DTC B14B5: Lost Communication with Front Seat Temperature Adjustment Switch LIN [06/2018 - ]: Description

The refreshing seat switch communicates with the air conditioning amplifier assembly via LIN communication.

If the LIN communication system is malfunctioning, the air conditioning amplifier assembly will not operate even if the refreshing seat switch is operated.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area
B14B5	Lost Communication with Front Seat Temperature Adjustment Switch LIN	Lost communication with the refreshing seat switch	Refreshing seat switch Air conditioning amplifier assembly Wire harness or connector ECU-IG1 NO. 4 fuse