Member Since: 14 Dec 2012
Location: Warsash
Posts: 1
Fault codes UO421 & C1A02
Dear all. Have been reading this site for a while - its great reading. I have an issue. My disco 3 is no longer happy going around tight corners. Feel like the diff lock is stuck in. Fault codes UO421 invalid data received from ride level control module - and C1A02 rotary encoder stuck in intermediate position. Any ideas where to start?
14th Dec 2012 8:59 pm
Disco_Mikey
Member Since: 29 May 2007
Location: Dundee, Scotland
Posts: 20778
Try having the transfer box recalibrated
Recalibrates the clutches, and wipes any stored settings in the transfer box. The "Rotary Encoder" is the terrain response knob, and can be ignored for now, unless it is not working properly, or flashing up any faults on the dashMy D3 Build Thread
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