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Home >> Lexus >> 2015 >> RX 350 Base, FWD >> Repair and Diagnosis >> Suspension >> Wheels & Tire System >> Tire Pressure Warning System (W/O Garage Door Opener) - Diagnostic Codes & Circuit Tests >> TIRE PRESSURE WARNING SYSTEM (w/o Garage Door Opener System) >> Circuit Tests >> ECU Power Source Circuit [03/2014 - ] >> Description

ECU Power Source Circuit [03/2014 - ]: Description

The IG circuit is the power source for the tire pressure warning ECU and receiver.