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Home >> Toyota >> 2019 >> Sienna SE, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 13 (Engine Control System [2GR-FE] - Diagnostic Codes (3 Of 3) & Circuit Tests) >> SFI System >> DTC U0101: Lost Communication with TCM [12/2015 - 08/2016] >> Typical Enabling Conditions

Typical Enabling Conditions

WARNING: This page is about a different car, the 2016 Toyota Sienna. 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 higher (More than 1 second)
Ignition switch ON
Starter OFF