Pfunk
New Member
At 60K miles, I wasn't optimistic that it would be a brake light switch... it wasn't... busted air spring(s) on the front. so not $50... more like $2000
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At 60K miles, I wasn't optimistic that it would be a brake light switch... it wasn't... busted air spring(s) on the front. so not $50... more like $2000
I was able to identify and solve the same fault issue with mine yesterday. The valve body that controls the pressure going to the reservoir and the front and rear air suspension had a valve that was sticking due to some dirt hanging up one of the o rings.I used the RSWSolutions device to read the fault and it is "Pressure increases too rapid when filling reservoir". I can clear the fault but it soon returns. I haven't seen any others with this fault code on any forum. This is considered a "soft" fault for a minor issue but the manual indicates all faults should be repaired as soon as possible. And I really don't like to see a message that there is a problem, so I'd like to get it repaired. I have ordered a new relay and a drier rebuild kit for the AMK compressor. This compressor was replaced about 2 years ago along with all 4 air shocks. The vehicle height dosn't change at all overnight so it is holding air. Unfortunately just after the fault appeared I found about 1/2 inch of water under the compressor in the spare tire compartment. This is apparently leaking in from the sunroof area. I will also check the air intake filter that is located next to the electronics in the rear left compartment. Also I read that the wiring harness and/or air lines into the compressor compartment may have a misaligned grommet that allows water to enter. I've also read that the brake light switch and/or bulbs may cause similar fault issues. Anyone have any other ideas or helpful suggestions?