Hyundai Venue: ABS(Anti-Lock Brake System) / EBD(Electronic Brake-force Distribution). Description and operation

Hyundai Venue (QX) (2020-2024) Service Manual / Brake System / ABS(Anti-Lock Brake System) / EBD(Electronic Brake-force Distribution). Description and operation

Description
The EBD System (Electronic Brake force Distribution) as a sub-system of the ABS system is to control the effective adhesion utilization by the rear wheels.
It further utilizes the efficiency of highly developed ABS equipment by controlling the slip of the rear wheels in the partial braking range.
The brake force is moved even closer to the optimum and controlled electronically, thus dispensing with the need for the proportioning valve.
The proportioning valve, because of a mechanical device, has limitations to achieve an ideal brake force distribution tothe rear wheels as well as to carry out the flexible brake force distribution proportioning to the vehicle load or weight increasing. And in the event of malfunctioning, driver cannot notice whether it fails or not.
EBD Controlled by the ABS Control Module, calculates the slip ratio of each wheel at all times and controls the brake pressure of the rear wheels not to exceed that of the front wheels.
If the EBD fails, the EBD warning lamp (Parking brake lamp) lights up.
Advantages
Function improvement of the base-brake system.
Compensation for the different friction coefficients.
Elimination of the proportioning valve.
Failure recognition by the warning lamp.
Comparison between Proportioning valve and EBD

Hyundai Venue. EBD(Electronic Brake-force Distribution). Description and operation

    Troubleshooting

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    ABS Control Module. Components and components location

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    Hyundai Venue (QX) (2020-2024) Service Manual: Specifications


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    Hyundai Venue (QX) (2020-2024) Service Manual: Engine Control Module (ECM). Schematic diagrams


    Engine Control Module (ECM) [M/T] ECM Terminal Function [M/T] Connector [A] Pin No Description Connected to 1 Injector (Cylinder #1) control output Injector (Cylinder #1) 2 Sensor power (+5V) Throttle Position Sensor (TPS) # 1, 2 [ETC module] 3 Sensor power (+5V) Accelerator Position Sensor (APS) 1 4 Main Relay control output Main Relay 5 - - 6 Alternator signal input [FR] Alternator 7 Engine coolant temperature sensor (ECTS) signal input Engine coolant temperature sensor (ECTS) 8 Sensor ground Manifold absolute pressure sensor (MAPS) 9 - 10 Sensor ground Heated Oxygen Sensor (HO2S) [Bank 1 / Sensor 2] 11 - 12 - 13 CVVT Oil Control (OCV) Valve [Bank 1/Intake] control output CVVT Oil Control Valve (OCV) [Bank 1 / Intake] 14 Sensor power (+5V) Manifold absolute pressure sensor (MAPS) 15 Sensor power (+5V) Accelerator Position Sensor (APS) #2 A/C Pressure Transducer (APT) 16 Sensor power (+5V) CMPS [Bank 1 / Intake] CMPS [Bank 1 / Exhaust] 17 Vehicle speed signal input ABS/ESP Control Module [With ABS / ESP] 18 Battery voltage supply after ignition switch Ignition Switch 19 Sensor ground Camshaft Position Sensor (CMPS) [Bank 1 / Exhaust] 20 Sensor ground A/C Pressure Transducer (APT) 21 Sensor ground Battery sensor 22 - 23 - 24 - 25 Injector (Cylinder #2) control output Injector (Cylinder #2) 26 Cooling Fan Relay [High] control output Cooling Fan Relay [High] 27 Start relay control output (With smart key) Start relay 28 Alternator control output [COM] Alternator 29 C-CAN [Low] Other control module, Data Link Connector (DLC), 30 - 31 Camshaft Position Sensor (CMPS) [Bank 1 / Exhaust] signal input Camshaft Position Sensor (CMPS) [Bank 1 / Exhaust] 32 Sensor ground Crankshaft Position Sensor (CKPS) 33 Crankshaft Position Sensor (CKPS) signal input Crankshaft Position Sensor (CKPS) 34 Sensor ground Throttle Position Sensor (TPS) 1, 2 35 Sensor ground Accelerator Position Sensor (APS) 2 36 Sensor ground Accelerator Position Sensor (APS) 1 37 Injector (Cylinder #4) control output Injector (Cylinder #4) 38 - 39 Engine RPM signal output Smart key Control Module 40 Immobilizer communication line Immobilizer Control module [Without Smart Key] Smart Key Control module [With Smart Key] 41 C-CAN [High] Other control module, Data Link Connector (DLC) 42 - 43 Purge Control Solenoid Valve control output Purge Control Solenoid Valve (PCSV) 44 - 45 Injector (Cylinder #3) control output Injector (Cylinder #3) 46 Cooling Fan Relay [Low] control output Cooling Fan Relay [Low] 47 Camshaft Position Sensor (CMPS) [Bank 1 / Intake] signal input haft Position Sensor (CMPS) [Bank 1 / Intake] 48 Battery power (B+) Battery 49 Heated Oxygen Sensor [Bank 1 / Sensor 1] Heater control output Heated Oxygen Sensor [Bank 1 / Sensor 1] 50 Power Ground Chassis Ground 51 - 52 Power Ground Chassis Ground 53 Heated Oxygen Sensor [Bank 1 / Sensor 2] Heater control output Heated Oxygen Sensor [Bank 1 / Sensor 2] 54 CVVT Oil Control (OCV) Valve [Bank 1 / Exhaust] control output CVVT Oil Control Valve (OCV) [Bank 1 / Exhaust] 55 Battery voltage supply after main relay Main relay 56 Battery voltage supply after main relay Main relay Connector [B] Pin No Description Connected to 1 Sensor ground Engine Coolant Temperature Sensor (ECTS) 2 Throttle position sensor (TPS) #2 signal input Throttle position sensor (TPS) #2 [ETC Module] 3 Manifold absolute pressure sensor (MAPS) signal input Manifold absolute pressure sensor (MAPS) 4 A/C Pressure Transducer (APT) signal input A/C Pressure Transducer (APT) 5 - 6 - 7 Accelerator Position Sensor (APS) #1 signal input Accelerator Position Sensor (APS) #1 8 - 9 - 10 - 11 Electric Load signal input (Defrost) A/C Control Module, Outside Mirror 12 Brake switch 1 signal input Brake lamp swtich , Brake switch 13 Heated Oxygen Sensor [Bank 1 / Sensor 2] signal input Heated Oxygen Sensor [Bank 1 / Sensor 2] 14 Battery Sensor Temperature signal input Battery sensor 15 Intake air temperature sensor (IATS) signal input Intake Air temperature sensor (IATS) 16 Battery Sensor Current Direct signal input Battery sensor 17 - 18 Accelerator Position Sensor (APS) #2 signal input Accelerator Position Sensor (APS) #2 19 - 20 - 21 - 22 Throttle position sensor (TPS) #1 signal input Throttle position sensor (TPS) #1 23 Brake Lamp Switch signal input Brake Switch 24 Start switch signal input Ignition switch 25 Sensor ground Heated Oxygen Sensor [Bank 1 / Sensor 1] 26 - 27 Sensor ground Knock sensor (KS) 28 - 29 Wheel speed sensor [B] signal input Front wheel speed sensor (RH) [Without ABS] 30 Wheel speed sensor [A] signal input Front wheel speed sensor (RH) [Without ABS] 31 - 32 Sensor ground Camshaft Position Sensor (CMPS) [Bank 1 / Intake] Camshaft Position Sensor (CMPS) [Bank 1 / Exhaust] 33 Power Ground Chassis Ground 34 Clutch Switch signal input Clutch switch [M...

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