Hyundai Venue: Seat Electrical / Air Ventilation Seat. Repair procedures

Hyundai Venue (QX) (2020-2022) Service Manual / Body Electrical System / Seat Electrical / Air Ventilation Seat. Repair procedures

Removal
[Ventilation Blower]
1.
Disconnect the negative (-) battery terminal.
2.
Remove the front seat.
(Refer to Body - "Front Seat Assembly")
3.
Remove the blower duct (A).

Hyundai Venue. Air Ventilation Seat. Repair procedures

4.
Remove the blower FAN (A) after removing the screws.

Hyundai Venue. Air Ventilation Seat. Repair procedures

[Ventilation Seat Unit]
1.
Disconnect the negative (-) battery terminal.
2.
Remove the front seat.
(Refer to Body - "Front seat Assembly")
3.
Remove the ventilation seat unit (A) after disconnect the connectors (B).

Hyundai Venue. Air Ventilation Seat. Repair procedures

Installation
[Ventilation Blower]
1.
Install the blower fan.
2.
Install the duct.
3.
Install the front seat assembly.
4.
Connect the negative (-) battery terminal.
[Ventilation Seat Unit]
1.
Install the ventilation seat unit.
2.
Install the front seat assembly.
3.
Connect the negative (-) battery terminal.
Inspection
Ventilating seat consists of three units : the ventilating seat unit for control, switch for input and and blower for output.
Diagnosis Mode
1.
You can enter the diagnosis mode by turning the heater seat button on.
2.
You can enter the diagnosis mode by referring to following description.
3.
Press the heating wire switch as shown below.
1)
Press and hold the heating wire switch for 3 seconds or more.
2)
Release the switch for 3 seconds or less and press and hold it again for 1.5 - 3 seconds.
3)
Release the switch for 3 seconds or less and press and hold it again for 3 seconds or more.

Hyundai Venue. Air Ventilation Seat. Repair procedures

4.
When the vehicle enters the diagnostic mode, the three LEDs (Low, Mid, High) in the heating wire section blinks once for 0.5 seconds.
1)
When the vehicle enters the self-diagnostic mode, LEDs only work as those for heating wire seat switches.
2)
When two or more errors are detected, the LEDs sequentially blink at a 2-second interval for each error code.

Hyundai Venue. Air Ventilation Seat. Repair procedures

5.
After entering the diagnostic mode, check the LED status to identify the error.

Hyundai Venue. Air Ventilation Seat. Repair procedures

Failure Indicator
LED (Flashing)
Inspection Items
Detailed Inspections

Hyundai Venue. Air Ventilation Seat. Repair procedures



Hyundai Venue. Air Ventilation Seat. Repair procedures

Low voltage detection

Low voltage that deviates from the operating voltage range was supplied.

Over voltage detection

Overvoltage that deviates from the operating voltage range was supplied.

Hyundai Venue. Air Ventilation Seat. Repair procedures

Hyundai Venue. Air Ventilation Seat. Repair procedures

Fuse (Short)


B+ fuse disconnection




IGN2 fuse disconnection


Hyundai Venue. Air Ventilation Seat. Repair procedures

Hyundai Venue. Air Ventilation Seat. Repair procedures

NTC/HEATER MAT (Short)
1)
NTC element failure
2)
Heater mat disconnection
3)
Heater+ wiring disconnection
4)
Heater system NTC disconnection (4.9 V or higher)

Hyundai Venue. Air Ventilation Seat. Repair procedures

Hyundai Venue. Air Ventilation Seat. Repair procedures

NTC/HEATER MAT (Disconnector)
1)
Short-circuit between the controller connector terminal and NTC
2)
Short-circuit between the controller connector terminal and heater
3)
Short-circuit in the heater system NTC wiring
4)
Short-circuit in the heater system heater+ wiring

Hyundai Venue. Air Ventilation Seat. Repair procedures

Hyundai Venue. Air Ventilation Seat. Repair procedures

Target temperature not reached
Target temperature not reached within 40 minutes

Hyundai Venue. Air Ventilation Seat. Repair procedures

Hyundai Venue. Air Ventilation Seat. Repair procedures

Short circuit of Ventilation blower power line
Short circuit of ventilation blower power line (short)

Hyundai Venue. Air Ventilation Seat. Repair procedures

Hyundai Venue. Air Ventilation Seat. Repair procedures

Power disconnection of ventilation blower
Disconnection or missing connector of ventilation power line

Hyundai Venue. Air Ventilation Seat. Repair procedures

Hyundai Venue. Air Ventilation Seat. Repair procedures

Short circuit of ventilation blower speed signal
Short circuit of ventilation blower speed signal (short)

Hyundai Venue. Air Ventilation Seat. Repair procedures

Hyundai Venue. Air Ventilation Seat. Repair procedures

Disconnection or missing connector of ventilation blower speed signal
Disconnection or missing connector of ventilation blower speed signal (VCC)

Hyundai Venue. Air Ventilation Seat. Repair procedures

Hyundai Venue. Air Ventilation Seat. Repair procedures

Disconnection or missing connector of ventilation blower speed signal
Disconnection or missing connector of ventilation blower speed signal (GND)

Hyundai Venue. Air Ventilation Seat. Repair procedures

Hyundai Venue. Air Ventilation Seat. Repair procedures

Short circuit of ventilation blower RPM signal (short)
Short circuit of ventilation blower RPM signal (short)

Hyundai Venue. Air Ventilation Seat. Repair procedures

Hyundai Venue. Air Ventilation Seat. Repair procedures

Disconnection or missing connector of ventilation blower RPM signal
Disconnection or missing connector of ventilation blower RPM signal (GND)

Hyundai Venue. Air Ventilation Seat. Repair procedures

Hyundai Venue. Air Ventilation Seat. Repair procedures

Disconnection or missing connector of ventilation blower RPM signal
Disconnection or missing connector of ventilation blower RPM signal (GND)

6.
You can check the malfunctioning by checking the blinking LED.
7.
The failure data is recorded to the memory by the ventilation seat unit.
8.
Press the heating wire seat switch on the passenger side for 5 seconds or more to make the LED blink four times and delete the failure data in the memory.
9.
Pressing the IGN OFF button will end the diagnosis mode for the heater seat.
10.
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.

    Air Ventilation Seat. Schematic diagrams

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