Workshop Manuals Factory service & repair Alfa Romeo
01 General information02 Specifications03 Manufacturing data and tolerances04 Tightening torques05 Fluids and lubricants06 Maintenance07 Diagnostic checks08 Engine09 Clutch10 Gearbox and differential11 Transmission (4x4)12 Axles and driveshafts13 Brakes14 Steering15 Suspension and wheels16 Heating, air conditioning and auxiliary units17 Electrical equipment18 Body fittings19 Body panels and frame20 Wiring diagrams and electrical functions21 Wiring harnesses22 Connectors and pin-outs23 Fault diagnosis24 Special tools
Alfa Romeo Brera and Spider Factory Service Manual (2005-2010)20 · Wiring diagrams and electrical functions
20 · Electrical

Earths - operational description

Make
Alfa Romeo
Model
Brera and Spider Factory Service Manual
Year
2005–2010
Section
Power supply and earths › Earths - operational description
Wiring diagrams and electrical functionsEarths - operational description

EARTHS - OPERATIONAL DESCRIPTION

FUNCTIONAL DESCRIPTION

The earths present on the vehicle, categorised according to their relationship with the various wires, are as follows.

Radiator wiring:

- battery earth, C01 A

Front wiring:

- left front earth, C10

- right front earth, C11

- ABS front earth (on left corner), C12

- earth on engine, C40

Dashboard wiring:

- passenger side facia earth, C20 A, C20 B

- Air Bag system earth, C50 A

Rear wiring:

- driver''s dashboard earth, C 15

- left rear earth, C30

- right rear earth, C31

- Air Bag system earth, C50 B

- earth for amplifier, C56

Battery negative wiring:

- battery earth on engine (on gearbox), C02

- battery earth on bodyshell, C03 A, C03 B

Engine wiring:

- earth on engine, C40 B

- earth on engine, C40, (only 3.2 V6 24v)

- compressor earth, C39 (only engine 3.2 V6 24v)

Air conditioning wiring:

- air conditioning unit earth, C16

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