LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Toyota >> 2019 >> Yaris LE >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System - Diagnostic Codes (12 Of 13) >> SFI System >> DTC U0302-00: Software Incompatibility with Transmission Control Module [08/2018 - ] >> Contents
April 5, 2026: LEMON Manuals is launched! Read the announcement.

DTC U0302-00: Software Incompatibility with Transmission Control Module [08/2018 - ]: Contents

DTC No. Detection Item DTC Detection Condition Warning Indicate Memory Fail-safe Operation Note
U030200 Software Incompatibility with Transmission Control Module TCM processor error*
*: ATX
  • Check engine light: ON
  • Master warning light: OFF
  • Charging system warning light: OFF
  • Engine oil warning light: OFF
  • Wrench warning indicator light: OFF
DTC stored Not applicable
  • Drive cycle: 1
  • Monitor item: Other
  • Self test type: CMDTC self test, KOEO self test, KOER self test
200 PIN TYPE

DTC DETECTION CONDITION TCM processor error
  • When any of the following conditions is met:
    • CAN communication line malfunction between TCM and ECM
    • TCM internal malfunction
Diagnostic support note 
  • This is a continuous monitor (other).
  • The check engine light illuminates if the ECM detects the above malfunction condition during the first drive cycle.
  • FREEZE FRAME DATA (Mode 02)/Snapshot data is available.
  • DTC is stored in the ECM memory.
FAIL-SAFE OPERATION Not applicable
TROUBLE AREA
  • TCM connector or terminals malfunction
  • ECM connector or terminals malfunction
  • CAN communication line malfunction between ECM and TCM (local CAN between ECM and TCM)
    • TCM terminal C24-11-ECM terminal C27-1
    • TCM terminal C24-13-ECM terminal C27-31
  • TCM DTC is stored.
  • CAN drive error (TCM or ECM)
  • ECM malfunction
  • TCM malfunction
186 PIN TYPE

DTC DETECTION CONDITION TCM processor error
  • When any of the following conditions is met:
    • CAN communication line malfunction between TCM and ECM
    • TCM internal malfunction
Diagnostic support note 
  • This is a continuous monitor (other).
  • The check engine light illuminates if the ECM detects the above malfunction condition during the first drive cycle.
  • FREEZE FRAME DATA/Snapshot data is available.
  • DTC is stored in the ECM memory.
FAIL-SAFE OPERATION Not applicable
TROUBLE AREA
  • TCM connector or terminals malfunction
  • ECM connector or terminals malfunction
  • CAN communication line malfunction between ECM and TCM (local CAN between ECM and TCM)
    • TCM terminal C24-11-ECM terminal C28-1
    • TCM terminal C24-13-ECM terminal C28-14
  • TCM DTC is stored.
  • CAN drive error (TCM or ECM)
  • ECM malfunction
  • TCM malfunction