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You are watching: Air suspension switch lincoln town car

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Sounds prefer the compressor is no running when it should and you space uncertain the the relationships to get the compressor running automatically? Attached are the electric diagrams.When the suspension height sensor detects a short body problem it signals the air suspension module that grounds its pin 23 and also Dark Blue v yellow tracer wire to the wait suspension compressor relay pen 85 and also the relay provides power to the air suspension compressor. So is the relay pin 85 grounded? The circuit is it is provided by fuse 12 (30A) from the engine compartment fuse box and also provides power v Light blue through pink tracer wire to pins 30 and 86 top top the relay. The solenoid in between pins 85 and 86 top top the relay close (when power and also ground applied to relay) the move for strength to run from pen 30 to pen 87 ~ above the relay. Pin 87 top top the relay is associated to the compressor with a Grey through red tracer wire. The compressor should run.The waiting suspension device should be sealed (unless over there is a leak) and also the only way of enabling a pressure drop is because that the waiting suspension module to power its pin 24 and provide power come the vent solenoid top top the compressor v the pink wire. Check to check out if that is gift powered to relax air indigenous the system.The height sensor under the left behind suspension must be functioning correctly. That is a directly tube that have the right to get much shorter when the body is low and needs wait or much longer when the body is high and needs to shed air. An electrical signal tells the air suspension module the the suspension is at the right height (trim height). Suspension height transforms occur as essential when the car is stationary yet delayed by about 45 seconds once the vehicle is gift driven.It is possible to progressive the behind suspension by switching turn off the suspension in the trunk and removing the wait suspension module connector and grounding the compressor relay to start the compressor and providing 12 volts in ~ the module exploit connector (BR/PK wire pen 13 and also T/W wire pin 25 connectors harness side) to the behind air feather solenoids to open up them.

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Once the suspension is as much as level eliminate the connectors because that the behind spring solenoids and remove the ground to prevent the compressor. The EVO strength steering aid reduction will be disconnected if the waiting suspension move is off and also the connector gotten rid of from the air suspension module (just in case you take a drive and wonder what is up v the steering).Good luck.