2002 Allroad Suspension not working

[karmann]

Help needed my suspension has stopped working.
Was working fine then nothing.
Ride height adjustment light is on all the time.
ESP button does not turn the light on and off
When the ride height adjustment button are pressed it still stays in level 1

Suspect fuse or relay ??

Where are they and what number is the relay please.

Any help would be great:biglaugh:

[kid-jensen]

Can you hear the suspension pump running?

[allan_audi]

You need to do a fault code check and work from there.

[karmann]

VAG-COM Version: Release 311.2-N


Chassis Type: 4B - Audi A6 C5
Scan: 01,02,03,08,15,16,17,35,36,37,45,55,56

Address 01 -------------------------------------------------------
Controller: 4Z7 907 401 B
Component: 2.5l/4VTEDC G000AG D06
Coding: 01016
Shop #: WSC 02325
00017059 130 106EC150_1.R75783597283
1 Fault Found:
00542 - Needle lift Sensor (G80)
30-10 - Open or Short to B+ - Intermittent
Readiness: N/A

Address 02 -------------------------------------------------------
Controller: 4Z7 927 156 H
Component: AG5 01V 2.5lTDI RdW 1818
Coding: 00001
Shop #: WSC 00000
No fault code found.

Address 03 -------------------------------------------------------
Controller: 4Z7 907 389 A
Component: ABS/ESP allrad D55
Coding: 06457
Shop #: WSC 00000
1 Fault Found:
01119 - Gear Recognition Signal
35-10 - - - Intermittent

Address 08 -------------------------------------------------------
Controller: 4B0 820 043 AB
Component: A6-Klimavollautomat 0105
Note: Excessive Comm Errors

Skipping Address 15-Airbags

Address 16 -------------------------------------------------------
Controller: 4B0 907 487 H
Component: Lenkradelektronik D01
Coding: 01012
Shop #: WSC 02325
7 Faults Found:
01305 - Databus for Infotainment
37-10 - Faulty - Intermittent
01305 - Databus for Infotainment
80-10 - Single-Wire Operation - Intermittent
01305 - Databus for Infotainment
49-10 - No Communications - Intermittent
00480 - Control Module in Instruments for Infotainment CAN (J285)
27-10 - Implausible Signal - Intermittent
00480 - Control Module in Instruments for Infotainment CAN (J285)
49-10 - No Communications - Intermittent
00926 - Terminal 30
07-10 - Signal to Low - Intermittent
01304 - Radio
49-10 - No Communications - Intermittent

Address 17 -------------------------------------------------------
Controller: 4B0 920 981 J
Component: KOMBI+WEGFAHRS. VDO D10
Coding: 04460
Shop #: WSC 00001
WAUZZZ4B62N119154 AUZ7Z0B2054984
1 Fault Found:
01327 - Control Module for Parking Aid (J446)
49-10 - No Communications - Intermittent

Address 35 -------------------------------------------------------
Controller: 4B0 962 258 K
Component: Zentralverrieg.,DWA D35
Coding: 06895
Shop #: WSC 02325
6 Faults Found:
01561 - Left Rear Door
59-00 - Can't Unlock
01562 - Right Rear Door
59-10 - Can't Unlock - Intermittent
01560 - Passenger Door
60-00 - Won't Safe
01561 - Left Rear Door
61-00 - Won't De-Safe
01562 - Right Rear Door
61-10 - Won't De-Safe - Intermittent
01134 - Alarm Horn (H12)
49-00 - No Communications

Address 37 -------------------------------------------------------
Controller:
Note: Excessive Comm Errors

Address 45 -------------------------------------------------------
Controller: 4B0 951 173
Component: Innenraumueberw. D03
Coding: 00002
Shop #: WSC 02325
No fault code found.

Address 55 -------------------------------------------------------
Controller: 4Z7 907 357
Component: dynamische LWR D07
Coding: 00030
Shop #: WSC 02325
No fault code found.

Address 56 -------------------------------------------------------
Controller:
Note: Excessive Comm Errors

End -------------------------------------------------------

[bagpipingandy]

You Need to Scan control module 34 Level control for the suspension error Codes


Andy

[karmann]

From module 34


VAG-COM Version: Release 311.2-N

Control Module Part Number: 4Z7 907 553E
Component and/or Version: - 2C1A1 D040
Software Coding: 25500
Work Shop Code: WSC 09999
1 Fault Found:
65535 - Internal Control Module Memory Error
00-00 - -
Cheers

[allan_audi]

Looks like the Level Control ECU has died.

[karmann]

Do you know where it is located and cost to replace please

[allan_audi]

Not sure where it is or how much.

Did you try and clear the fault code, if that doesn't work try disonnecting the battery and reconnecting. Don't forget your radio code will need re-enetering.

[karmann]

cheers i will give it a go

[bagpipingandy]

This module sits in the boot on the LH side behind the trim in next to the Air storage tank, cannot remember if it is visible via the tools access flap or in behind it. perhaps check it is dry and no obvious damage to cables ect

[karmann]

Still comes up with the same error codes any ideas ????

[bagpipingandy]

If we step back a bit, you had a thread different to this one, where you mentioned climate control issues & suspension error lights on and you said a new fuse fixed it??, what fuse did you remove, replace? There should be 2 fuses go to the control box, you should check them both, unfortunetely I don't have my manual working right now to check there locations for you :(

clear the faults for everything, even you climate contol module 8 says excessive comm errors, i dont think they are related but a good start to clear all faults and start picking them off again, Does the VCDS 3.11 version you have clear codes?? i have no experience using this version

also to check you mention the error light in this thread (1st post) are we talking the small orange car in the rev counter with a up and down arrow?

try disconnecting the battery, worth a shot, make sure you have your radio codes 1st!!

Find the control box in the LH of the boot space and check it is not wet, The rear window washer runs along in this area and if it has came loose it will soak anything around it,when you find it check it is dry, check the large connection and check cabeling for damage and its condition.

it could be the module itself or poor bad connections, bad earth or voltage issue

regards

Andy

[allan_audi]

The Level Control error code suggests that the Level Control ECU is communicating but has failed internal memory checks.

Looks like battery reset and fault code clearing has not changed anything. If a fuse we're at fault there would be no response from the controller.

Not sure where or how, but may need to source new/used controller. I seem to remember they do fail occasionally.

[allan_audi]

I did just come across this link on the Rosstech webpage;

http://wiki.ross-tech.com/wiki/index.php/65535

It does seem to suggest a wet or damaged controller, seems strange, how can you have memory error if its not communicating!!!

[bagpipingandy]

I think it is communicating but has a memory failure error, or not booting up properly, still check the voltages, There should be 2 fuses to the controller one through term 15 and one through term 30, I agree if no power then it will be dead but If one of them is away it could cause issues, also be worth checking the cabeling & voltage at the pins to the controller

you can also run through the measuring blocks in VCDS to see what voltage is present at the level module 34 there are 2 voltage blocks, in level control 34, measuring block 1, I do not have the fuse location info right now but worth a check.

Andy

[karmann]

Got the box out part number 4z7 907 553 E called Audi and they quoted price of a small village in Wiltshire.
Box is dry cables look ok will check the voltages.
Could still be a fuse I hope so.

Could anyone be able to check my ECU for me ?

[allan_audi]

I did a quick search and one had come up on ebay 73 quid. I know its too late but gives hope and still worth searching.

It seems the revision has changed, so you should be able to fit anything E upwards.

Do a search for the part number missing the revision. ie 4Z7 907 553, make sure you search Europe too.

Try a few breakers if you can, there are a number of specialist VAG breakers. I'm sure if you search enough and persevere you will find a used one.

[karmann]

Just checked the voltage in Vag com to unit 34 group 1 it reads 11.12v at voltage 1 and 11.72v at voltage 2 so it must be the controller

[karmann]

Update the controller has been checked by Autotek Electronics and is working fine ???

Any ideas where is the Relay located ??

[allan_audi]

According to this doc;

http://www.volkspage.net/technik/ssp/ssp/SSP_243.pdf

J403 is the compressor relay (although doesn't say where it is but assume under dash), not sure why you're getting the code you're seeing, surely this would just cause the compressor to stop working.

I'll see if I can dig out schematic later on and take a look. Looks like there may be more fuses than thought.

[bagpipingandy]

I am having issues seeing the diagram with my software, apprecitate any ideas (installed adobe SVG view but still no diagrams!!?)

but anyway for suspension the following fuses are mentioned: fuse S7 (fuse in fuse box) & Fuse S110 self leveling suspension fuse (location unconfirmed) Fuse S5 (in fuse box), this is all the info i have for now, again cannot confirm the relay J403 location either.

check the 2 fuses inthe fuse box,

Andy

[karmann]

Just taken the lower dash apart found the 40 amp orange fuse and the 373 relay (on the 8 point relay carrier tucked up behind the normal relays. Swapped them over seem to be fine. I have now thought is the compressor getting power ? I have checked the multiple plugs and all seem fine. Can I check the pump works by bypassing the connectors?

[bagpipingandy]

Just taken the lower dash apart found the 40 amp orange fuse and the 373 relay (on the 8 point relay carrier tucked up behind the normal relays. Swapped them over seem to be fine. I have now thought is the compressor getting power ? I have checked the multiple plugs and all seem fine. Can I check the pump works by bypassing the connectors?

I think you need another fault code done, is the internal memory fault still there? how did the company "check" the control module?

in VCDS you can also check the operation of each item, as before you did the voltage checks in group 1 you can go to group 2,3,4,5 & 6

group 1 shows voltage 1, & 2 also terminal 50 voltage,

Group 2 shows door switch and voltage 3 (what is this voltage?)

group 3 shows the up button status to see if it works & pump relay operation

group 6 shows temp of pump and pump on or off status

go through these blocks checking the operation of each feature to see if you can narrow down any errors

post up screen shots of all groups

Andy

[karmann]

13965

13964Andy Screen shots posted.
Summary

Only change is when up button pressed it shows activated in group 3 but relay stays in OFF

In group 6 Pressure in res does not change and Pump stays OFF (even when engine running and moving)

[karmann]

13966

Error code on module 34 after having module checked and passed as working correctly

[bagpipingandy]

What happens when you clear the fault, then read the codes again, does it come back imediately? I think this is still the problem, or part of it,

I'm sure the pump will work but If working I would expect the relay to click open but from your description it is not even doing that. Are you sure the relay J403 has 12V running to it? (it will be the big 40AMP fuse that goes to the relay J403) Whats the 367 relay you checked??

The internal memory error doesn't shed much light either other than a wiring issue, voltage issue or dud module.

Other areas, check the Big multiplug under the car at the valve block, it goes to the J197 Module in the boot, check the connection and wiring there,

The photos are not very clear, If doing it again if you can press Alt & PrtScn buttons on the keyboward at the same time then paste into paint or word this takes a screen grab of the active window.

Either the J403 relay has no power or the J197 module fault is stopping it, or the wiring/power between this module is stopping the operation of the relay, check these areas.

looks like it is sagging on rear corner 1, Is the car in use? Is the battery fully charged when you are testing/trying these codes?

Andy

[bagpipingandy]

I got a wiring diagram showing all fuse and relay locations check your PM's

Andy

[hayabusa67]

Hi guys,
Any chance of a wiring diagram My 2001 Audi allroad suspension has ceased to operate. Switched on dash all dead. Chacked fuses all appear ok. Fault code says cannot communicate with module.
Thanks

[bagpipingandy]

PM me your e-mail address

[karmann]

Andy,
Cheers for them I will have a look saturday. The battery keeps going flat too. Voltage is 13.4 when running. will go flat either overnight or after a couple of days ?

[karmann]

Been offered a replacement unit with a B not an E or later last digit will it work on my 2002 ?

[bagpipingandy]

Not sure, the part list is only listing "G" & "H", so as i'm sure you are aware "B" is from an early allroad,

The SSP_243 document mentions differences from "A" to "B" but the document is too old to mention up to "E".

I don't know enough on the modules to know if there has actually been any mods to the unit, I do know that certain other modules do have to have the same letter or only certain later letters are compatible, but not all.

sorry I'm not much help on this one :(

Andy

[pdk]

Well I am not up on the technical stuff like the rest of you but must be the season for Allroad (2001) Suspension problems.
It appears when looking at the car that the suspension has collapsed on both sides at the front. Had the car transported to Cheshire German Car Specialist in Stockport (South Manchester) who could not diagnose the problem because they did not have the gauge to check if the Compressor was kicking out the right air pressure to inflate the suspension bellows (cost £500 and they don’t get enough Allroads’ in to justify purchase – fair enough).
So off it when to Audi Crewe for an Diagnostic Check (£45) who said the check only showed that the suspension was going below its lowest level and that the bellow on the Off Side Front Shock ‘might be leaking’ but that also the Compressor was noisy and slow and probably needed replacing has well.
Here goes – Cost – Including labour and VAT, £1400 for the compressor and £800 for Bellow. Cannot justify laying out that much on maybes.
Thinking about what to do next…
Cheers
PDK
Allroad 2.5 TDi 183 2001 (51)
PS. Any advice appreciated

[kid-jensen]

The price for the compressor looks about double what it should be.... but don't replace it intill you're SURE the leak(s) are fixed.

You'll have another big bill in a few months otherwise..

[bagpipingandy]

The diagnosois does sound feesable and costs are common from dealer,

however to give you some proof, some info is required to help diagnose:

when Running can the car still raise itself to level 1, 2 and higher?

has the car been sinking for long or a one off?

can you get a copy of the codes Audi found?

if it is an airbag leak the car will generally sit happy at level 3 and not sink, if you do have a leak the other side is trying to compensate hence it lowers to the ground, depends on how long it has been leaking so the compressor also may be tired due to compensating for the leak,

1st you need to work out whether it is a suspension airbag that is burst or leaking or a fault in the system elsewhere. To prove a leak if you can jack it up to level 4 (if it will let you) , so you can spray soapy water on the air suspension bag on the side you think leaking, (or both) lower and or await for bubbles forming to prove a leak, & a look at the fault codes will assist the search.

If you can work on a car DIY you can change the air bag and compressor £600 for both parts

Andy

[Kyojitsu]

I also had a long running suspension problem that was eventually solved by replacing the valve block (search 'Wonky Allroad' if you want the chapter and verse). It regulates the pressure to all four corners of the car and on mine had failed to one corner meaning the car could never quite level itself properly. It sits right next to the compressor and you can identify it easily as all the pneumatic hoses are connected to it in different colours. I mention it only because the suspension problems are not always the obvious and other owners have been stung for some very expensive repairs without the problem being solved. Like the others say, don't spend any cash until you're sure you've diagnosed it. It's also shocking how hard it is to find an expert in Allroad suspension repairs...business opportunity anyone??

[karmann]

:biglaugh::biglaugh:Just received and replaced the Faulty control unit 4z7 907 553E to a new one from Paul Loader Shrewsbury Audi.

All works just like it should plugged in Vag com reset error codes.

Off to France this Sunday yippee:::biglaugh:

[bagpipingandy]

Good glad its working properly again. How much is a new module from the dealer?


Andy

[keith.morrison]

Hi Andy

I have a similar problem with my 2001 Allroad.
VCDS Address 34 indicates that the relays and modules common to the suspension have lost power.
Would you be able to send me a copy of the wiring plans with relay and fuse IDs please?

Regards
Keith

[bagpipingandy]

no probs, Check your email.

[hayabusa67]

Hi all.
Bagpipe andy -- you mentioned above to check the detail of Address 34 control module.

In relation to my problem. I replaced the control module and still no working. None of the LED's are lit up on the switch on the dash.
However per your previous detail i completed detailed analysis within module 34
in VCDS i checked voltages in group 1 and found the voltage 1 to be 12v approx, and 2 to be zero.
group 3 works in relation to the up down buttons-- it shows active when i press the buttons. The relay stays in off mode.
group 6 the temp of the pump shows 84 degrees, but is not changing, so i presume this is the last stored result ?? no sure -- can I reset it.?? Pump is in off status

My main concern is group 1 wher the voltage 2 is at zero. -- Do you know what is voltage 2 or where can I check it.

Thanks.

[bagpipingandy]

I don't know off hand what that voltage actually is but there are 2 one for the module and one to the compressor I assume this is one of them,

check fuses: Fuse S110 (40 Amp) self leveling suspension fuse (location 23 in 8 point relay carrier) & check fuse S17 (10Amp in fuse box ref page 2 of the wiring diagram i sent you)

also check: fuse S7 (10 Amp fuse in fuse box ref page 7) & Fuse S5 (10 Amp in fuse box ref page 5),

for us to assit more I would have Loads of questions required to understand the problem fully:

What's the fault codes?

This is the same fault you previously had, is this correct?

was the switches working before you changed the module? Was the module new or 2nd hand?, correct part number? correctly coded?) is the new module still fitted to the car?

the temp at 84 is not right it could the the thermal switch but also likely something up with the module

check all wiring connectors as per the wiring diagram i previously sent you, check fuses, I think previously you removed the battery and module and it worked again, may be worth a shot

regards

Andy

[squax]

Hello, I'm a Newbie here. Normally on the forums over my way in Canada :) This thread has a wealth of knowledge. My problems are similar, no lights, not functioning suspension, BUT, randomly approx 1 per week, the machine will turn on fine and work perfectly for 1/2 hour or so, then back to total non function. I have replaced my compressor with hopes but to no avail. Could you kindly send me this diagram also? It would be mucho appreciated as maybe it's the relay causing my woes. Thanks in advance.


cheers,
Alex


I don't know off hand what that voltage actually is but there are 2 one for the module and one to the compressor I assume this is one of them,

check fuses: Fuse S110 (40 Amp) self leveling suspension fuse (location 23 in 8 point relay carrier) & check fuse S17 (10Amp in fuse box ref page 2 of the wiring diagram i sent you)

also check: fuse S7 (10 Amp fuse in fuse box ref page 7) & Fuse S5 (10 Amp in fuse box ref page 5),

for us to assit more I would have Loads of questions required to understand the problem fully:

What's the fault codes?

This is the same fault you previously had, is this correct?

was the switches working before you changed the module? Was the module new or 2nd hand?, correct part number? correctly coded?) is the new module still fitted to the car?

the temp at 84 is not right it could the the thermal switch but also likely something up with the module

check all wiring connectors as per the wiring diagram i previously sent you, check fuses, I think previously you removed the battery and module and it worked again, may be worth a shot

regards

Andy

[bagpipingandy]

HI Alex,

when you say no lights, do you have the suspension error light on in the rev counter or any green lights on al all on the level indicator on the dash?

i have sent a mail to you for you to reply so i can attach the wiring diagram :)

regards

Andy

[squax]

The mil light is on in the dash, the level indicator led's turn on when the car is turned on, pump starts and then stops right away - sometimes works for a bit. The vagcom scan shows the front level sensors are not working (see below) but I don;t want to start replacing parts until I can diagnose :) Got the diagram and will take a look today. Any help, input is mucho appreciado.

?? to get to these relays shown I assume I need to remove the under dash cover beneath the steering wheel? Any links to the procedure for this? I will take a look this morning to see if I can work my way through it without also. Thanks again.

Address 34: Level Control Labels: 4Z7-907-553.lbl
Part No: 4Z7 907 553 E
Component: - 2C1A1 D040
Coding: 25500
Shop #: WSC 23352


3 Faults Found:
00776 - Level Control System Sensor; Left Front (G78)
57-00 - Electric Circuit Failure
01769 - Sensor for Vehicle Leveling; Front Right (G289)
57-00 - Electric Circuit Failure
01771 - Control Module for Headlight Range (J431)
79-00 - Please Check Fault Codes

cheers,
Alex
HI Alex,

when you say no lights, do you have the suspension error light on in the rev counter or any green lights on al all on the level indicator on the dash?

i have sent a mail to you for you to reply so i can attach the wiring diagram :)

regards

Andy

[bagpipingandy]

If thats the codes which come back after clearing you need to look at sensors or the wiring, the sensors can be swapped to any wheel so if you wanted you could move them to the back to see if the fault moves

regards

Andy

[squax]

For about a year prior to the system not working, I was getting the front left sensor code repeatedly. As well as a turn off due to over temp, we temporarily replaced the temp sensor with an oil temp sensor reading ambient and it worked perfect until recently, when I switched the compressor, put back the orig temp sensor everything with the pump seems fine except both sensor codes, and no operation.. So after this long winded prologue, my question is: Would a double sensor fault cause the system to shut down??


Thanks in advance for the help.
Alex


If thats the codes which come back after clearing you need to look at sensors or the wiring, the sensors can be swapped to any wheel so if you wanted you could move them to the back to see if the fault moves

regards

Andy

[AllroadZero]

Hi Andy ,

I am having the same issue with my allroad c5 2.7t , 2002 model ...
I get the 65535 - Internal Control Module Memory Error also ,

I have changed the front left sensor , the headlight adjustment switch , and replaced also the air suspension ecu . It still gives the same code , just after i erase it with y VCDSLite version

I had also the auto tranny replaced , when notised the flooded floor , while being in the mechanic. Then i discovered the floor tranny modules wet , and some caples shorted ...
Could the auto TCM give error code to the air suspension ECU

I did fix the air pump , and it worked fine for some days ( pumping ) but not adjusting properly ... Now is flat down on floor ...

PLease shine your Light

VCDS-Lite
Self-Diagnosis Log
Thursday, 21 September 2017, 19:36:06:26271
Page 2
VIN Number: WAUZZZ4BX3N027899 License Plate: RE52RDU
Address 17: Instruments Labels: 4B0-920-xxx-17.LBL
Controller: 4B0 920 981 L
Component: KOMBI+WEGFAHRS. VDO D11
Coding: 04464
Shop #: WSC 19411
VCID: 2F11F620FE05
WAUZZZ4BX3N027899 AUZ7Z0B2153686
No fault code found.
-------------------------------------------------------------------------------
Address 34: Level Control Labels: 4Z7-907-553.LBL
Controller: 4Z7 907 553 Eáv
Component: - 2C1A1 D040
Coding: 25500
Shop #: WSC 00000
VCID: 9E4FBBE409AF
1 Fault Found:
65535 - Internal Control Module Memory Error
00-00 - -
-------------------------------------------------------------------------------
Address 35: Centr. Locks Labels: 4B0-962-258.LBL
Controller: 4B0 962 258 N
Component: Zentralverrieg.,DWA D38
Coding: 04830
Shop #: WSC 00062
VCID: 341BF94C1723
10 Faults Found:
01374 - Alarm triggered by Terminal 15
35-00 - -
01370 - Alarm triggered by Interior Monitoring
35-00 - -
00668 - Supply Voltage Terminal 30
07-10 - Signal too Low - Intermittent
01560 - Passenger Door
59-10 - Can't Unlock - Intermittent
01561 - Left Rear Door

[bagpipingandy]

hi,

the error
65535 - Internal Control Module Memory Error
00-00 - -

is likely the ECU however you may need to code the ECU if you have swapped it, what part number was the original ECU, the new one must match the same letter on the end,

fit the old ECU what errors codes do you get?

regards

Andy

[AllroadZero]

Hi Andy ,
I am happy your are joining in this issue , since you seem to be the enlightened with our allroad girlfriends :)
ECU and it is the same as with the new ... the 65535 code is immidiatelly coming as soon as I erase it with the VCDSlite version

I am logging in using the 31564 code , yet can not proceed to adaptation either way . Advanced options are not available on the Lite version . Soft coding says 25500 if not mistaken

I did also had an issue with the auto gearbox and the Climatronic ( not able to log into module ) ... not sure if that can affect eeither way .... Battery drains out in a day ,, replaced with a new one ,...same effect.
Check the pump if it is working by adding electricity directly to it and it does .... changed relay , but not the 30AMP aluminium fuse above relay ...

Sensors changed also and headlight adjustment module behind glovebox department also.... I hear a sound in Zenon light adjustment in the left light sometimes... and gives an error there but that can be erased ....

Not sure what else I should look for ...

Please shine your Light !!

Thank you in advance ,

Loizos

[bagpipingandy]

Ok loizos

nothing will work until we fix the internal memory fault, DO NOT Attempt the adaption it will make it worse,

the internal memory error is either either faulty Modules or this voltage issue, the system needs a good 12v to operate, hence you have lots of ecu issues.

what is draining the battery? Any thing running constantly?

best Regards

andy

[AllroadZero]

Hi Andy , you are responding faster than my car :)

Well , I am not sure what is draining out the battery .... :(

I do know thought that the floor got wet and there was an issue with the TCM , as well as on the left side under the floor the other plastic box ....

I d not see any fuses blown on the fuse panel on the side of the door , yet I do have an external batter with jump leads connected currently to the car....

IS there any specific caples i need to check according to your experience ? The ESP function does not respond either , level shows 1 and flashing and it is possible to enable the jackmode by pressing the up and down button together

Relay shows OFF ...

L

[bagpipingandy]

Is the air suspension error light on constantly or only when you enable jack mode?

If it's not on constantly then the error codes don't make sense, as the internal memory error I would expect to keep the error light on. can you get a scan with full vcds?

[AllroadZero]

It is constantly on in the dashboard ...

Pump does not work though like relay is burned ..yet i had it checked and even replaced relay

Would any other fuse cause a 65535 error code to the ecu ?

[bagpipingandy]

Ah ok

if the error light is on constantly then nothing will work, we must follow the fault code so it's either another faulty module or voltage issue,

check fuse 5,7 & 17 but it's likely the module or this battery draining issue from something else,

Does the car start and run?

Does anything else not work?

Best regards

andy

[AllroadZero]

Hi Andy , Yes the car starts and run . Please note that i have replaced engine and gearbox lately ...

Radio works , central locking work and i just noted the alarm works also ...

I am not sure if the TCM is good though since it was soaked...dried it and wait for the new one , yet would a TCM cause an error to the air suspension ecu .

I know for sure that air suspension run for at least one time it ... (after soacking ) , then changed gearbox and from level 3 went down gradually to level less than 1

The air tank seems empty also when I scan with vcds lite ... UNfortunately I do not have a full version to scan :(




BR,
L

[bagpipingandy]

How long has the error light been on for?

before engine swap?

[AllroadZero]

after gearbox change . When engine was done , it was working in a way . after when gearbox was done it started throwing errors in ...