Member Since: 09 Oct 2012
Location: Cambridge
Posts: 181
Limp mode help please!
Hello all
We have a 12 D4 HSE 148,490 km that has gone into limp mode for the first time yesterday whilst out on a long drive
We’ve had a nightlong suspension issue for around 12 months that our local garage hasn’t been able to diagnose, but I think it’s to do with a ride height sensor?
When we press the suspension down button we would occasionally get an Amber suspension fault, a reset of the ignition would normally clear this, but occasionally you would get the Red warning for around 2 mk utes and then it would clear!
I’ve just looked at the current fault codes and this is what I am showing:
VIN: SALLAAAG5CA624312
L319 - Discovery 4 2012
Vehicle scanned on 17-10-2022 09:48
Using IIDTool BT V3.0 B2481
ABS-Brake Module
U0421-68 (28) Invalid data received from ride level control module - Algorithm based failure - event information
( on 06-10-2022 10:50:54 at 147508 km )
BCM-Body Control
B1B01-87 (28) Key transponder - Bus signal/message failure - missing a message
( on 06-10-2022 10:50:14 at 147508 km )
DDM-Driver Door
B1164-15 (2F) Right mirror heater output - General electrical failure - circuit short to battery or open
( on 06-10-2022 10:49:45 at 147508 km )
PDM-Passenger Door
B1163-15 (2F) Left mirror heater output - General electrical failure - circuit short to battery or open
( on 14-10-2022 17:06:51 at 148189 km )
RLM-Suspension
C1A13-64 (2C) Pressure does not decrease when venting gallery - Algorithm based failure - signal plausibility failure
( on 06-10-2022 10:50:53 at 147508 km )
SASM-Steering Angle
U0300-55 (2F) Internal control module software incompatibility - System programming failure - is not configured
( on 08-10-2022 13:05:19 at 147572 km )
I cleared the codes and then pressed the ride height adjuster and received these codes:
VIN: SALLAAAG5CA624312
L319 - Discovery 4 2012
Vehicle scanned on 17-10-2022 09:50
Using IIDTool BT V3.0 B2481
ABS-Brake Module
U0421-68 (2B) Invalid data received from ride level control module - Algorithm based failure - event information
( on 17-10-2022 09:49:56 at 148490 km )
DDM-Driver Door
B1164-15 (2F) Right mirror heater output - General electrical failure - circuit short to battery or open
( on 17-10-2022 09:49:34 at 148490 km )
PDM-Passenger Door
B1163-15 (2F) Left mirror heater output - General electrical failure - circuit short to battery or open
( on 17-10-2022 09:49:37 at 148490 km )
RLM-Suspension
C1A13-64 (AF) Pressure does not decrease when venting gallery - Algorithm based failure - signal plausibility failure
( on 17-10-2022 09:49:56 at 148490 km )
Can anyone please help??
17th Oct 2022 9:06 am
grzesiul
Member Since: 11 May 2008
Location: UK
Posts: 6404
looks like you need to replace or rebuild your compressor
G
17th Oct 2022 9:33 am
grzesiul
Member Since: 11 May 2008
Location: UK
Posts: 6404
Member Since: 09 Oct 2012
Location: Cambridge
Posts: 181
Hi G thank you for the reply. Is there anything I can check to confirm this?
What sort of a job is this to complete?
17th Oct 2022 9:36 am
r6demon
Member Since: 09 Oct 2012
Location: Cambridge
Posts: 181
Ok so I’ve checked the compressor and there is a leak from the blue pushfit. I’ve decided to rebuild the drier so dropped the compressor down to get to the drier release screw on top.
I’ve bought a drier rebuild kit from landy air on eBay so wish me luck!
I don’t seem to have a crack in the drier lid though, but I’ll replace it anyway!
17th Oct 2022 2:04 pm
grzesiul
Member Since: 11 May 2008
Location: UK
Posts: 6404
wow quick action on it?
nice
17th Oct 2022 2:07 pm
r6demon
Member Since: 09 Oct 2012
Location: Cambridge
Posts: 181
Thank you! I’ll let you know how I get on! If this doesn’t work it’s a compressor ….. eeeek!!
The compressor hums away, so hopefully we are all good!!
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