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Home >> Toyota >> 2019 >> Mirai >> 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 U0110-159: Lost Communication with Drive Motor Control Module "A"; DTC U0110-656: Lost Communication with Drive Motor Control Module "A"; DTC U0110-657: Lost Communication with Drive Motor Control Module "A" [06/2015 - ] >> Description
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DTC U0110-159: Lost Communication with Drive Motor Control Module "A"; DTC U0110-656: Lost Communication with Drive Motor Control Module "A"; DTC U0110-657: Lost Communication with Drive Motor Control Module "A" [06/2015 - ]: Description

For a description of the inverter.

Refer to DESCRIPTION

The MG ECU, which is built into in the inverter with converter assembly, controls drive motor based on commands from the EV control ECU. The MG ECU monitors communication data and detects malfunctions.

The EV control ECU monitors communication data and detects malfunctions.

A communication error between the MG ECU and EV control ECU.

DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate
U0110-159 Lost Communication with Drive Motor Control Module "A" Error in reception from inverter with converter assembly (MG ECU) via serial communication (out of communication standard)
(1 trip detection logic)
  • Wire harness or connector
  • Inverter with converter assembly
  • FCV transaxle with motor assembly
  • FC air compressor with motor assembly
  • EV control ECU
  • PCU fuse
Master Warning Light:
Comes on
U0110-656 Lost Communication with Drive Motor Control Module "A" Error in reception from inverter with converter assembly (MG ECU) via serial communication (out of communication standard)
(1 trip detection logic)
  • Wire harness or connector
  • Inverter with converter assembly
  • FCV transaxle with motor assembly
  • FC air compressor with motor assembly
  • EV control ECU
  • PCU fuse
Master Warning Light:
Comes on
U0110-657 Lost Communication with Drive Motor Control Module "A" Error in reception from inverter with converter assembly (MG ECU) via serial communication (no reception)
(1 trip detection logic)
  • Wire harness or connector
  • Inverter with converter assembly
  • FCV transaxle with motor assembly
  • FC air compressor with motor assembly
  • EV control ECU
  • PCU fuse
Master Warning Light:
Comes on