Aact 425 May 2026

Check for burnt terminals or cracked housing. If the solenoid is physically damaged, skip testing and replace it.

Set your DMM to Ohms (Ω). Measure resistance between the two small terminals (the coil). A healthy AACT 425 should read between 10 and 30 ohms. An open circuit (OL) indicates a burnt coil. A short (0 ohms) means the coil is fried. aact 425

Next time you see a liftgate smoothly raise a pallet of bricks or a winch pull a vehicle from a ditch, remember the vital click of the AACT 425—the relay that works tirelessly behind the scenes, duty cycle after duty cycle. Check for burnt terminals or cracked housing