Hyundai Elantra AD Quiz
Body Electrical System

Description and Operation of Instrument Cluster

In this manual: Body Electrical System
General Information — 9Engine Mechanical System — 84Engine Electrical System — 60Emission Control System — 24Engine Control System/Fuel System — 90Automatic Transmission — 92Drive Shaft and Axle — 20Suspension System — 31Steering — 20Restraints — 50Brake System — 63Body (Interior and Exterior) — 214Body Electrical System — 221Heating, Ventilation, and Air Conditioning — 71
4steps
~24min
2/5difficulty
Done 0 of 4

Description

Communication Network Diagram
Abbreviation Description
ACU Airbag Control Unit
ADM Assist Door Module
B_CAN Body Controller Network
BCM Body Control Module
BSD Blind Spot Detection
C_CAN Chassis Controller Area Network
CLU Cluster Module
DATC Dual Automatic Temperature Control
DDM Driver door module
ESC Electronic Stability Program
Emergency Call Engine Control System
LKAS Lane Keeping Assist System
M_CAN Multimedia Controller Network
MDPS Motor Driven Power Steering
P_CAN Power Train Controller Area Network
PSM Power Seat Module
CAC Steering Wheel Angle Sensor
SJB Smart Junction Box
SMK Smart Key Unit
PAS Park Assist System
TCU Transmission Control Unit
SCP Tire Pressure Monitoring System
VDC Vehicle Dynamic Control
TMU Telematics System
ABS Anti-Lock Braking System (ABS)
CCS Smart Cruise Control

Cluster Variant Coding. Since the vehicle now has more options (ESC, MDPS, SCC, etc.), the instrument cluster displays more information depending on the selected options. For this reason, it is necessary to determine which options the current vehicle has when replacing the instrument cluster. To solve this problem, a training course has been developed. The option required for the vehicle must be performed when replacing the instrument cluster. This is called variant coding. Function
  1. High-Speed CAN Communication (C-CAN)
    A. Customer Feature: Locking Seat Sheets, Welcome Light
    B. LDWS: Lane Departure Warning System
    C. SPAS: Smart Parking Assist System
  2. Low-Speed CAN Communication (MM-CAN)
    A. AV: Audio/Video Multimedia Information Display
    B. TBT: Turn-by-Turn Navigation Information Display
  3. Sound Output. The instrument cluster and external speakers are connected to output various warning sounds and sound effects. If an external amplifier is applied, directional warning is output through the amplifier. [Standard Type]
    [Supervision Type]
    Sound Description and Function (CAN Data Receiver)
    Welcome Welcome (Key Removed and Door Open/Closed, Checked by BCM)
    Goodbye Goodbye (Cluster)
    Open Door Warning Key Reminder (BCM), vehicle speed 5 km/h or less & IGN switch in ACC or IGN position, or engine start, and when vehicle speed is below 5 km/h, or when driver's door is open
    Unfastened Seat Belt Warning Driver Unfastened Seat Belt Warning (BCM)
    PAS System Warning PAS Sensor Malfunction Warning (BCM)
    R Gear PAS Warning When Shifting to R Gear (BCM and SPAS)
    Parking Brake Parking Brake Warning (BCM)
    Start Button SSB Button Warning (SMK)
    Rheostat Light Information Rheostat Warning When Maximum or Minimum Level Is Selected (Cluster)
    Smart Key Transmission Smart Key Not Present Warning (SMK)
    Smart Key Warning (SMK)
    Smart Cruise Changeover from Normal Cruise to Smart Cruise (SCC)
    Smart Cruise Driving Information Smart Cruise (SCC) Function Cancellation
    Normal Cruise Changeover from Smart Cruise to Normal Cruise (SCC)
    Turn Signal Lamp (Check Mark) Turn Signal Lamp Warning (BCM)
    Turn Signal Lamp (Tock) Turn Signal Lamp Warning (BCM)
    Smart Key Low Battery Voltage Warning When Driver Presses SSB Button with Smart Key Low Battery (SMK)
    EPB Warning Warning When Changing from Auto Hold to EPB Lock (EPB)
    Coolant Temperature Warning When Engine Temperature Is Above 120 °C
  4. User Settings Mode (USM). The settings can be changed using the switches (MENU, UP, DOWN and OK button). There are many items (such as In/Out Seat Synchronization, Steering Wheel Synchronization, Automatic Door Lock, Automatic Door Unlock, Headlamp Follow-Up, Welcome Light, Welcome Sound, One-Touch Turn Signal, Automatic Reset of Average Fuel Consumption, Brightness and Content Setting) that can be set and adjusted. The signal flow during setting is as follows.
    1. USM settings are configured and transmitted to the BCM.
    2. The BCM transmits the settings via B-CAN to the corresponding modules.
    3. The module completes the setting and transmits the changed setting to the BCM.
    4. The BCM transmits the final settings via C-CAN to the cluster.
      • The cluster communicates directly with the C-CAN modules.

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