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Home >> Toyota >> 2018 >> Prius C Two >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Meter / Gauge System - Diagnostic Codes & Symptom Tests >> Meter / Gauge System >> DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0129: Lost Communication with Skid Control ECU; DTC U0131: Lost Communication with Power Steering Control Module; DTC U0142: Lost Communication with Main Body ECU; DTC U0151: Lost Communication with Airbag ECU; DTC U023A: Lost Communication with Front Camera Module [11/2015 - 06/2017] >> Description

DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0129: Lost Communication with Skid Control ECU; DTC U0131: Lost Communication with Power Steering Control Module; DTC U0142: Lost Communication with Main Body ECU; DTC U0151: Lost Communication with Airbag ECU; DTC U023A: Lost Communication with Front Camera Module [11/2015 - 06/2017]: Description

The combination meter assembly communicates with the ECM or hybrid vehicle control ECU, brake booster with master cylinder assembly (skid control ECU), power steering ECU assembly, main body ECU (multiplex network body ECU), airbag sensor assembly and pre-collision city sensor* via the CAN communication system.

DTC No. DTC Detection Condition Trouble Area
U0100 When IG voltage is 9.5 V or more and the following condition is detected:
  1. No communication with ECM or hybrid vehicle control ECU continues for 2 seconds or more
  • ECM
  • Hybrid vehicle control ECU
  • CAN communication system
  • Combination meter assembly
U0129 When IG voltage is 9.5 V or more and the following condition is detected:
  1. No communication with brake booster with master cylinder assembly (skid control ECU) continues for 2 seconds or more
  • Brake booster with master cylinder assembly (Skid control ECU)
  • CAN communication system
  • Combination meter assembly
U0131 When IG voltage is 9.5 V or more and the following condition is detected:
  1. No communication with power steering ECU assembly continues for 3 seconds or more
  • Power steering ECU assembly
  • CAN communication system
  • Combination meter assembly
U0142 When IG voltage is 9.5 V or more and the following condition is detected:
  1. No communication with main body ECU (multiplex network body ECU) continues for 3 seconds or more
  • Main body ECU (Multiplex network body ECU)
  • CAN communication system
  • Combination meter assembly
U0151 When IG voltage is 9.5 V or more and the following condition is detected:
  1. No communication with airbag sensor assembly continues for 10 seconds or more
  • Airbag sensor assembly
  • CAN communication system
  • Combination meter assembly
U023A* When IG voltage is 9.5 V or more and the following condition is detected:
  • No communication with pre-collision city sensor continues for 10 seconds or more
  • Pre-collision city sensor
  • CAN communication system
  • Combination meter assembly