DSD Information System
Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Heating / Air Conditioning System (Except HV, W/ Auto A/C) - Diagnostic Codes (2 Of 2) >> AIR CONDITIONING SYSTEM (for Gasoline Model with Automatic Air Conditioning System) >> DTC B144B-87: Lost Communication with Front Left Air Mix Damper Control Servo Motor LIN Missing Message [11/2023 - ] >> Procedure

DTC B144B-87: Lost Communication with Front Left Air Mix Damper Control Servo Motor LIN Missing Message [11/2023 - ]: Procedure

  1. CHECK FOR DTC 
    1. Check for DTCs.

      Body Electrical > Air Conditioner > Trouble Codes 

      Result

      Result Proceed to
      B142A-88 is output A
      B142A-88 is not output B

    Result: 

    A 

    GO TO DTC B142A-88 

    Refer to DTC B142A-88: Servo Motor LIN Communication Bus off [11/2023 - ]

    Result: 

    B 

    REPLACE NO. 1 AIR CONDITIONING RADIATOR DAMPER SERVO SUB-ASSEMBLY 

    Refer to DISASSEMBLY [11/2023 - ]

Diesel-Data.com