Removing
- Remove the floor console.
- Use a screwdriver blade to pry off the seat heater switches and disconnect the electrical connectors from them (pic. 17.92). To prevent damage to the floor console, wrap a cloth around the blade of the screwdriver.
Pic. 17.92. Front seat: 1 - seat heater switch; 2 - headrest; 3 - drawer (car with a drawer located under the front seat); 4 wire harness connector (car with heated front seats); 5 - security harness connector (a car with side airbags located in the seatbacks); 6 - seat slide cover; 7 - front seat
- Remove the head restraint.
- Remove the drawer from under the front passenger seat.
- Disconnect the connector from the seat heater.
- Remove the protective covers of the seat slide.
- On a vehicle with seat-back side airbags, disconnect the harness harness connectors.
- Remove the nuts and bolts and remove the front seat.
- Checking the seat heater switch.
- Using an ohmmeter, check the continuity between the contacts of the seat heater switch connector (pic. 17.93).
Pic. 17.93. The location of the contacts of the seat heater switch connector
Note. To test diodes, reverse the polarity of the ohmmeter from (+) on (-) and retake the measurement.
Seat Heater Switch Continuity Check
Checking the front seat back heater
- Using an ohmmeter, measure the resistance between the front seat back heater connector pins (pic. 17.94).
Pic. 17.94. Measuring the resistance of the front seat back heater
Resistance of the front seat back heater at an ambient temperature of 20°C: 6.84-7.92 Ohm
Checking the seat cushion heater
- Using an ohmmeter, measure the resistance between the front seat cushion heater connector pins (pic. 17.95).
Pic. 17.95. Front seat cushion heater resistance measurement
Front seat cushion heater resistance at 20°C ambient temperature:
- between pins 1 and 2: 0.39-0.44 ohm
- between pins 2 and 3: 6.84-7.92 ohms
- between pins 1 and 3: 6.46-7.48 ohms
Installation
- Installation is carried out in the reverse order of removal.
- Tighten bolts of fastening of forward sitting in sequence And, In, With and D. shown in drawing 17.96.
Pic. 17.96. Subsequence (A, B, C and D) tightening bolts and nuts securing the front seat
- After pre-tightening the seat fasteners (bolts and nuts), after installing them in place, finally tighten the nuts to a torque of 25 Nm and the bolts to a torque of 49 Nm.
Disassembly and assembly of the front seat
Disassembly
- Remove the plug, remove the screw and remove the seatback tilt adjustment knob (pic. 17.97).
Pic. 17.97. Front seat: 1 - plug; 2 - handle for adjusting the inclination of the seat back; 3 - inner side cover; 4 - cover; 5 - automatic lock handle; 6 - front seat seat belt lock; 7 - inner cover; 8-pillow front seat; 9-cushion upholstery; 10-pillow heater; 11 - pillow stuffing; 12 - pillow suspension; 13 - front seat back; 14-headrest guide; 15-back upholstery; 16- back padding and airbag (on a vehicle with side airbags); 17 - back heater; 18 - back padding; 19 - back support; 20 - back spring: 21 - felt protection; 22 - seat position adjuster
- Turn out the screw and remove an internal lateral cover of forward sitting.
- Remove the cover, remove the screw and remove the automatic lock handle.
- Remove the bolt and remove the front seat belt buckle.
- Turn out screws and remove an internal cover of forward sitting.
- Turn out bolts and remove a sitting back.
- Bend the clips and remove the cushion upholstery, cushion heater and cushion padding.
- Squeeze the split lower parts of the headrest rails through the backrest padding and remove them from the seatback (pic. 17.98).
- If necessary, unbend the clips and remove the backrest upholstery with airbag and backrest heater.
Pic. 17.98. Compression directions when removing the head restraint guides
Assembly
- The assembly of the seat is carried out in the reverse order of disassembly.