DSD Information System
Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> Accessories & Equipment >> Seats >> Climate Control Seat System - Diagnostics & Symptom Tests >> Climate Control Seat System >> Climate Control Seat System does not Operate [10/2022 - 11/2023] >> Caution / Notice / Hint

Caution / Notice / Hint

NOTE:
  • Inspect the fuses for circuits related to this system before performing the following procedure.
  • If the auxiliary battery voltage becomes low, auxiliary battery load control will operate in order to ensure sufficient power is supplied to the power steering system. In this case, the climate control seat system may not operate.

    For A25A-FXS: Refer to ON-VEHICLE INSPECTION [12/2019 - 11/2023]

    For T24A-FTS: Refer to ON-VEHICLE INSPECTION [10/2022 - ]

  • The climate control seat system uses the LIN communication system. Inspect the communication function by following How to Proceed with Troubleshooting. Troubleshoot the climate control seat system after confirming that the communication system is functioning properly.

    Refer to HOW TO PROCEED WITH TROUBLESHOOTING [12/2019 - 11/2023] 

Diesel-Data.com