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Suspension won't raise
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sankeytrailer
 


Member Since: 23 May 2010
Location: suffolk
Posts: 25

United Kingdom 2006 Discovery 3 TDV6 XS Manual Buckingham BlueDiscovery 3
Suspension won't raise

Hi all,
My D3 suspension is refusing to raise. The compressor is silent but if I run an independent 12v supply direct to it, it runs but car still won't rise. Have tested the relay and all associated fuses.
Fault codes are:- B1B02-28 low frequency coil - general signal failure. B1C57-14 passive start ignition relay coil circuit - general electrical failure. C1A36-01 exhaust valve - general electrical failure.
Am I right in saying that the Exhaust valve is part of the compressor assembly ?
Anyone got any ideas on what to test or look for ?
TIA.
  
Post #235323215th Nov 2023 8:27 pm
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loanrangie
 


Member Since: 18 Jun 2017
Location: Melbourne
Posts: 592

Australia 2008 Discovery 3 TDV6 SE Auto Stornoway GreyDiscovery 3

yep your up for a new exhaust valve, may as well service compressor at the same time.
  
Post #235325016th Nov 2023 12:37 am
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Sidestick
 


Member Since: 22 Apr 2012
Location: Rome
Posts: 2286

Italy 2008 Discovery 3 TDV6 HSE Auto Java BlackDiscovery 3

from memory, the exhaust valve is commanded from the pilot exhaust valve which get pressure from the silica bottle and is commanded via a solenoid. Usually if silica are aged they become like sand clogging air valves pilot exhaust included.
I will start checking silica bottle Idea
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Post #235327016th Nov 2023 9:15 am
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