Post by dv52 (Australia) on Oct 13, 2019 0:55:53 GMT
hmm........of course anything is possible, but that particular DTC doesn't appear (to me at least) to be a coding issue. "Short ciruit to ground" DTCs generally (although admittedly, not always) occur because of physical problems within the wiring loom, or connector sockets/plugs, or module pin-outs.
Was the car involved in an accident where the air-bag was deployed? If so - you might need to replace modules and generally, you will need a dealer tool to clear the DTC.
If the car was not in an accident where the air-bag was deployed - I suggest that you find a wiring diagram and "chase" the wire/connectors in the circuit for faults.
How old is this vehicle? Some older version mk7s were notorious for the airbag switch under the passenger seat failing with time because of constant seat adjustment - but generally this was an open-circuit (not a short circuit as in your fault). Also, on some older cars where air-bag wires went through the loom to the passenger door, faults occurred because of work-hardening of the wires from repeated door openings - the insulation cracked and short/open circuit faults resulted
As I said, grab a multi-meter and a wiring diagram and start looking for faulty loom/pins/connectors
... And be careful - air bag igniters are pyrotechnic devices that can explode from stray voltages that may arise from electrostatic charges. The official material from VAG is plastered with warning messages related to working on air bag faults. Even the normally innocuous internal battery inside the multi-meter can be hazardous to these igniters!!
Dear Don Many thanks for your rep, i bought this car as used car and i don't think there is any problem in the car Airbag exploded but this error appear after 30,000K My car is Mk7 GTI 2015
Note the same error apear days ago but i cleared it and it's gone and normaly i drive the car for 1 hour and when i back to home i turned off the car second day when i want to go out the same error apear but when i tried to cleare it it's stuck there ? Strange right maybe there is some lose in connector or wire !
Post by dv52 (Australia) on Oct 13, 2019 7:10:28 GMT
^^hmm.....again, anything is possible - the fact that you were able to clear the DTC "a few days ago" doesn't mean that this is a coding problem. It simply means that the (physical IMO) fault was intermittent in the past and it has now developed into a permanent problem.
Not strange really - it often happens that intermittent faults become more serious with time if not attended.
Dear Dv52 many thanks again but today i removed the yellow connector under the seat then i make new scan ( vcds ) the error changed to ( B100A 1B -Resistance Too High ) what you think the problem is in the seat ?
Post by dv52 (Australia) on Oct 16, 2019 21:18:09 GMT
hmm.......I'm not sure, but the error message that resulted from removing the yellow connector is to be expected regardless of your existing Air-bag fault. By removing the connector, you have "open-circuited" (separated) the wiring loom and therefore you have interrupted the normal flow of electrical current in the circuit. When the car's monitoring system has tried to check that the airbag resistance is OK, it has found that it couldn't push current through the device because the circuit was now, not complete.
So - this 2nd fault says nothing about the first fault, alas. It's just a new fault that you purposefully created.
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