BMW 3 ELECTICAL SYSTEM Reparaturanleitung PDF herunterladen (Seite 16)

On the 3 series (E90) the Junction Box (JB) plays a

central role in the distribution of power to the various

components installed in the vehicle. Based on the

equipment level installed in a vehicle the JB may be

“configured” differently. For us vehicles only one vari-

ant will be available.

Contained in the Junction Box is a:

• Distribution box/fuse carrier

• Electronic control module

Distribution Box

Depending on the equipment level installed in the vehicle, the configuration of the PC

board installed in the distribution box will vary. Different relays and/or resistors can be

soldered to the board depending on the systems installed on the vehicle.

Integrated into the Junction Box is a PC board which contains soldered on relays for:

• Wiper stage 2

• Horn

• Terminal 30g_f

• Terminal 15

Note: The PC board is not serviceable

Junction Box

E90 Voltage Supply & Bus Systems

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BMW 3 ELECTICAL SYSTEM Reparaturanleitung Seite 16