airbag light came on when I turned the ignition while battery was dead, but the code wont..
03-05-2009, 04:49 PM
#1
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airbag light came on when I turned the ignition while battery was dead, but the code wont..
erase. My fiance brought it to a friend of a friend at Audi and he said that the code wont clear and he thinks the module is bad. I didnt speak to him personally but is it possible he did something wrong? the light never came on until I tried to start it with a dead battery, could that have ruined the module? Is it easy to replace if need be? thanks
03-06-2009, 02:48 AM
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Try disconnecting the battery and touching the disconnected battery cables together.
The ECU probably set a checksum error due to the low voltage some of the control units won't let this fault be cleared .
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03-06-2009, 07:09 PM
#8
not if the fault is permanently in the system
you can't erase a code that's being caused by an active fault, every time you turn the key on in the ignition the SRS system does a self test....light is on for a sec or two because it tests the light bulb itself(among airbags, module, crash sensors, active seatbelts, etc.)
If all checks out well, light goes out.
If a fault is determined, light stays on.....like in your case.
You should have a code stored though, find out what that is and we'll take it from there.
Good luck.
If all checks out well, light goes out.
If a fault is determined, light stays on.....like in your case.
You should have a code stored though, find out what that is and we'll take it from there.
Good luck.
03-06-2009, 07:11 PM
#9
it will discharge the capacitors......there's really no need for that, after 93 takes 200ms(milisec)
do dissarm the SRS and that includes discharging the capacitors...below 93 i believe it's half an hour(20 min i think but be safe, go the extra 10)