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Home >> Toyota >> 2022 >> Prius XLE AWD-e >> Repair and Diagnosis >> External Pages >> Different car >> Section 279 (Seat Heater - Diagnostic Codes & Symptom Tests (Except Hybrid)) >> SEAT HEATER SYSTEM (for Gasoline Model) >> DTC B14B5: Lost Communication with Front Seat Temperature Adjustment Switch LIN [04/2018 - ] >> Description

DTC B14B5: Lost Communication with Front Seat Temperature Adjustment Switch LIN [04/2018 - ]: Description

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The seat heater switch (radio and display receiver assembly) 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 seat heater switch (radio and display receiver assembly) 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 seat heater switch (radio and display receiver assembly)
  • Seat heater switch (radio and display receiver assembly)
  • Air conditioning amplifier assembly
  • Wire harness or connector
  • ECU-IG1 NO. 4 fuse