– Input of signal from the wheel speed sensors attached to each wheel.
– Control of braking force.
– Failsafe function.
– Self diagnosis function.
– Interface with the external diagnosis tester.
– Brake tube length from Master cylinder port to HECU inlet port should be max. 1m
– The position should not be close to the engine block and not lower than the wheel.
– OvervoltageWhen overvoltage is detected(above 16.8 V), the ECU switches off the valve relay and shuts down the system.When voltage is returned to operating range, the system goes back to the normal condition after the initialization phase.
– UndervoltageIn the event of undervoltage(below 9.3 V), ABS control shall be inhibited and the warning lamp shall be turned on.When voltage is returned to operating range, the warning lamp is switched off and ECU returns to normal operating mode.
1.ABS Warning LampThe active ABS warning lamp indicates the selftest and failure status of the ABS. The ABS warning lamp shall be on :
– During the initialization phase after IGN ON. (continuously 3 seconds).
– In the event of inhibition of ABS functions by failure.
– During diagnostic mode.
– When the ECU Connector is separated from ECU.
2.EBD/Parking brake Warning LampThe active EBD warning lamp indicates the selftest and failure status of the EBD. However, in case the Parking Brake Switch is turned on, the EBD warning lamp is always turned on regardless of EBD functions.The EBD warning lamp shall be on:
– During the initialization phase after IGN ON. (continuously 3 seconds).
– When the Parking Brake Switch is ON or brake fluid level is low.
– When the EBD function is out of order.
– During diagnostic mode.
– When the ECU Connector is separated from ECU.
1.Normal Braking without ABS
Inlet valve (IV) | Outlet valve (OV) | Return pump | |
Operation | Open | Close | OFF |
• IV : Inlet Valve
• OV : Outlet Valve
• RL : Rear left wheel
• FR : Front right wheel
• FL : Front left wheel
• RR : Rear right wheel
• RP : Return pump
2.Decrease Mode
Inlet valve (IV) | Outlet valve (OV) | Return pump | |
Operation | Close | Open | ON (Motor speed control) |
• IV : Inlet Valve
• OV : Outlet Valve
• RL : Rear left wheel
• FR : Front right wheel
• FL : Front left wheel
• RR : Rear right wheel
• RP : Return pump
3.Hold Mode
Inlet valve (IV) | Outlet valve (OV) | Return pump | |
Operation | Close | Close | ON (Motor speed control) |
• IV : Inlet Valve
• OV : Outlet Valve
• RL : Rear left wheel
• FR : Front right wheel
• FL : Front left wheel
• RR : Rear right wheel
• RP : Return pump
4.Increase Mode
Inlet valve (IV) | Outlet valve (OV) | Return pump | |
Operation | Open | Close | ON (Motor speed control) |
• IV : Inlet Valve
• OV : Outlet Valve
• RL : Rear left wheel
• FR : Front right wheel
• FL : Front left wheel
• RR : Rear right wheel
• RP : Return pump
Hyundai Accent (HC) (2017 - 2022) Service Manual: Blower Unit
- Component Location 1. Blower unit assembly - Components 1. Seal2. Intake duct case3. Intake actuator4. Intake door5. Intake lower case6. Blower upper case7. Blower unit pad8. Blower lower case9. Blower motor10. Air filter11. Air filter cover12. PWM Blower module - Replacement When prying with a flat-tip screwdriver or use a prying trim tool, wrap it with protective tape, and apply protective tape around the related parts, to prevent damage.Hyundai Accent (HC) (2017 - 2022) Service Manual: Specifications
- Specifications Front Suspension ItemSpecification Suspension typeMac Pherson Strut Shock absorberTypeGeneral Valve Rear Suspension ItemSpecification Suspension type Couple Torsion Beam Axle Shock absorberTypeGeneral Valve Wheel & Tire ItemSpecification WheelAluminum5.5J * 15 6.5J * 17 Steel5.5J * 15 Tire 185/65 R15 205/45 R17 Spare tire T125/80 R15 Tire pressure kg/cm² (psi)185/65 R15 230 (33) 205/45 R17230 (33 ) T125/80 R15420 (60) Wheel Alignment ItemSpecification FrontToe-in Total0.