Hyundai Santa Fe: Seat Electrical / Seat Heater (Non-Air Ventilation). Repair procedures
Driver/Passenger
1. |
Check for continuity and measure the resistance between terminals.
No.
|
Description
|
No.
|
Description
|
1
|
Heater (+)
|
3
|
NTC (-)
|
2
|
NTC (+)
|
4
|
Heater (-)
|
Driver/Passenger
|
Fabric(± 5%)
|
Leather(± 5%)
|
High
|
2.56 kΩ
|
1.84 kΩ
|
Middle
|
3.77 kΩ
|
3.22 kΩ
|
Low
|
5.43 kΩ
|
5kΩ
|
|
2. |
Operate the seat heater after connecting the connector, and then check
the thermostat by measuring the temperature of seat surface.
Driver/Passenger
|
Fabric(± 2%)
|
Leather(± 2%)
|
High
|
42/50 °C
|
42/50 °C
|
Middle
|
39/45 °C
|
39/45 °C
|
Low
|
36/40 °C
|
36/40 °C
|
|
Second Line Seat Heater
1. |
Check for continuity and measure the resistance between terminals.
[RH]
[LH]
No.
|
Description
|
No.
|
Description
|
1
|
Heater (+)
|
3
|
NTC (-)
|
2
|
NTC (+)
|
4
|
Heater (-)
|
Second Line Seat
|
Fabric(± 5%) / Leather(± 5%)
|
High
|
2.29 kΩ
|
Low
|
4.25 kΩ
|
|
2. |
Operate the seat heater after connecting the connector, and then check
the thermostat by measuring the temperature of seat surface.
Driver/Passenger
|
Fabric
|
Leather
|
High
|
1.73V
|
Low
|
1.14V
|
|
Diagnosis mode
1. |
Enter the diagnostic mode referring to below description.
•
|
In failure mode, press the ventilation seat button for 4 seconds
and release it.
|
•
|
Press the ventilation seat button for 2 seconds and release
it.
|
•
|
Lastly, press the ventilation seat button for 4 seconds and
release it.
|
•
|
When entering the failure mode, the LED of the ventilation seat
button turns ON/OFF/blinks at each stage.
|
|
2. |
After entering the diagnosis mode, you can check what failed by checking
the blinking LED.
|
3. |
The table below indicates the failure based on priority, upper item
means higher priority.
|
4. |
If more than one failure is detected, higher priority failure is displayed
through the LED flashing pattern.
|
5. |
Lower priority failure will be displays if higher priority failure is
reset.
[Heater Switch]
[Driver/Passenger]
Failure indicator
|
Inspection items
|
Detailed inspections
|
High : ON
Middle : FLASHING
Low : FLASHING (Low/Over voltage detection)
Low : OFF (Fuse disconnection)
|
Low voltage detection
Over voltage detection
Fuse disconnection
|
1) IGN1 Less than 8.5V
2) IGN1 Less than 16.5V
3) IGN2 fuse disconnection
|
High : FLASHING
Middle : ON
Low : OFF
|
Detection of NTC/Heater disconnect
|
- NTC element failure
- Heater mat disconnection
1) Cushion/Seat back heater mat disconnection
2) Disconnection in the NTC (+) wiring
3) Disconnection in the NTC (-) wiring
4) Disconnection in the heating wire (+)
5) Disconnection in the heating wire (-)
|
High : OFF
Middle : ON
Low : FLASHING
|
Short of between the connector terminals
|
Disconnection in the NTC (+)/NTC (-) wiring
|
High : OFF
Middle : ON
Low : FLASHING
|
Short in the NTC (+)/Heater(-) wiring
|
High : OFF
Middle : ON
Low : FLASHING
|
Short of between the connector terminals
|
1) Short in the NTC (+)/Heater(-) wiring
2) Short in the Heater (+)/Heater(-) wiring
3) Short in the Heater (+)/NTC(-) wiring
|
Heater wiring short
|
4) Disconnection in the NTC (+)/NTC (-) wiring
|
High : FLASHING
Middle : ON
Low : OFF
|
Heater wiring short
|
Short in the Heater (+)/NTC(+) wiring
|
High : OFF
Middle : ON
Low : FLASHING
|
Heater wiring short
|
1) Short in the NTC(+)/Heater (-) wiring
2) Short in the Heater (+)/Heater(-) wiring
3) Short in the Heater (+)/NTC(-) wiring
|
High : FLASHING
Middle : ON
Low : FLASHING
|
Loss of temperature feedback
|
Target temperature not reached within 40 minutes
|
[Second line seat heater]
Failure indicator
|
Inspection items
|
Detailed inspections
|
High : OFF
Low : FLASHING
|
Low voltage detection
Over voltage detection
|
1) IGN1 Less than 8.5V
2) IGN1 Less than 16.5V
|
High : ON
Low : OFF
|
Fuse disconnection
|
IGN2 fuse disconnection
|
High : ON
Low : FLASHING
|
Detection of NTC/Heater disconnect
|
1) Cushion/Seat back heater mat disconnection
2) Disconnection in the NTC (+) wiring
3) Disconnection in the NTC (-) wiring
4) Disconnection in the heating wire (+)
5) Disconnection in the heating wire (-)
|
High : FLASHING
Low : OFF
|
Short of between the connector terminals
|
Short in the NTC (+)/NTC (-) wiring
|
High : FLASHING
Low : ON
|
Short in the NTC (+)/Heater (-) wiring
|
High : FLASHING
Low : OFF
|
Short of between the connector terminals
|
1) Short in the NTC (+)/Heater (-) wiring
2) Short in the Heater (+)/Heater (-) wiring
3) Short in the Heater (+)/NTC (-) wiring
|
Heater wiring short
|
Short in the NTC (+)/NTC (-) wiring
|
High : ON
Low : FLASHING
|
Heater wiring short
|
Short in the NTC (+)/Heater (+) wiring
|
High : FLASHING
Low : OFF
|
Heater wiring short
|
1) Short in the NTC (+)/Heater (-) wiring
2) Short in the Heater (+)/Heater (-) wiring
3) Short in the Heater (+)/NTC (-) wiring
|
High : OFF
Low : ON
|
Loss of temperature feedback
|
Target temperature not reached within 40 minutes
|
|
6. |
If you press the seat heater button for more than five seconds, the
LED for malfunctioning memory will blink four times and the recorded
memory will be deleted.
|
7. |
Pressing the IGN OFF button will end the diagnosis mode for the seat.
|
8. |
You can check whether the heating seat system works properly after turning
the IGN ON. If you want to check the error code, you can refer to the
procedure of 2 above.
|
Components
1. Seat cushion
heater
2. Seat heater unit (Passenger only)
3. Seat back
heater
No...
Other information:
..
Replacement
1.
Disconnect the negative (-) battery terminal.
2.
Remove the roof trim assembly.
(Refer to Body - "Roof Trim Assembly")
3.
Remove the panoramaroof motor mounting screws (3EA)...
Categories
Vehicle Identification Number (VIN)
The vehicle identification number (VIN) is the number used in registering your
vehicle and in all legal matters pertaining to its ownership, etc.
The number is punched on the floor under the passenger seat. To check the number,
open the cover.
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