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Home >> Lexus >> 2010 >> IS 350 >> Repair and Diagnosis >> External Pages >> Different car >> Section 31 (Automatic Transmission (A760H) (Diagnostic Codes (P0500-U0100) & Circuit Tests)) >> Automatic Transmission System >> DTC U0100: Lost Communication with ECM / PCM "A" >> Typical Enabling Conditions

Typical Enabling Conditions

WARNING: This page is about a different car, the 2010 Lexus IS 250. However, it is still accessible from the selected car via links, so may be relevant.
Monitor runs whenever following DTCs not present None
Battery Voltage 10.5 V or more
Engine Switch ON
Starter OFF
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