Home >> Toyota >> 2018 >> RAV4 XLE, FWD >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> SFI System [2AR-FE] (Diagnostic Codes) (Except Hybrid) (2 Of 7) >> SFI System >> DTC U0101: Lost Communication with TCM [12/2012 - ] >> Typical Malfunction Thresholds