Vehicle Interior

Problem Symptoms Table

~1min read
PROBLEM SYMPTOMS TABLE

HINT:

  • 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.
Seat Heater System

Symptom

Suspected Area

See page

Seat heater LH does not operate

Seat heater switch LH

Separate type front seat cushion cover LH

Separate type front seatback cover LH

Seat heater control sub-assembly LH

Harness or connector

-

Seat heater RH does not operate

Seat heater switch RH

Separate type front seat cushion cover RH

Separate type front seatback cover RH

Seat heater control sub-assembly RH

Harness or connector

-

Test yourself

A quick Toyota 4Runner quiz: every answer comes with an explanation and a link to the manual page.