Opel Frontera UBS. Service manual — part 2814
![](/vehicle/goneen/quin/cui/pia.png)
8D–456
WIRING SYSTEM
4-2 Gauge Reading Is Too Low (Or High)
•
DOES THE THERMOSTAT OPERATE NORMALLY?
YES
•
•
TURN THE STARTER SWITCH ON
WHEN INSERTING AND PULLING OUT THE ENGINE
COOLANT TEMPERATURE UNIT CONNECTOR 1 E-19 OR
1 E-23 SEVERAL TIMES, DOES THE INDICATION OF THE
ECT GAUGE VARY?
YES
REPLACE THE THERMOSTAT
NO
REPAIR A POOR CONNECTION AT THE CONNECTOR
OF THE ENGINE COOLANT TEMPERATURE UNIT
NO
•
IS THE ENGINE COOLANT TEMPERATURE UNIT NORMAL?
YES
REPLACE THE ENGINE
COOLANT TEMPERATURE
UNIT
NO
REPLACE THE METER
ASSEMBLY
![](/vehicle/goneen/quin/cui/llers.png)
WIRING SYSTEM
8D–457
4-3 Needle Overshoots (Goes Up To The “H” Range)
•
•
DISCONNECT THE CONNECTOR OF THE ENGINE
COOLANT TEMPERATURE UNIT
WHEN THE STARTER SW IS TURNED ON, DOES THE
POINTER REACH TO THE “H” RANGE?
YES
•
IS THERE A SHORT CIRCUIT BETWEEN THE
ECT UNIT AND THE ECT GAUGE?
YES
REPLACE THE ENGINE COOLANT
TEMPERATURE UNIT
NO
REPAIR THE SHORT CIRCUIT
NO
REPLACE THE METER ASSEMBLY
![](/vehicle/goneen/quin/cui/yow.png)
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
![](/vehicle/goneen/quin/cui/uelde.png)
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
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