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Home >> Toyota >> 2017 >> Prius C Two >> Repair and Diagnosis (Single Page) >> Hybrid/Electric Powertrain >> Testing and Diagnosis >> Hybrid Control System - Diagnostic Codes (6 Of 6) & Circuit Tests >> Hybrid Control System >> DTC U0110-194: Lost Communication with Drive Motor Control Module "A"; DTC U0110-197: Lost Communication with Drive Motor Control Module "A"; DTC U0110-199: Lost Communication with Drive Motor Control Module "A"; DTC U0110-230: Lost Communication with Drive Motor Control Module "A" [11/2015 - ] >> Description
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DTC U0110-194: Lost Communication with Drive Motor Control Module "A"; DTC U0110-197: Lost Communication with Drive Motor Control Module "A"; DTC U0110-199: Lost Communication with Drive Motor Control Module "A"; DTC U0110-230: Lost Communication with Drive Motor Control Module "A" [11/2015 - ]: Description

The MG ECU, which is built into in the inverter with converter assembly, controls motor (MG2) based on commands from the hybrid vehicle control ECU.

The motor generator control ECU (MG ECU) monitors communication data and detects malfunctions. A communication error between the MG ECU and hybrid vehicle control ECU is detected.

DTC No. INF Code DTC Detection Condition Trouble Area
U0110 194 Error in signal transmission to the inverter with converter assembly (MG ECU) via serial communication (no reception)
(1 trip detection logic)
  • Wire harness or connector
  • Inverter with converter assembly
  • Hybrid vehicle transaxle assembly
  • Motor cable
  • hybrid vehicle control ECU
U0110 197 Error in signal transmission to the inverter with converter assembly (MG ECU) via serial communication (out of communication standard)
(1 trip detection logic)
U0110 199 Error in signal transmission to the inverter with converter assembly (MG ECU) via serial communication (out of communication standard)
(1 trip detection logic)
U0110 230 Error in signal transmission to the inverter with converter assembly (MG ECU) via serial communication (abnormal REQ signal)
(1 trip detection logic)