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Home >> Lexus >> 2015 >> ES 300h >> Repair and Diagnosis (Single Page) >> Electrical >> Gauges >> Meter / Gauge / Display (Diagnostic Tests, Circuit Tests & Symptom Tests) >> Meter / Gauge System >> DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0129: Lost Communication with Brake System Control Module; DTC U0131: Lost Communication with Power Steering Control Module; DTC U0142: Lost Communication with Body Control Module "B"; DTC U0151: Lost Communication with Restraints Control Module; DTC U023A: Lost Communication with Front Camera Module [08/2014 - ] >> Description
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DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0129: Lost Communication with Brake System Control Module; DTC U0131: Lost Communication with Power Steering Control Module; DTC U0142: Lost Communication with Body Control Module "B"; DTC U0151: Lost Communication with Restraints Control Module; DTC U023A: Lost Communication with Front Camera Module [08/2014 - ]: Description

The combination meter assembly communicates with the ECM, power management control ECU, skid control ECU, power steering ECU assembly, main body ECU (multiplex network body ECU), airbag sensor assembly and lane departure warning camera 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:
  • No communication with ECM or power management control ECU continues for 2 seconds or more
  • CAN communication system
  • ECM
  • Power management control ECU
  • 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
  • CAN communication system
  • Brake booster with master cylinder assembly (Skid control ECU)
  • 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 assembly continues for 3 seconds or more
  • CAN communication system
  • Power steering ECU assembly
  • 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 10 seconds or more
  • CAN communication system
  • Main body ECU (Multiplex network body ECU)
  • Combination meter assembly
U0151 When IG voltage is 9.5 V or more and the following condition is detected:
  • No communication with airbag sensor assembly continues for 10 seconds or more
  • CAN communication system
  • Airbag sensor assembly
  • Combination meter assembly
U023A When IG voltage is 9.5 V or more and the following condition is detected:
  • No communication with lane departure warning camera continues for 10 seconds or more
  • CAN communication system
  • Lane departure warning camera
  • Combination meter assembly