Workshop Manuals Factory service & repair Alfa Romeo
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Alfa Romeo 145/146 Electrical System Diagnosis Manual, Volume 3 (1994-2001)02 · 146 electrical system diagnosis
02 · Diagnostics

General description

Make
Alfa Romeo
Model
145/146 Electrical System Diagnosis Manual, Volume 3
Year
1994–2001
Section
Fusebox › General description
146 electrical system diagnosisGeneral description

GENERAL DESCRIPTION

This section describes the complete printed circuit that makes the connections inside the fusebox G1.

In the various diagrams referring to the individual systems and circuits only the lines associated with the case under examination are shown: this chart gives a complete, overall view of the entire fusebox G1.

The fusebox houses a number of relays and other devices, shown here with the corresponding codes, and the fuses (F1,...., F24).

NOTE: not all the output pins of the box G1 are actually connected for all versions of the car: some lines therefore may be found to be redundant though they will be present on the printed circuit.

Next to the schematic drawings of the connectors a list of output signals from the different pins is given: this simplifies for instance faultfinding work on the different circuits affected. (NOTE: the letters N.C. indicate pins connected inside the fusebox but not used for the present versions of the car).

Two different fuseboxes have been used, the first one called BOX "A" for the "high" versions, i.e. fitted with a number of auxiliary accessories, and the second one known as BOX "B" for the "lower" versions: it is simpler and only contains the indispensable circuit.

Whenever necessary, all the wiring diagrams shown in this Group show the two different fuseboxes using the following symbols:

  • = fusebox "A";
  • = fusebox "B".

From chassis no.__ the above two boxes have been replaced by a new box "C" used for all versions.

  • = fusebox "C".
PIN CIRCUITS
- Supply from terminal board
Supply to Fusebox diagram showing fusebox A, B, and C connections with G56 relay

Parts & tools for this job For 1994 Alfa Romeo 145/146

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