Hyundai Tucson: Body Electrical System / Rear Occupant Alert
Description and Operation
– 1st warning: If you open the driver's door after you open and then close the rear passenger and turn the engine off, the system provides warning by showing message on the cluster and giving voice instruction.
– 2nd warning
1)The system detects the indoor movement using the rear occupant alert sensor installed on the head lining when the driver gets off the vehicle and locks all the doors.
2)If any movement inside the vehicle is detected, horn and Hazard Warning Flasher are activated for 25 seconds and the mobile text message is sent.
Components and Components Location
1. Rear Occupant Alert Sensor
2. Integrated body control unit
3. Cluster (Message pop-up and Voice)
Rear Occupant Alert Sensor
1.Disconnect the negative (-) battery terminal.
2.Remove the cover (A) by using a flat-tip screwdriver.
3.Disconnect the connector (A) and then remove the occupant alert sensor.
1.Install the occupant alert sensor.
2.Connect the negative (-) battery terminal.
Daytime Running Light (DRL)
- Removal
1.Disconnect the negative (-) battery terminal.
2.Disconnect the daytime running light connector (A).
3.Loosen the mounting bolts and remove the daytime running light (A).
- Inst ...
Other information:
Hyundai Tucson (NX4) 2022-2026 Service Manual: Schematic Diagrams
- Terminal Function
ABS / ESC
PIN NoDesciption CurrentResistance
1Pump motor supply voltage137 A10 MΩ
2Main CAN Low30 mA250 mΩ
3---
4-- -
4---
5---
6---
7---
8---
9---
10- --
11- --
12---
13Recycle pump ground137 A 10 MΩ
14Main CAN High30 mA250 mΩ
15---
16Stop lam ...
Hyundai Tucson (NX4) 2022-2026 Owner's Manual: Immobilizer indicator light
Without smart key
This indicator light illuminates:
When the vehicle detects the
immobilizer in the key with the
ignition switch in the ON position.
- At this time, you can start the
engine.
- The indicator light goes off after
starting the engine.
This indicator light bl ...
