Hi all, can someone help with diagnostics for iid codes, i get the suspension bong after driving a few klm.cade reader gives me EBV function fault received from ABS ECU, 1/40x-BD any ideas?

I think that one can be ignored.. the car doesn’t have ebv. It’s due to the fact it’s bmw electrics apparently ..I queried this with gap a while back

OK,thats one less, i also get 0x-30 air qual sensor, that i thought could be ignored.
0x32 can bus fault.
1/60 x- 52 air suspension active/inactive.
I also get on occasion right rear speed sensor open circuit, i have fitted a new sensor but still gt that error message sometimes.
Thanks for your help.

OK,thats one less, i also get 0x-30 air qual sensor, that i thought could be ignored.
0x32 can bus fault.
1/60 x- 52 air suspension active/inactive.
I also get on occasion right rear speed sensor open circuit, i have fitted a new sensor but still gt that error message sometimes.
Thanks for your help.

This: 1/60 x- 52 air suspension active/inactive is the one that needs further investigation! .
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Thanks for the offer but i am a bit far from you what can i do using ths iid tool non blutooth.

I just reread your post. I get error code1/60x-57, you say x-52 ? I will do a scan when i get home.0ps my error i did mean x-57

Ok let me start again, the fault code that i am getting is
1/60x- 57 airsuspension active/inactive.
Sorry about the garbled previous post, pleae advise what i can check for.

Can someone please help.the code i get from my iid tool 1/60x-57 is regular but there are different codes when i read the iid tool when the suspension is locked or when the fault cleares itself during the night. I cannot clear the fault (suspension active /inactive ) with my iid tool but it cleares itself over night.
In the morning the suspension can be raised and lowered no problem, although it is slow on the third time. It seems that whenthe engine heats up then the suspension locks. Whether i drive a few miles or let it run in the driveway. If i take a short run to the shop suspension is active, but when i restart to return home the suspension is locked.
Another thing i have noticed is on occasion when i switch off the engine the front sags slowly and then bounces back up to ride height. This does not happen every time, only sometimes.
Some other error codes i noted when the suspension was locked,
1/10x-32 can bus fault
1/10x-9 incorrect can message SASM steering angle
1/20x-52 ASCI lost from can
Please advise me where i can look to fix this problem. Thanks

Your vehicle's codes are quite different to later models like mine so the codes are meaningless to me. However can-bus faults can affect lots of mostly unrelated modules so a fault on one can cause unrelated faults. It is possible that faults that cannot be cleared one day will clear themselves overnight when modules go into sleep mode. Have you tried locking then unlocking to see if the faults have cleared, allowing at least 30 seconds between locking and unlocking but perhaps a little more, maybe 2 minutes? Perhaps one module is tying-up the can-bus whilst it isn't sleeping.

Sometimes strange faults are caused when a wiring harness that runs across behind the right rear seat gets pinched by the seat frame that eventually damages the insulation causing 2 or more wires to short together, so worth checking behind that seat. The steering angle sensor fault suggests that the cause is unlikely to be in a rear harness although the can-bus is there so the effect can be anywhere.

Thank you for your imput, very confusing these faults,as i said the fault and inactive suspension can appear even if the car is not running. One thing i noticed was by chance i had my drivers window open and when i switched off the engine and the front sagged i heard air escaping somewhere in the front, then it stopped and the front bounced back up? I am a retired boilermaker so there is no way i can hear the pump running whilst i am driving. so i was wondering whether i could fit a led globe that lights up when the pump runs, then i can at least see if the pump is being overworked and getting too hot. Another indication is the brake light that is normaly amber when the suspension inactive is on turns red after a while and again not always but the brakes still operate as normal, i fitted new brake pads not long ago.
Everything seems to work as normal except the suspension but i do not want to chance my luck and would prefer to know what is the cause of the faults. I appreciate any input.

Are you sure that the indicator light is a brake warning light and not a suspension warning light? The suspension warning light can be either colour and usually amber when the reservoir takes too long to get up to pressure but red when a target height can't be attained.

I suspect that your IIDtool can show when the compressor is running as well as the reservoir pressure and the compressor temperature, but perhaps not for the earlier vehicles. A LED could be used to show when the compressor is powered but it will need a resistor to prevent blowing up the LED. I'd have to check on an appropriate resistor value but using the IIDtool would be much easier.

Thanks, but can you drive around with the iid tool connected? As for the red light on the dash, its not the ABS but the one next to it that has an exclamation mark I did my pump with a kit i got from UK so i hope that is not the problem.
This problem has been with me for months now. It all started when i had the car serviced by a BMW specilist and they flushed the brakes and did an oil change, it was shortly after that i had the first bong, from the forums i gathered that lifting with the wheels hanging could cause problems so i checked but couldn,t find any connection, changed the right rear speed sensor, that did nothing, did the mod to lower coolant temperature as the fault seems to appear only hen the engine is hot, that did nothing, to test that theory i opened the hood and ran a fan into the engine bay and for the first time the fault cleared itself during the day,
So i am willing to try any new route that i can.maybe i can just wire in a 12 volt globe to see what is going on. Thanks for your input.

Have you looked at the compressor? The relationship to engine heating up may be a red herring. I would suggest it may be related to the compressor overheating rather than engine temperature.

The time taken to heat the engine, as you describe, would also equate to the compressor heating up. The fact that it appears to be alright after an overnight rest, when the compressor would have cooled down, could also be an indication. John
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You can drive with the tool connected but it might be revealing if the various suspension values were looked at just with the engine running.

Perhaps you could contact Gap Diagnostics to see if they can provide additional information for the fault codes the tool is retrieving.