Workshop Manuals Factory service & repair Alfa Romeo
01 General data and specifications02 Engine (Twin Spark, JTD and V6)03 Clutch04 Gearbox (manual, Selespeed and Q-System)05 Front axle06 Brakes, ABS and traction control07 Steering08 Suspension and wheels09 Heating, air conditioning and washers10 Electrical equipment11 Body12 Body panels and reinforcement13 Wiring diagrams14 Connectors and pin-outs15 Wiring harnesses16 Fault diagnosis17 Special tools
Alfa Romeo 156 Factory Service Manual (1997-2002)10 · Electrical equipment
10 · Electrical

Central module

Make
Alfa Romeo
Model
156 Factory Service Manual
Year
1997–2002
Section
Instruments › Central module
Electrical equipmentCentral module

CENTRAL MODULE

CENTRAL MODULE
  • 1, Fuel level gauge
  • 2, Reserve warning light
  • 3, Analogue clock
  • 4, Engine coolant temperature gauge
  • 5, Maximum temperature warning light

The module includes:

fuel gauge, with reserve warning light

engine coolant temperature gauge, with maximum temperature warning light

analogue clock

The fuel level is displayed by an electronic circuit inside the module, which operates the gauge and also the warning light for the reserve (about 7 litres).

The internal software 'dampens' the signal to prevent fluctuations.

When the ignition is turned on, the warning light comes on for about 4 seconds as a self-test, then goes out.

If it flashes and stays on, a fault has been detected in the connection or the level gauge.

The coolant temperature gauge is controlled directly by a sensor on the engine.

The maximum temperature warning light is controlled by a sensor on the engine with another signal, independent of the gauge.

During starting, when the ignition is turned on, the maximum temperature warning light comes on for about 4 seconds as a self-test, then goes out.

The analogue clock consists of a face with hour and minute hands. It is electronic with a quartz oscillator. It is adjusted by means of a button inside the dial.

Parts & tools for this job Staging For 1997 Alfa Romeo 156

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