT   E-2

OR   E-12    CONNECTED SECURELY?

 YES

• IS THE OIL PRESSURE UNIT NORMAL?

YES

YES

NO

NO

NO

• IS THERE AN OPEN CIRCUIT  IN THE CIRCUIT 
  BETWEEN THE OIL PRESSURE UNIT AND THE 
  OIL PRESSURE GAUGE?

RECONNECT THE CONNECTOR 

REPLACE THE OIL PRESSURE UNIT

REPLACE THE METER ASSEMBLY

REPAIR A POOR CONNECTION AT THE CONNECTORS 
OR AN OPEN CIRCUIT IN THE CIRCUIT

WIRING SYSTEM

8D–461

6.  Fuel Gauge

6-1  Fuel Gauge Needle Does Not Move

•

IS THE CONNECTOR OF THE FUEL TANK UNIT   F-5
CONNECTED SECURELY?

YES

•

•

•

DISCONNECT THE CONNECTOR OF THE FUEL TANK UNIT
CONNECT A 3.4W BULB BETWEEN THE HARNESS SIDE
CONNECTOR 2   F-5   AND THE GROUND OF THE FUEL TANK
UNIT
WHEN THE STARTER SW IS TURNED ON, DOES THE FUEL
GAUGE NEEDLE FLUCTUATE AFTER ABOUT 90 SECONDS?

YES

RECONNECT THE CONNECTOR

NO

NO

•

IS THERE CONTINUTY BETWEEN THE FUEL TANK UNIT
CONNECTOR TERMINALS 2   F-5   AND 1   F-5   ?

•

IS THE CIRCUIT BETWEEN THE FUEL GAUGE AND THE FUEL
TANK UNIT NORMAL?

YES

NO

REPLACE THE FUEL TANK
UNIT

YES

REPLACE THE METER
ASSEMBLY

NO

REPAIR A POOR CONNECTION
AT THE CONNECTORS OR AN
OPEN CIRCUIT IN THE CIRCUIT

REPAIR A POOR
CONNECTION AT THE
CONNECTORS OR AN OPEN
CIRCUIT BETWEEN THE
FUEL TANK UNIT AND THE
GAUGE