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Home >> Lexus >> 2020 >> UX 200 Luxury >> Repair and Diagnosis >> External Pages >> Different car >> Section 24 (Engine Control System (SFI) (M20A-FXS) - Diagnostic Codes (6 Of 6) & Circuit Tests (Hybrid)) >> SFI System >> DTC U0293-87: Lost Communication With Hybrid Powertrain Control Module Missing Message [10/2018 - ] >> Monitor Description

Monitor Description

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The ECM and hybrid vehicle control ECU assembly send and receive signals via CAN communication.

If a communication error occurs between the ECM and hybrid vehicle control ECU assembly, the ECM illuminates the MIL and stores this DTC.

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory Note
U029387 Lost Communication With Hybrid Powertrain Control Module Missing Message All of the following conditions are met for 0.576 seconds or more (1 trip detection logic):
  • Power switch on (IG)
  • Auxiliary battery voltage 10 V or higher
  • No communication between ECM and hybrid vehicle control ECU assembly
  • CAN communication system
  • Hybrid vehicle control ECU assembly
  • ECM
 Comes on DTC stored SAE Code: U0293
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