Thread: D4 Air Suspension

So I made up a loop back plug thanks to Graeme's instructions.
Worked a treat.

Final report from LR.
Driver side height sensor faulty.
On replacement they notice passenger side still low.
On inspection, height sensor not working.
Further inspection found Top Control Arm bent 90 deg.
Nearly touching shocker.

I ended up driving D5 for 5 days whilst waiting on parts etc.
Expensive service with new front discs and pads, front suspension bits etc.

Very happy to be back in D4

I suspect damage was done last July playing on Big Red.
I did hit a pot hole hard at the base.
I have since found a cracked alloy wheel.

Cheers

Vtwinmad

Hi
Hi all I registered with aulro last year but I haven’t had much trouble with my D4 until recently
Ive had a recurring suspension fault code pop up. I can’t post this in the disco 3/4 section I don’t know how to
I live in gympie and the local LD guy here replaced the compressor as it showed a fault and the fault showed again so he replaced the rear valve body and it still did it so he downloaded new software as mine looks like it originally had a hitachi and previous owner had it replaced with a no name brand and now it has a AMK now the fault is coming up more often
U2000-67 (6C) motor temperature - algorithm based failure - signal incorrect after the event
C1A13-64 (AF) pressure does not decrease when venting gallery - algorithm based failure- signal plausibility failure
The first one comes up again and again after I clear the Codes with my IIDControl
regards
sean

https://www.aulro.com/afvb/members/78518.html

Hi Navy,

I have had the same code C1A13-64 for the past 8 months and haven't been able to find the issue, so will be interested to see what the outcome is.

cheers
Geoff

Originally Posted by NavyDiver

Vtwinmad

Hi
Hi all I registered with aulro last year but I haven’t had much trouble with my D4 until recently
Ive had a recurring suspension fault code pop up. I can’t post this in the disco 3/4 section I don’t know how to
I live in gympie and the local LD guy here replaced the compressor as it showed a fault and the fault showed again so he replaced the rear valve body and it still did it so he downloaded new software as mine looks like it originally had a hitachi and previous owner had it replaced with a no name brand and now it has a AMK now the fault is coming up more often
U2000-67 (6C) motor temperature - algorithm based failure - signal incorrect after the event
C1A13-64 (AF) pressure does not decrease when venting gallery - algorithm based failure- signal plausibility failure
The first one comes up again and again after I clear the Codes with my IIDControl
regards
sean

https://www.aulro.com/afvb/members/78518.html

Hi.

This is from the workshop manual.

All Greek to me but hope it helps.

Regards,
Martin

DTC
C1A13-
64

Description
Pressure Does
Not Decrease
When Venting
Gallery - Signal
plausibility failure

Possible Causes
Exhaust valve stuck
closed
Gallery pipe
blocked/damaged/crushed
Air suspension exhaust
silencer blocked/restricted

Action
Using the manufacturer approved diagnostic
system, test the operation of the exhaust
valve (vehicle ride height interface)
Check the gallery pipe for
blockages/damage/crushing
Check the air suspension exhaust silencer for
blockages/restrictions


DTC
U2000-
67


Description
Motor
Temperature -
Signal incorrect
after event

Possible Causes
NOTE: Circuit reference
MOT_TEMP_SIG /
MOT_TEMP_GND


Suspension air supply
unit temperature sensor
circuit open circuit

Suspension air supply
unit not operating when
demanded

Action
Refer to the electrical circuit diagrams and
check the suspension air supply unit
temperature sensor circuit for open circuit,
high resistance

Refer to the electrical circuit diagrams and
check the suspension air supply unit circuit
for open circuit, high resistance