GAP Tool Suspension Calibration
 

I keep getting an error when I try to start the guided calibration. Won’t even start the process. Only thing I can think is that my driveway has a slight grade to it. Would this cause the error?

It will not calibrate if you have any faults. The driveway needs to be flat but not level. Do you have the engine running?

I tried with the engine running and without. I will scan for faults and see if one popped up.

Here are the fault codes. GAP tool will not clear them. Or it will clear and they just come back.

B1C57-14 (2F) Passive start ignition relay coil circuit - General electrical failure - circuit short to ground or open

B1D12-15 (2F) Volumetric alarm power circuit - General electrical failure - circuit short to battery or open

B1D14-15 (6C) Interior lamps 2 circuit - General electrical failure - circuit short to battery or open

U3000-54 (AF) Control module - System programming failure - missing calibration

All were triggered on the same day. Thoughts?

From what I can find online, these are so called ghost faults and are difficult to get rid of. But I do need to calibrate the suspension.

I wonder if you are in tight tolerance mode. Go into the suspension setting and make sure you are not by simply entering tight tolerance mode then going back out of that mode. It is all in the GAP. From there try the guided again. If it still fails, try manual and see what happens.

Will do this evening. Tks.

Might look at the live values of the height sensors and see if the (seemingly random) numbers for the height sensors all seem about the same, ( or as we once saw them sing on TV ............"One of these things is not like the other")

It is an easy test and may not give any clue to the problem, but it is free of cost and takes only a few moment so to check.

Hope this helps
Jeff

Finally was able to get it into a guided calibration. I’ve done it 3 times now and the front is consistently 7mm above my setting of about 467mm which is as close as I could get it. I set the rears at about 487 but one is at 483 and the other is spot on at 487. Should there be this much difference after a fresh calibration?

PS. I was on a flat surface but it did have a downward grade.

tks

Not sure if those numbers are what are shown in the app, but either way they are arbitrary. The only way to calibrate is with a tape measure. And the numbers will never match in the app from side to side because, well, that is the whole reason for calibration. To take the values being sent to the ECU and sorta tell it that the value being ready matching X for a physical height.