Finally got a VCXNano up and running and have the unit connecting to the truck to retrieve data. I want to change out the airbag module under the drivers seat due to SRS codes - the unit was badly corroded after the interior floor got wet this winter (hole in the floor has been patched). I have another used unit that I want to change out but I was under the impression that I would have to do a VIN relearn with the new unit after plugging it in. I have navigated the Supplemental Restraint menu on the Tech2 software and I can't find anything of the sort - would it be under the BCM menu or somewhere else?
Tech2 menu help
- Thread starter shegarty
- Start date
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MassHoe04
Full Access Member
If you happened to see my initial response, disregard... I misread and thought you were talking about the sensor.
should be under the srs or sdm special features? ignition has to be on I believe not just on accessory. I know it's in there somewhere I have done it
he's talking about the module, not the sensor, they have to be vin learned
I looked in both of those menus with the ignition in position 2 (run) and didn’t see it anywhere
MassHoe04
Full Access Member
Thanks! I caught that the second time I read through the post. Apologies for that!
Should be under body and supplemental inflatable restraint
Yeah, I looked all around there. I haven’t replaced the module yet though. Will it maybe pop up as an option after I change it out?
What does it show under module I'd information?
Just the data on the module installed. No option to do a VIN relearn
Ya it only does it once and it has to be installed already duh..lol
My bad. Didn’t want to get too far ahead of myself and install the new module before I knew how to reprogram it. Thanks for the heads up.
you won't hurt anything putting it in there, and it won't do the re-learn if there is nothing there to re-learn, the airbag light would just stay on until the re-learn is performed.
disconnect the battery 1st for sure though!!!
For sure, I’ve already had it out previously. Pull the fuse and disconnect the battery - belt and suspenders. Thanks for the help.
I would try and clean up the harness connector as much as possible while you have it unplugged just for good measure, contact cleaner, maf cleaner or something of that nature.
I already did that with the old one in the hopes that it would help - to no avail. There is a good chance that this won’t fix the problem as the codes are for the front two sensors but given the corroded state of the module case I figured it was worth switching. I’ve already tried swapping the sensors with ones from the wreckers without any luck.
could just be a bad module, only 1 way to find out....without a deep diagnostic dive.
From the state of it it’s a good place to start. Also, I was able to get a couple for next to nothing and sensors up here are $150+ ea.
