Hi all hopefully somone can help me I'm having problems with my suspension got a fault code c1a04-21 front left height sensor iv replaced the sensor with a genuine sensor and the fault still comes up it's a 2012 rangerover vogue l322 I got the suspension to go up to normal mode went for a drive and it went down on me and it keeps saying dynamic suspension fault

Not answering your question, but if you can get the car up to normal height then pull the 20A main suspenison fuse from the rear fuse panel then it won't be able to lower.

What's the full text of the fault message from whatever code reader is being used to read the codes?

I have it says c1ao4-21 left front height sensor

did you replace with the correct sensor, the 2012 have adaptive and use all 6 pins and the earlier ones only use 3 of the 6 2011 L322 Autobography - a lot of bells and some of the whistles...owner with no idea!

Yes I replaced it with 2 new ones and still get the same fault code

I seem to recall it’s possible to fit the height sensors upside down without it being obvious - may be worth double checking depending on who fitted them. Jonathan

2007 Defender 90 XS Hardtop

As said it's easy to fit them the wrong way. Also the wiring is poorly protected ( typical of the whole car) so it may be this is the fault and not the actual sensor. 2012 TDV8 Vogue (L322)

As JayGee said the wiring is a weak point, IIRC they sell a part lead with a new plug and tails which will need fitting...  Pete
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2014 L405 Autobiography SDV8 4.4 Loire Blue Ebony interior
2011 L322 Vogue SE 4.4 TDV8 Baltic Blue. Parchment over Navy Interior. Sold
2012 L322 Autobiography 5.0 Supercharged Ipanema Sand, Jet Interior. Sold
2002 L322 Vogue 4.4 V8 Epson Green, Ivory over Aspen Interior (Fatty Offroader) Sold
-Click for Project Fatty off roader-

Hi all just had a look at the voltage at the top of the dynamic strut tops on the front both read 0.88 volts
Then I have done a ride level control module diagnostics interface
And the following readings

Left front corner height -103
Left front height sensor voltage 4.68 v
Right front corner height -99
Right front height sensor voltage 0.47 v
Left rear corner height-43
Left rear height sensor voltage 1.58
Right rear corner height-53
Right rear height sensor voltage 3.12
Pressure 306 kpa
Pressure sensor voltage 0.81
Motor temperature 20 c
Compressor temperature 18c

What do you all think to this

Right front voltage looks unusual but check the voltages at access height and off road height so you can confirm they are all changing and in the same direction. Does your diagnostic tool have a suspension calibration function like the GAP IID tool? 2012 TDV8 Vogue (L322)

Hi I have done the calibration but the car wont go up on the suspension keep getting dynamic suspension fault on the display and left front level sensor fault on code reader

will it go to access height? 2012 TDV8 Vogue (L322)

It dont seem to want to go up at all

Access height is down 2012 TDV8 Vogue (L322)

Just checked my height sensor voltages and the front right also seems to have a low value compared to the rest so this may just be a quirk of the system as the actual heights are within 10mm of each other all round.
 2012 TDV8 Vogue (L322)