Hyundai Sonata LF Quiz
Body Electrical System

Seat Heater Repair Procedures

In this manual: Body Electrical System
General Information — 9Engine Mechanical System — 90Engine Electrical System — 58Emission Control System — 24Engine Control System/Fuel System — 114Drive Shaft and Axle — 15Suspension System — 35Steering — 19Restraints — 50Brake System — 54Body (Interior and Exterior) — 213Body Electrical System — 241Heating, Ventilation, and Air Conditioning — 56DCT (Dual Clutch Transmission) System — 52
6steps
~36min
2/5difficulty
Done 0 of 6

Inspection

Front Seat Heater
  1. Check the circuit continuity and measure the resistance between terminals No. 3 and No. 6.

    Standard Value Driver/Assist (cushion + back): 1.58±10%

  2. Turn on the seat heater after connecting the connector, then check the thermostat by measuring the seat surface temperature. Standard value 1st: cushion: 36 ±2 °C, back: 40 ±2 °C 2nd: cushion: 39 ±2 °C, back: 45 ±2 °C 3rd: cushion: 42 ±2 °C, back: 50 ±2 °C
  3. Check continuity and measure the resistance between the terminals.
    Standard Value Cushion (terminals 4-6): 2.94±10% Rear (terminals 5-6): 2.71?±10%
  4. Turn on the seat heater after connecting the connector, then check the thermostat by measuring the seat surface temperature. Standard value 1st: cushion: 36 ±2 °C, back: 40 ±2 °C 2nd: cushion: 39 ±2 °C, back: 45 ±2 °C 3rd: cushion: 42 ±2 °C, back: 50 ±2 °C
  5. Check the circuit continuity and measure the resistance between terminals No. 1 and No. 4.

    Standard Value Rear Seat: 2.82?±10%

  6. Turn on the seat heater after connecting the connector, then check the thermostat by measuring the seat surface temperature.

    Standard value High (cushion): 38 ±2 °C Low (cushion): 42 ±2 °C

Seat Heater (Ventilation) / Rear Seat Heater

Test yourself

A quick Hyundai Sonata LF quiz: every answer comes with an explanation and a link to the manual page.