System does not activate when the switch is pressed up:

This may be caused by:

  • Cruise control system is on or switch not connected.
    If using cruise control switches for iLIFT, cruise control must be off to activate iLIFT. Depending on your application when cruise control is turned off, the factory ECU may require 10-30 seconds to release the switch until it may be used for iLIFT. If using a standard switch, check for continuity between the switch inputs and the ECU.
  • System is off.
    When the ignition power is turned on, you should hear one long beep followed by 1 or 2 short beeps. If you hear 3 beeps, the system is disabled. See the instruction manual for your application to change the mode.
  • Vehicle speed is greater than 25 MPH.
    The system does not allow activation above 25 MPH.
  • The air tank is empty, or not being filled by the air compressor.
    • Turn the ignition on and start the engine. Check the power output stud for +12V. If there is power, the connection to the compressor or the compressor itself is the issue.
    • If there is no power, check the fuse in the PDM. If the fuse is good, remove the 2-wire plug that attaches to the PDM and check for +12V between the terminals. You may need to recycle the ignition power and restart the engine due to the 2 minute maximum run time. If you do not receive power, the iLIFT ECU is not commanding the compressor to turn on.

For iLIFT Systems including a wifi ECU allow the user to make configuration changes, and view diagnostic system information. Click here for information.


Air compressor will not turn on to fill air tanks:

This may be caused by:

  • Voltage is below 12.6v.
    The system requires a steady 12.6 volts to operate in order to maintain sufficient power to the air compressor. This usually requires the engine to be running (place the NSX mode control switch to “Sport+” to keep the engine from shutting off). The air compressor uses 18-22 amps while operating. Turn the engine on to supply required voltage. If the tank is not full, and the air compressor does not turn on, check the power distribution module’s 6mm output stud. If there is not +12v when the engine is running, check the fuse (it should be located on the same side of the 6mm stud you are checking). Contact iLIFT Systems for assistance.
  • Compressor safety feature has been activated.
    The iLIFT system is intended only for intermittent use. iLIFT Systems are designed to work intermittently. The system is designed to allow the vehicle to lift and raise approximately ten (4 wheel lift) to twenty (2 wheel lift) times in a 10 minute span (which will require the air compressor to refill the air tank). The iLIFT ECU (electronic control unit) has built in compressor overheat protection. It will allow up to five compressor activations for up to 2 minutes of total run time every 10 minutes. In addition, your system includes a thermal sensor that will prevent the compressor from turning on if it detects the compressor is getting too hot. The iLIFT system will continue to function to raise the vehicle even if the compressor does not run (as long there is sufficient air pressure).


Compressor does not turn off:

The ECU monitors the air tank pressure, then shuts off the compressor once tank pressure reaches 180 PSI. If the system continues to run, it is because there is a leak and the compressor cannot fully pressurize the tank, or there is a problem with the pressure signal from the tank. If you have verified there are no leaks, contact iLIFT Systems for assistance.


I hear an air leak from the iLIFT actuators when the vehicle is raised:

Taking care to lift and support the vehicle, inspect the following:

  • Tube into air fitting.
    If leaking from this area, remove the tube, cut a small end off and make sure the end of the tube does not have any burs. Replace tube and recheck. If you still hear leaks, the o-ring seal in the fitting is likely damaged. Contact iLIFT Systems for a replacement.
  • Air fitting into iLIFT actuator.
    If leaking from this area, replace the air fitting. Contact iLIFT Systems for a replacement.
  • Top of actuator
    Spray some soapy water can be sprayed on the top of the iLIFT actuator to check for air leaks. If a leak is observed, it is most likely caused by the cylinder seal, which is rare but not impossible. If it is leaking from the top cylinder seal, the seal was likely damaged during installation.
  • Bottom of actuator
    Cup your hand around the spring. If you feel air pressure, or hear a difference in sound, the issue is likely the piston seal. This is the most often cause for air leaks, and is caused during installation of the actuator onto the shock shaft. This can happen if the supplied cone tool was not installed, or if the tool was not installed properly on the shaft during installation. Replacement requires sending the actuator to iLIFT for replacement. You should inspect the cone tool for damage, and also replace the tool if it is damaged.