
| Pin | Connector A | Connector B | Connector C |
| 1 | - | B+ (Power) | Seat slide motor switch (Forward) |
| 2 | Seat recline motor (Forward) | Ground (Power) | Seat recline switch (Forward) |
| 3 | Seat height motor (Up) | B+ (Power) | Seat tilt switch (Up) |
| 4 | Seat slide motor(Forward) | - | Seat height switch (Up) |
| 5 | - | Ground (Power) | - |
| 6 | Seat recline motor (Backward) | B_CAN (High) | |
| 7 | Seat tilt motor (Up) | B_CAN (Low) | |
| 8 | Seat tilt motor (Down) | - | |
| 9 | Seat height motor (Down) | Lumber support motor Def input | |
| 10 | Seat slide motor (Backward) | Seat slide sensor | |
| 11 | Seat tilt sensor | ||
| 12 | - | ||
| 13 | Seat position sensor power | ||
| 14 | IGN 1 | ||
| 15 | Seat slide switch (Backward) | ||
| 16 | Seat recline switch (Backward) | ||
| 17 | Seat tilt switch (Down) | ||
| 18 | Seat height switch (Down) | ||
| 19 | - | ||
| 20 | Ground | ||
| 21 | - | ||
| 22 | IMS switch position information input | ||
| 23 | Lumber support motor Def input | ||
| 24 | Seat recline sensor | ||
| 25 | Seat height sensor | ||
| 26 | - | ||
| 27 | - | ||
| 28 | Battery (+) |

1.Disconnect the negative (-) battery terminal.
2.Remove the front seat assembly.(Refer to Body - "Front Seat Assembly")
3.Disconnect power seat unit connector (A).

4.Remove the power seat unit (A) after loosening mounting screws.


1.Install the IMS unit after reconnecting the connector.
2.Install the driver seat.
3.Connect the negative (-) battery terminal.
Schematic Diagrams
IMS Control SwitchHyundai Tucson (NX4) 2022-2026 Owner's Manual: Hill-Start Assist Control (HAC)
Hill-Start Assist Control helps prevent
the vehicle from rolling backwards when
starting from a stop on a hill.
WARNING
Always be ready to depress the
accelerator pedal when starting from
a stop on an uphill slope. Hill-Start
Assist Control activates only for about 2
seconds.
Informat ...
Hyundai Tucson (NX4) 2022-2026 Service Manual: Ambient Sensor
- Description
The ambient temperature sensor is located at the front of the condenser
and detects ambient air temperature. It is a negative type thermistor;
resistance will increase with lower temperature, and decrease with
higher temperature.The sensor output will be used for discharge
t ...