On some few systems, turning key #SwitchON could fully #PowerON the #ECU🤔, otherwise it just pings the #ControlUnit send a negative to the #ECUrelay which relays back real power from the battery! As fully explained here👇
www.5021.tips/ujanja/ecu
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Never mistake the Ignition-ON power for that the ECU is getting power! #HapaUjanjaTu
#ECUrepairs #ECUProgramming #ECUcoding
#AutoRepair #AutoRepairTips #RepairTips
#5021Tips #ECUtuning #KeyProgramming