Vehicle & Technical > Range Rover

electric short on rrc

<< < (2/2)

Range Rover Blues:
Yes it does, there is a self-test for it too but I can't remember it, the same unit went on 300 Disco too.

The MFU runs the rear wash-wipe, the interior lights, the heated front and rear screens plus it has links to the headlights and alarm.

figgy:
i found this test procedure on another forum and will give a try tomorrow

 RE: multi-function unit
 
Ok, this is what I have. Good title for searching, so I'll put it on here if anyone needs it later. Kinda fun to check anyway.

Diagnostic Procedure
1. Close all doors and the tailgate.
NOTE: If the oil pressure switch goes open circuit
(engine is started) during the following procedure,
the MFU will exit the diagnostic mode immediately.
2. Press and hold the heated rear screen switch
and switch on the ignition.
3. Release the heated rear screen switch within 2
seconds and the MFU will beep to indicate that it’s in
diagnostic mode 1.
4. Press the heated rear screen switch; the MFU
will beep twice. In turn, operate each of the following
switches, heated front screen, rear fog guard lamps,
side lights, headlights, front wiper and rear wiper.
The MFU will beep twice each time a switch is oper-ated.
5. Pressing the heated rear screen again will cause
the MFU to enter diagnostic mode 2.
6. The MFU will provide outputs to the following in
order given below:
 Heated rear screen relay energised for 2 seconds
 Heated front screen energised for 2 seconds
 Courtesy lights energised for 2 seconds
 Dim dip relay energised for 2 seconds
 Rear fog guard lamp energised for 2 seconds
 Headlamp power wash energised for half a second
 Front wiper energised for half a second
 Rear wipe/wash energised for half a second
7. The MFU will then exit the diagnostic mode.

Range Rover Blues:
That's the one.  Just remember that the dim dip isn't used, the MFU is a standard Rover group part and was used on Disco, RRC and other Rover cars.

Navigation

[0] Message Index

[*] Previous page