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DTC B1497: Communication Malfunction (Bus Ic) [12/2019 - 10/2022]: Description

The air conditioning harness assembly connects the air conditioning amplifier assembly and the servo motors.

The air conditioning amplifier assembly supplies power and sends operation instructions to each servo motor through the air conditioning harness assembly.

Each servo motor sends damper position information to the air conditioning amplifier assembly.

DTC No. Detection Item DTC Detection Condition Trouble Area Memory
B1497 Communication Malfunction (Bus Ic) Error or open in communication line between air conditioning amplifier assembly and No. 1 air conditioning radiator damper servo sub-assembly
  • Air conditioning harness assembly
  • Air conditioning amplifier assembly
 Memorized
(10 sec. or more)*

*: The air conditioning amplifier assembly stores this DTC if the malfunction has occurred for the period of time indicated in the brackets.

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