Body Electrical System
Repair Procedures
In this manual: Body Electrical System
12steps
~72min
3/5difficulty
Done 0 of 12
DEPOSIT
- Disconnect the negative (-) battery terminal.
- Remove the instrument panel center panel. (Refer to Body - Instrument Panel)
- Remove the BCM (A) after loosening the nut, and disconnect the connectors (B).

REMEDY
- Install the BCM.
- Install the instrument panel center panel.
- Connect the negative (-) battery terminal.
BCM Diagnosis Using GDS

- The body electrical system can be quickly diagnosed for defective parts using the Global Diagnostic System (GDS). The GDS provides the following information.
- Self-diagnosis: checking and displaying diagnostic trouble codes (DTC)
- Current data: checking the input/output status of the system
- Actuation test: checking the operating conditions of the system
- Additional function: control other than operation, such as option setting and zero point adjustment
- Select the "Vehicle Model" and the system to be checked in order to inspect the vehicle with the scan tool.
- Select "Body Control Module (BCM)".
- Select "Current Data" to check the current status, input/output. Input/output for the sensors connected to the BCM can be checked.

- To perform data operation of each module, select "Activation Test".

- To change a user setting, select "User Setting".


Test yourself
A quick Hyundai i20 quiz: every answer comes with an explanation and a link to the manual page.
Was this page helpful?