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

The earths on the vehicle are divided according to the various wiring they belong to.

Radiator wiring:

• battery earch, C01

Front wiring:

• left front earth, C10
• right front earth, C11
• ABS front earth (at left corner), C12

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 wiring

• Bose system earth, C65

Wiring diagram

Components

Component location