Toyota Corolla Cross: Transponder Key Ecu

 Communication between ECUs connected by LIN Bus off (B278588)

DESCRIPTION If the certification ECU (smart key ECU assembly) detects a communication error with an ECU connected to the certification bus lines for 7 seconds or more, DTC B278588 will be stored. DTC No. Detection Item DTC Detection Condition Trouble

 Problem Symptoms Table

PROBLEM SYMPTOMS TABLE NOTICE: If the auxiliary battery voltage becomes low, auxiliary battery load control will operate in order to ensure sufficient power is supplied to the power steering system. In this case, the windshield deicer system may not operate. HINT: Use the table below to help dete