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Andy4639 · 11-20-2014, 09:38 PM

I think we figured it out tonight here at work.

A 5 blade NC relay. Terminals of relay 30, 85, 86, 87, 87a.

87A to seat heater,
30 & 85 will have 12 volts connected to them after the heater switch.
86 will go from relay to seat belt connection then to ground.
When switched on the relay wil power up but until the buckle is inserted nothing will happen because the belt is open to ground. Once the seat belt buckles the relay will open and current will flow from 30 to 87 and heat applied to seat.

11-20-2014, 09:38 PM	#18
Andy4639 Old member Join Date: Jan 2002 Location: Liberty, & Garden City S.C. , U.S. Posts: 19,936	Re: Wiring heated seats I think we figured it out tonight here at work. A 5 blade NC relay. Terminals of relay 30, 85, 86, 87, 87a. 87A to seat heater, 30 & 85 will have 12 volts connected to them after the heater switch. 86 will go from relay to seat belt connection then to ground. When switched on the relay wil power up but until the buckle is inserted nothing will happen because the belt is open to ground. Once the seat belt buckles the relay will open and current will flow from 30 to 87 and heat applied to seat. __________________ 1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs.