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I have an 04 ST. The lumbar support pump will run if I push the switch, but the bladder isn't filling up. What is the most likely cause and where should I look first? Do I need to remove the seat?
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I have the same issue, though since I never use lumbar adjuster I had actually forgotten about it until I read this post. Now that the weather here in Minnesota is becoming a bit more hospitable, I may have to go out and investigate the problem if I ever get a chance. Sorry I don't have anything else to add that might help Zippy.
There's a little hose that goes from the lumbar compressor, probably mounted on the seat frame under the seat bottom, to the lumbar bags. Either it has become disconnected at the pump or bags OR the bag/bags have a leak.
1 Power lumbar motor electrical connector.
2 Power lumbar bladder hose.
3 Power lumbar motor.