Hyundai i-30: BCM (Body Control Module) / Repair procedures

Hyundai i30 (PD) 2018-2025 Service Manual / Body Electrical System / BCM (Body Control Module) / Repair procedures

Removal
1.
Disconnect the negative (-) battery terminal.
2.
Remove the glove box upper cover assembly.
(Refer to Body - "Glove Box Upper Cover Assembly")
3.
Remove the smart key unit.
(Refer to -"Smart Key Unit")
4.
Remove the body control module (A) after loosening the mounting nuts and screw.
5.
Remove the body control module (B) after disconnecting the connector (A).
Installation
1.
Install the body control module (BCM).
2.
Install the smart key unit (SMK).
3.
Install the glove box upper cover assembly.
BCM Diagnosis With GDS
1.
In the body electrical system, failure can be quickly diagnosed by using the vehicle diagnostic system (GDS).
The diagnostic system (GDS) provides the following information.
(1)
Self diagnosis : Checking failure and code number (DTC)
(2)
Current data : Checking the system input/output data state
(3)
Actuation test : Checking the system operation condition
(4)
Additional function : Controlling other features including system option setting and zero point adjustment
2.
Select the "Car model" and the 'Body Control Module (BCM)' to be checked in order to check the vehicle with the tester.
3.
Select the 'Current Data' menu to search the current state of the input/output data.
4.
If you want to change user option, select "user option".

    Description and operation

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