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Home >> Lexus >> 2010 >> GS 350 AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 168 (Engine Control System (DTCS P0420 - U0101 & Circuit Tests)) >> SFI System >> DTC U0101: Lost Communication with TCM >> Typical Enabling Conditions

Typical Enabling Conditions

WARNING: This page is about a different car, the 2009 Lexus IS 250. However, it is still accessible from the selected car via links, so may be relevant.
Monitor runs whenever following DTCs are not present None
Battery Voltage 10.5 V or more (More than 0.5 seconds)
Engine switch On (IG)
Starter OFF