Bought a IID tool and it picked up the faults below.. Any ideas on cost to fix or simple fixes available? The only one that I have really noticed is the drivers heated seat. Is this the expensive fix that I seen mentioned on here?

AAM-Audio Amplifier

B1A02-13 (2F) Speaker 2 circuit - General electrical failure - circuit open
( on 28-02-2019 12:35:49 at 127407 mi )
B1A01-13 (2F) Speaker 1 circuit - General electrical failure - circuit open
( on 28-02-2019 12:35:49 at 127407 mi )
DABM-Digital Audio

U3000-04 (2F) Control module - General failure information - system internal failure
( on 28-02-2019 12:36:38 at 127407 mi )
DCSM - Drivers Clim Seat

B1231-7A (2F) Right seat - Mechanical failure - fluid leak or seal failure
( on 28-02-2019 12:09:51 at 127397 mi )
PCM-Engine TDV8 4.4L

P040D-00 (2F) Exhaust gas recirculation temperature sensor A - circuit high
( on 28-02-2019 12:06:24 at 127397 mi )

Lots of faults pop in and pop out, but they are still stored, likely that the speaker ones will not reappear if you clear them.

Look for threads on the heated seat there are a few on how to look for issues in the heater modules

EGR is a known issue and a good wiki about how to fix --also a group hire for the tool needed to do it

Hope that helps Current: 2011 FFRR Vogue SE 4.4 TDV8
Previous: -
2004 FFRR Vogue 4.4 V8 with LPG
1997 P38 4.0 SE with LPG
1997 P38 4.6 Vogue with LPG

EGR one is the sensor one. On my list to do. Job for Rovertune Gone to a good home: 2011 4.4 TDV8 Vogue SE Buckingham Blue with Ivory and clear glass = "Rory"
2025MY Defender D350 90 in Silicon Silver on coils
1974 Series 3 Lightweight = "Millie"
Many, many other Landies over the years
My preferred specialist: www.glenrands.co.uk
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I've got some speaker open circuit faults on mine. Not sure which they are, but it sounds like they're all working so I haven't worried about them. 2010 4.4 TDV8 Vogue SE

Same here - the speaker faults - not got round to investigating yet... 2016 Skoda Octavia VRS Estate
<gone>2009 FF Vogue TDV8 Buckingham Blue</gone>
<gone>2015 BMW 520D SE (not my favourite car)</gone>
<gone>2009 D3 HSE Galway Green</gone>

I get the speaker faults but it sounds amazing so I doubt there is anything wrong. They clear then reappear on the IID