I am not sure what you mean by "Relay".
The air pump is in a compartment under the left front wheel well. Move the air filter and look under it.
The trigger switch is in the middle behind the air bags and in front of the gas tank. This tells the system if the rear of the car is too high or too low.
There is a computer box behind the carpeted liner between the on/off switch on the right side in the trunk and the exterior sheet metal.
the air suspension stopped working on my 1994 lincoln
the relay for the air suspension is under the hood in the fuse box and its number 4. I just changed it on mine.
In the trunk
Yes the pump is electric.
I replaced the air suspension on my 1993 town car with one of Strutmasters air suspension conversion kits. My baby rides good again and they have a lifetime warranty. Hard to go wrong.
Under the hood, black box, Fuse #12 also has relay (#4)
It is under the dash board on the right side of the car.
You can troubleshoot the rear air suspension of your 1990 Lincoln Town Car with a diagnostic tester. Most Lincoln dealerships have diagnostic testers.
You need to hook up a scanner to frind the codes if this is what ur asking.
What is the firing order of a 1994 Lincoln Town Car? What is the firing order of a 1994 Lincoln Town Car?
No
On a 1998 Lincoln Town Car : In the Power Distribution Box ( which is " live " ) located in the engine compartment ( relay # 1 is the fuel pump relay )