Unfortunately not FSJ. It’s a 2001 Sierra which was my Dad’s truck. Has a switch in the cab which will no longer raise but will lower and a backup switch on the frame which functions normally. I think the contacts on the cab switch function normally? Up button plus ground give me 3 V at rest 12 V activated. Down button plus ground 12 V at rest, 0 V activated.
Can only part of the solenoid(I think that’s what it is) go bad? Where white wire attaches near the hydrolic pump. I don’t see any numbers on the “solenoid”, how do I find a replacement?
Thanks,
Sid