DTC B1497: Communication Malfunction (Bus Ic) [12/2013 - 11/2016]: Description

for Front Side

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.

for Rear Side

The No. 2 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 No. 2 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	Air conditioning harness assembly No. 1 air conditioning radiator damper servo sub-assembly (air mix) No. 1 air conditioning radiator damper servo sub-assembly (air outlet) Blower damper servo sub-assembly (air inlet) No. 2 air conditioning harness assembly Rear air mix damper servo sub-assembly Rear mode damper servo sub-assembly Air conditioning amplifier assembly	Memorized (10 sec. or more)*1
*1: The air conditioning amplifier assembly stores this DTC if the malfunction has occurred for the period of time indicated in the brackets.