1. Need 1x pcs 9v battery to work 2. Set the car in TPMS learning mode. (car horns) 3. Starting from the left front tire,the antenna of the dedicated toolfor tire pressure monitoring is facing upwards against the tire sidewal near the rim of the valve stem to start the antenna.Press and release the button and wait for the speaker to emit a chirp. How to use EL-50448 TPMS Relearn Tool Tire air Pressure reset ZR2 Specific but universal for GM. John Drives Anything. 185K views 5 years ago. Page 2 Power Button Super EL50448 Screw 9V Battery JDiag FasTPMS Super EL50448 is new product develpoed by JDiag Eletronics Technology Co.,Ltd in 2017, which is able to work with both GM series and Ford series TPMS relearn tool, Super EL50448 is essential tool of replacement tire Page 3 flashing 2 times, selected brand's LED flashing 2 EL50448 TPMS Relearn tool not working? - YouTube. TPMS is one of the problems that most of you have met .follow the below information to check,it may solve your problem like above when using 3cDUv.

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