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Home >> Lexus >> 2011 >> HS 250h >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Meter/Gauge/Display (Diagnostic Codes & Circuit 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 >> 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: Description

The combination meter assembly communicates with the hybrid vehicle control ECU via the CAN communication system (CAN No. 1 Bus).

DTC No. DTC Detection Condition Trouble Area
U0100 When IG voltage is 9.5 V or more and the following condition is detected:
  • No communication with hybrid vehicle control ECU continues for 2 seconds or more
  • 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:
  • No communication with skid control ECU continues for 3 seconds or more
  • 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:
  • No communication with power steering ECU continues for 3 seconds or more
  • Power steering ECU
  • CAN communication system
  • Combination meter assembly
U0142 When IG voltage is 9.5 V or more and the following condition is detected:
  • 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 vehicle speed is 5 km/h (3.1 mph) or more, IG voltage is 9.5 V or more, and the following condition is detected:
  • No communication with center airbag sensor assembly continues for 10 seconds or more
  • Center airbag sensor assembly
  • CAN communication system
  • Combination meter assembly