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2554
Light Duty Remote Air Command™ – 2 Corner
INSTALLATION INSTRUCTIONS
Congratulations on your purchase of an Air Command
kit. This kit was designed to provide ination control of
your air helper springs. This kit will be an asset to your
vehicle, meeting nearly all of your air supply needs.
Please take a few minutes to read through the
instructions to identify the components and learn how
to properly install your Air Command kit.
NOTE:
The Air Command kit can be used with all air helper
spring products. If you are installing an air suspension system, do not install the air line tubing to the air
springs as stated in the suspension system instruction manual. If you are adding the Air Command kit
to an existing air suspension system, you will need to
deate the air springs and remove the air line tubing.
NOTE ON CONNECTING THE AIR LINE TUBING
Cut the air line tubing as squarely as possible. T o con-
nect the air line tubing to the ttings, push the tubing
into the ttings as far as possible. If for any reason the
tubing must be removed, rst release the air pressure
from the air helper spring. Push the collar towards
the body of the tting and then pull out the tubing. To
reassemble, make sure the tubing is cut squarely and
push the tubing back into the tting.
PARTS LIST HARDWARE PACK (A21-760-2554)
WIRELESS PAIRED SYSTEM 9456 1
WIRELESS CONTROLLER 9366 1
WIRELESS ECU 9455 1
AIR COMPRESSOR 9377 1
VALVE BLOCK 9357 1
PRESSURE SENSOR 9054 2
AIR LINE (18 FT) 1
21-8427 12-12
MALE FITTING 3055 1
1/4" FLAT WASHER 4
3/16" FLAT WASHER 8
1/4"-20 X 2-1/2" HEX BOLTS 2
10-32 X 3/4" MACHINE SCREW 2
10-32 X 1" MACHINE SCREW 4
10-32 NYLOCK NUT 6
1/4"-20 NYLOCK NUT 2
VELCRO TABS 4
NYLON TIE 15
THERMAL SLEEVE 2
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Press MODE Selection
1 Front Left (LF)
2 Front Right (RF)
3 Rear Left (LR)
4 Rear Right (RR)
5 Fronts (LF & RF)
6 Rears (LR & RR)
7 All corners
(LF,RF,LR,RR)
8 Returns to (LF)
TO AIR SPRINGS
(SOLD SEPARATELY)
2 Corner System
ECU
VIOLET
TAN
TERMINAL NUTS
(TIGHTEN FINGER TIGHT)
WHITE
RED/WHITE
WHITE
RED w/ 20 AMP FUSE
(+ TO BATTERY)
GROUND
(BLACK)
YELLOW
(+ IGNITION)
RED
TO
COMPRESSOR (+)
COMPRESSOR BLACK
(GROUND)
VALVE BLOCK
PRESSURE
SENSORS
WIRE HARNESS & CONNECTOR
(TAN/WHITE, VIOLET/WHITE, GREEN)
AIR LINE
COMPRESSOR
(9377)
MODE - CYCLES
THROUGH
AIR SPRINGS
UP ARROW
INFLATES
AIR SPRING(S)
DOWN ARROW
DEFLATES
AIR SPRING(S)
MEMORY BUTTONS - DISPLAYS
AND ADJUSTS TO PRESET PRESSURE
IN THE AIR SPRING(S)
USING THE MEMORY KEYS
Once the vehicle has been leveled and the desired pressure set, the displayed pressures can be stored
and retrieved using the three memory buttons. Hold one of the memory buttons down for three seconds
and release. To recall the stored pressures, press the memory button once. To inflate/deflate to the stored
pressures, press the same memory button again within three seconds.
PS1
PS2
LF/LR
RF/RR
12V BAT.
+ –
FUSE BOX
2554
Figure “A”
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STEP 1—MOUNT THE COMPRESSOR
Disconnect the negative battery cable. Select a convenient
location to mount the compressor. This location should pro-
vide ample airow and be protected from airborne debris. The
mounting surface should be rigid to support the compressor.
The compressor is oil-less and can be mounted in any orientation necessary for installation. Make sure that the wire harness
will reach from the compressor to the anticipated location of
the ECU. Install a male tting into the threaded output on the
compressor head, see Figure “A”. Tighten the tting suf-
ciently to engage at least two threads with the pre-applied
thread sealant. DO NOT OVER TIGHTEN THE FITTING. Mark
the four compressor mounting holes using the compressor
as a template and a center punch, then drill four 3/16" holes.
Mount the compressor using the supplied 10-32 x 1" machine
screw, 10-32 Nylock nuts and 3/16" washers. See Figure “B”.
Attach the black wire from the compressor to a suitable ground
source on the vehicle.
STEP 2—MOUNT THE MANIFOLD BLOCK
Select the valve block from your kit. Install the pressure sensors into the back of the valve block. See Figure “A”. Select
a convenient location to mount the valve block near the compressor. Mark the two mounting holes using the valve block
as a template and a center punch, then drill two 9/32" holes.
Mount the valve block using the supplied 1/4-20 x 2-1/2" bolts
and 1/4-20 washers and nuts.
Figure “B”
STEP 3—MOUNT THE ECU
Select a location away from direct road spray and close to the compressor and valve block. Mark the two mounting
holes using the ECU as a template with a center punch. Drill two 3/16" holes and mount ECU using two 10-32 x 3/4"
machine screws and 10-32 Nylock nuts.
STEP 4—WIRE THE ECU, COMPRESSOR, AND VALVE BLOCK
Attach the tan wire and one of the ring terminals on the white wire to the studs of the pressure sender at PS1. Attach
the violet wire and the other white wire ring terminal to the studs of the pressure sender at PS2. Plug the six-pin
connector from the ECU into the six-pin connector for the valve block. Ground the compressor (black wire with ring
terminal) to a suitable location on the chassis. Attach the red/white wire with the spade terminal to the red wire of the
compressor. Route the red, yellow, and black wires to the battery. Ground the ECU to the negative battery terminal.
Attach the yellow wire to an ignition-activated +12VDC source. See Figure “A”.
STEP 5—MOUNT THE WIRELESS CONTROLLER
The wireless controller can be mounted in the cabin using the four Velcro pads. Place the pads on the back of the
controller and then rmly place the controller onto the mounting location. The controller should not be left outside
of the vehicle if not in operation.
STEP 6—ROUTE THE AIR LINE
Cut a section of air line tubing that will reach from the compressor to the valve block. Cut the air line tubing as
squarely as possible, insert the tubing into the male tting on the compressor, and then into the tting on the end of
the valve block labeled IN.
Cut a section of air line tubing that will reach from the valve block to one of the air springs. Cut the air line tubing
as squarely as possible, insert the tubing into the tting on the valve block labeled LF/LR, and then insert the other
end into the left front/left rear air spring. Use the Nylon ties provided to secure the air line tubing to the vehicle. Route
the tubing to avoid direct heat from the exhaust system and away from any sharp edges. Repeat this last step on
the other right front/right rear air spring and connect to the valve block port labeled RF/RR. There is a tting on the
valve block to accept additional tubing to route an exhaust line, labeled EXH. This is an option and not necessary
for proper operation.
STEP 7—USING THE WIRELESS CONTROLLER
With the Air Command kit and the air springs installed, you are ready to test the system. Re-attach the negative
battery cable, route the red wire with the fuse to a +12VDC power source, and place the 9V battery into the controller. Turn on the vehicle’s ignition. Press the Mode button on the controller. The controller will display how much air
pressure is in the system.
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Once the system has been turned on (press any of the buttons), the MODE and ARROW keys are used to cycle
through the screen and make selections to inate/deate the air springs. Pressing the MODE button once will display
an arrow pointing at the Front Left (FL) corner. Pressing the up/down button at this time will change the pressure in
the air spring. Continuing to press the MODE button will cycle through the corners:
Press MODE Selection
1 Front Left (LF) — Not used with this kit
2 Front Right (RF) — Not used with this kit
3 Rear Left (LR)
4 Rear Right (RR)
5 Fronts (LF & RF) — Not used with this kit
6 Rears (LR & RR)
7 All corners (LF,RF,LR,RR) — Not used with this kit
8 Returns to single selection (LF)
Once the pressure has been selected, the system will turn on the compressor or open the exhaust valve to
change the pressure. The change can be stopped by pressing either arrow key.
The display will turn off after 20 seconds of inactivity.
STEP 8—CHECK THE SYSTEM
Inate the air springs to 70 psi or the max air spring pressure, which ever is less, and check the ttings for air leaks
with a solution of soap and water. If a leak is detected at a tubing connection, check to make sure that the tube is
cut as squarely as possible and that it is pushed completely into the tting. The tubing can easily be removed from
the tting by rst releasing the pressure from the air spring, then by pushing the collar towards the body of the tting
and holding, then pulling the tube out.
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