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Home >> Toyota >> 2012 >> Sienna SE >> Repair and Diagnosis (Single Page) >> Electrical >> Gauges >> Meter / Gauge / Display (Diagnostic Codes & 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 U0151: Lost Communication with Airbag ECU >> Description

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 U0151: Lost Communication with Airbag ECU: Description

The combination meter communicates with the ECM, skid control ECU, power steering ECU, main body ECU and center airbag 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:
  • No communication with ECM continues for 2 seconds or more
  • ECM
  • 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
  • Brake actuator 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:
  • No communication with power steering ECU continues for 3 seconds or more
  • Steering column assembly (power steering ECU)
  • CAN communication system
  • Combination meter assembly
U0151 When 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