E1020 Ground

Description

The 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.

Description of operation

Note

The car earth points are subdivided according to the wiring to which they are connected, as follows:

battery negative wiring C1 C10 C

crossmember wiring C11

front wiring C10 A C10 B

engine wiring C40 B C40 C

dashboard wiring C20 A

rear wiring C20B C30 C31

negative rear window wiring: C32

Air Bag wiring C50

ABS wiring C12

ce

front wiring C41

O

engine wiring C40

bdN

engine wiring C40 A

f

coils and injectors wiring C40

Wiring diagram

Components

Component location