Possibly two things going on here. Took the truck in yesterday for new tires and an alignment. Jumped in to drive it home and HDC fault system unavailable pops up. Get home plug my GAP tool and and i'm not finding any related faults. What should I be looking for?

Now part 2. I did the AB coil conversion about 3 weeks ago. It's actually been great and working perfectly. But now I'm getting the little exclamation mark under the gas gauge and also the triangle fault lower left.

Is there anything that could of happened while doing alignment?

I can currently switch to low range but none of my traction control options are available.

Again, all of this worked perfectly before going into the shop.

Thanks for any help.

 

Inspect/replace brake switch and lamps. With GAP tool, align the steering angle sensor back to zero on center.

 

The random HDC fault that didn't store sounds like a tired battery to me.

 

Guess I should have been more thorough. Battery and alternator are new.
I'll try the steering alignment tomorrow. Thanks.

 

The steering wheel also has to be absolutely centered when the wheels are straight ahead. If they aren't that will throw faults. And yes a steering angle calibration is likely needed too. I've needed one after some alignments with my LR3s.

 

DakotaTravler life saver, thank you. Just to close this one up, after having an alingment done I HAD to plug my GAP tool in and do a steering calibration. It's now done and the truck is all good. HDC faults are gone.

Again, this is a blaring reason to buy a GAP tool or something similar if you own an LR3!!!!!
Thanks forum!