Code Definition

U0107 — Lost Communication with Throttle Actuator Control Module

System: Network Communication  |  Type: Generic (OBD-II Standard)  |  Make: Generic

About U0107

U0107 is a generic (obd-ii standard) network communication diagnostic trouble code. It belongs to the U-prefix family of codes, which covers inter-module network communication (CAN, LIN, FlexRay, or similar) faults.

Scanning & clearing: Network (U) codes report communication faults between modules. When diagnosing U-codes, checking the vehicle's CAN bus integrity, supply/ground at each module, and reading all modules for related faults is usually the first step.

Because U0107 is a generic OBD-II code, its base definition is shared across manufacturers. The specific diagnostic steps, reference values, and repair procedures can vary by vehicle, and the TaT Diagnostic Assistant includes verified procedures submitted by working technicians.

Code Information

The Powertrain Control Module (PCM) communicates with the Throttle Actuator Control Module over the CAN network to coordinate electronic throttle operation. DTC U0107 is set when the PCM detects a loss of valid communication messages from the throttle actuator control module for a calibrated period of time, indicating a network communication failure or a loss of module operation. Because electronic throttle relies on this data exchange, a lost message stream prevents the PCM from confirming throttle position and commands. When this code is set the vehicle commonly enters a reduced power or lim...

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