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Home >> Toyota >> 2019 >> Yaris LE >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Cruise Control Systems >> Cruise Control System - Diagnostic Codes >> Cruise Control System >> DTC U0001-00: High Speed CAN Communication Bus; DTC U0100-00: Lost Communication With ECM/PCM "A"; DTC U0121-00: Lost Communication With Anti-Lock Brake System (ABS) Control Module; DTC U0131-00: Lost Communication With Power Steering Control Module; DTC U0155-00: Lost Communication With Instrument Panel Cluster (IPC) Control Module [07/2015 - ] >> Contents
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DTC U0001-00: High Speed CAN Communication Bus; DTC U0100-00: Lost Communication With ECM/PCM "A"; DTC U0121-00: Lost Communication With Anti-Lock Brake System (ABS) Control Module; DTC U0131-00: Lost Communication With Power Steering Control Module; DTC U0155-00: Lost Communication With Instrument Panel Cluster (IPC) Control Module [07/2015 - ]: Contents

DTC No. Detection Item DTC Detection Condition Warning Indicate Memory Fail-safe Operation Note
U000100 High Speed CAN Communication Bus CAN line
  • Smart City Brake Support (SCBS) warning light (amber): Not illuminate
 DTC Stored Applicable
  • Smart City Brake Support (SCBS) control: Control disabled
  • Drive cycle: Not applicable
  • Self test type: CMDTC self test
U010000 Lost Communication With ECM/PCM "A" CAN line
  • Smart City Brake Support (SCBS) warning light (amber): Not illuminate
 DTC Stored Applicable
  • Smart City Brake Support (SCBS) control: Control disabled
  • Drive cycle: Not applicable
  • Self test type: CMDTC self test
U012100 Lost Communication With Anti-Lock Brake System (ABS) Control Module CAN line
  • Smart City Brake Support (SCBS) warning light (amber): Not illuminate
 DTC Stored Applicable
  • Smart City Brake Support (SCBS) control: Control disabled
  • Drive cycle: Not applicable
  • Self test type: CMDTC self test
U013100 Lost Communication With Power Steering Control Module CAN line
  • Smart City Brake Support (SCBS) warning light (amber): Not illuminate
 DTC Stored Applicable
  • Smart City Brake Support (SCBS) control: Control disabled
  • Drive cycle: Not applicable
  • Self test type: CMDTC self test
U015500 Lost Communication With Instrument Panel Cluster (IPC) Control Module CAN line
  • Smart City Brake Support (SCBS) warning light (amber): Not illuminate
 DTC Stored Applicable
  • Smart City Brake Support (SCBS) control: Control disabled
  • Drive cycle: Not applicable
  • Self test type: CMDTC self test
DTC Detection Condition
  • U000100 (CAN line)
    • Open or short circuit in CAN system wiring harness is detected
  • U010000 (CAN line)
    • Communication error to ECM is detected in CAN communication
  • U012100 (CAN line)
    • Communication error to brake actuator is detected in CAN communication
  • U013100 (CAN line)
    • Communication error to power steering ECU is detected in CAN communication
  • U015500 (CAN line)
    • Communication error to combination meter is detected in CAN communication
Fail-safe Operation
  • Smart City Brake Support (SCBS) warning light (amber) Illuminates
  • Smart City Brake Support (SCBS) control disabled
Trouble Area
  • CAN communication line malfunction
  • CAN communication line malfunction with ECM
  • CAN communication line malfunction with brake actuator
  • CAN communication line malfunction with power steering ECU
  • CAN communication line malfunction with combination meter
  • Combination meter malfunction
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