Hyundai Elantra: Rear Corner Radar System / Troubleshooting

Hyundai Elantra (CN7) 2021-2025 Service Manual / Advanced Driver Assistance System (ADAS) / Rear Corner Radar System / Troubleshooting

Diagnosis with Diagnostic tool

In the body electrical system, failure can be quickly diagnosed by using the vehicle diagnostic system (Diagnostic tool).

The diagnostic system (Diagnostic tool) provides the following information.

(1)	Fault Code Searching : Checking failure and code number (DTC)

(2)	Data Analysis : Checking the system input/output data state

(3)	Actuation test : Checking the system operation condition

(4)	S/W Management : Controlling other features including system option setting and zero point adjustment

2.	Connect the cable of Diagnostic tool to the data link connector in driver side crash pad lower panel, and turn on the Diagnostic tool.

3.	If diagnose the vehicle by Diagnostic tool, select "DTC Analysis" and "Vehicle".

4.	If check current status, select the "Data Analysis" .

5.	Select "BCW", if you want to check current data of BCW system.

6.	If you want to check each module operation forcefully, select "Actuation test".

Description and operation

DescriptionRear Corner Radar is a system that measures the relative speed and distance from the following vehicles by using two electromagnetic wave radar sensors attached to the rear bumper, and detects any vehicle within the blind spot zone and gives off alarm...

Components and components location

Components1. Rear corner radar unit2. Speaker3. Warning indicator..

Other information:

Hyundai Elantra (CN7) 2021-2025 Service Manual: Coolant Reservoir Tank

Repair procedures Removal and Installation1.Drain the coolant.(Refer to Cooling System - "Coolant")2.Disconnect the degassing hose (A) and coolant reservoir tank hose (B).3.Remove the coolant reservoir tank (A). Tightening torque : 7.8 - 11.8 N.m (0.8 - 1.2 kgf.m, 5.8 - 8.7 lb-ft)4.Install in the reverse order of removal.5.Fill with engine coolant. (Refer to Cooling System - "Coolant..

Hyundai Elantra (CN7) 2021-2025 Service Manual: Rear Door Belt Outside Weatherstrip

Repair procedures Replacement1.Pull down the rear door window glass to the lowest level by pressing the power window glass switch.2.Remove the rear door belt outside weatherstrip (A).3.To install, reverse the removal procedure. • Replace any damaged clips...

Rear center seat belt

When using the rear center seat belt, the buckle with the “CENTER” mark must be used.

WARNING

Make sure that the seatback is locked in place when using the rear center seat belt.

If not, the seatback may move when there is a sudden stop or collision, which could result in serious injury.