Home >> Toyota >> 2016 >> Avalon XLE Plus >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission [U660E] - Diagnostic Codes & Circuit Tests - (Except Hybrid) (2 Of 2) >> Automatic Transaxle System >> DTC U0100: Lost Communication with ECM / PCM "A" [10/2014 - 10/2015] >> Typical Malfunction Thresholds