SEAT  SEAT HEATER SYSTEM(for Gasoline Model)  PROBLEM SYMPTOMS TABLE  

If the battery voltage is low, the seat heater system may not operate. When "High Power Consumption Partial Limit on AC/Heater Operation" is displayed on the multi-information display in the combination meter assembly, inspect the battery, referring to On-vehicle Inspection for the charging system.

for M20C-FKS: Click herePower Source / Network>M20C-FKS (BATTERY / CHARGING)>CHARGING SYSTEM>ON-VEHICLE INSPECTION202409,999999,_57,_087045,_0418150,RM100000002NHRA,

for M20D-FKS: Click herePower Source / Network>M20D-FKS (BATTERY / CHARGING)>CHARGING SYSTEM>ON-VEHICLE INSPECTION202409,999999,_57,_083089,_0402337,RM100000002NHRF,

If the seat heater system is operated when the battery voltage is low, due to the electrical load limit control that gives voltage supply priority to the power steering system, the seat heater system may not operate. In this case, check the vehicle control history of the power steering system and check that "Battery Voltage Drop: X208F" is not stored before proceeding with troubleshooting.*1

Click hereSteering>POWER ASSIST SYSTEMS>POWER STEERING SYSTEM>VEHICLE CONTROL HISTORY202409,999999,_55,_083083,_0403821,RM100000002NGWN,

If the battery voltage is low, the seat heater system may not operate. When "High Power Consumption Partial Limit On AC/Heater Operation" is not displayed on the multi-information display in the combination meter assembly, check the Data List item "Battery Control Count (Body ECU)".*2

Click hereSteering>POWER ASSIST SYSTEMS>POWER STEERING SYSTEM>DATA LIST / ACTIVE TEST202409,999999,_55,_083083,_0403821,RM100000002NGWL,

*1: for HI/MID/LO Type Seat Heater

*2: for HI/LO Type Seat Heater

Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.

Inspect the fuses and relays related to this system before inspecting the suspected areas below.