Checking / replacing the fuses

Electrical system

40001405.00-en

Checking / replacing the fuses Shut off the engine and turn the keyswitch of the electrical system to "0" before removing fuses. Replace defective fuses only by fuses with the same current rating.

In the event of an electrical function failing, check first the corresponding fuse: - Withdraw the fuse from the holder. - Check the fuse. In most cases, the molten wire of a defective fuse is visible to the naked eye (Fig. 1).

In case of doubt, check the fuse for integrity with an ohmmeter or replace right away by a new one.

Fig. 2

Location Designation

1F/1K Fuse / Relay box 1 2F/K2 Fuse / Relay box 2 F3/K3 Fuse / Relay box 3 F4/K4 Fuse / Relay box 4

Opening the fuse cover

Fig. 1 - If the fuse is defective, install a fuse with the same current rating in the holder. - If the fuse is not defective check the electric module, the connector and the cables (or have them checked).

The fuses and the relays are located on the right beside the driver's seat and are housed in 4 boxes (Fig. 2).

Fig.:3 3100594.00 To remove the fuse cover, press the cover together where indicated by the arrows (A, Fig. 3) and withdraw the cover in direction (B).

Fuse / Relay box 1F/1K

40001399.00

Fig.3... ..

Fuse/relay designation Am pere s Colour code Consumer

1F1 10 red AIC power supply 1F2 30 green EDC power supply 1F3 10 red starter switch S1 to EDC 1F4 5 beige voltmeter input (AIC) 1F5 20 yellow filter heater 1F6 10 red voltage transformer, radio, gateway 1F7 5 beige interior cab light 1F8 7,5 brown stater switch S1, starter relay K1.5 1F9 5 beige relay voltmeter 1K112, alternator, refuelling station, filling level sensor 1F10 5 beige diagnosis socket X123 1Kxx reserve

1K112

1K114

1KCC

1K20.3

relay voltmeter relay start request relay start control relay filter heater