Power and Ground Distribution: Testing and Inspection

Checking Blade Fuses:

The car's +12V power supply is fed to the various items of electrical equipment via three main fuse boards, one in the side of the dashboard by the driver's door, one in the engine bay behind the battery and a Maxi fuse holder in the engine bay behind the main fuse box.

The fuses are of blade type and, together with their connecting sockets, give rise to a lower voltage drop than earlier types. They are also more resistant to corrosion.

Blade Fuse Color Coding:

Standard size fuses Color
5 A Light brown
7.5A Dark brown
10A Red
15A Blue
20 A Yellow
25 A Transparent
30 A Green
40A Orange

Maxi size fuses
30A Green
40A Orange
60A Blue

Checking Blade Fuses
Each blade fuse has test sockets which can be used to check whether it is intact without having to remove it. If both sockets are live, the fuse is intact.

On a fuse that has been removed it is possible to see whether it has blown.