Alfa Romeo 147 1.6 TS da 04/01 a 06/02 – EARTHS – – WIRING DIAGRAM, LOCATION COMPONENTS, OPERATIONAL DESCRIPTION – WIRING DIAGRAM, LOCATION COMPONENTS, OPERATIONAL DESCRIPTION

Wiring diagram

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Components

Component code	Name	Assembly reference
C1	Battery earth	-
C2	Battery earth on engine	-
C3	Battery earth on bodyshell	-
C10	Front left earth	-
C11	Right front earth	-
C12	ABS front earth	-
C15	Facia earth, driver's side	-
C16	Air conditioning earth	-
C30	Left rear earth	-
C31	Rear right earth	-
C32	Rearscreen earth	-
C38	Earth on centre tunnel	-
C40	Earth on engine	-
C50	Air Bag earth	-
C65	Bose system earth	-

Location of components

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Components

Component code	Name	Assembly reference
C1	Battery earth	-
C2	Battery earth on engine	-
C3	Battery earth on bodyshell	-
C10	Front left earth	-
C11	Right front earth	-
C12	ABS front earth	-
C15	Facia earth, driver's side	-
C16	Air conditioning earth	-
C30	Left rear earth	-
C31	Rear right earth	-
C32	Rearscreen earth	-
C38	Earth on centre tunnel	-
C40	Earth on engine	-
C50	Air Bag earth	-
C65	Bose system earth	-

DescriptionThe following diagram shows the various earths on the vehicle, and the circuits connected to each are indicated.It is thus easy to identify the circuits which are connected to earth from the same line; this facilitates fault finding if a problem involves more than one function: for example, the corrosion of one earth could put different circuits and several functions out of action at the same time.

Functional descriptionThe earths on the vehicle are divided according to the various wiring they belong to.Radiator wiring:battery earh, C01A Front wiring:left front earth, C10 right front earth, C11 ABS front earth (at left corner), C12 battery earth, C01B (JTD version only)Dashboard wiring:driver's dashboard earth, C15A driver's dashboard earth, C15B Air Bag system earth, C50A Rear wiring:driver's dashboard earth, C15C left rear earth, C30 right rear earth, C31 rearscreen earth. C32 earth on centre tunnel, C38 Air Bag system earth, C50B Battery negative wiring:battery earth on engine (on gearbox), C02 battery earth on bodyshell, C03 Engine wiring:earth on engine, C40A-B-C Air conditioning wiring:air conditioning unit earth (on right side of dashboard), C16 BOSE system wiringBose system earth, C65