Hyundai Accent (HC): Brake System (ABS/ESC) / Troubleshooting

- Troubleshooting Problem Symptoms Table Use the table below to help you find the cause of the problem. The numbers indicate the priority of the like cause of the problem. Check each part in order.If necessary, replace these parts.

SymptomSuspect AreaReference
Lower pedal or spongy pedal1. Brake system (Fluid leaks)
2. Brake system (Air in)
3. Piston seals (Worn or damaged)
4. Rear brake shoe clearance (Out of adjustment)
5. Master cylinder (Inoperative)
repair
air·bleed
replace
adjust
replace
Brake drag1. Brake pedal free play (Minimum)
2. Parking brake lever travel (Out of adjustment)
3. Parking brake wire (Sticking)
4. Rear brake shoe clearance (Out of adjustment)
5. Pad or lining (Cracked or distorted)
6. Piston (Stuck)
7. Piston (Frozen)
8. Anchor or Return spring (Inoperative)
9. Booster system (Vacuum leaks)
10. Master cylinder (Inoperative)
adjust
adjust
repair
adjust
replace
replace
replace
replace
replace
replace
Brake pull1. Piston (Sticking)
2. Pad or lining (Oily)
3. Piston (Frozen)
4. Disc (Scored)
5. Pad or lining (Cracked or distorted)
replace
replace
replace
replace
replace
Hard pedal but brake inefficient1. Brake system (Fluid leaks)
2. Brake system (Air in)
3. Pad or lining (Worn)
4. Pad or lining (Cracked or distorted)
5. Rear brake shoe clearance (Out of adjustment)
6. Pad or lining (Oily)
7. Pad or lining (Glazed)
8. Disc (Scored)
9. Booster system (Vacuum leaks)
repair
air·bleed
replace
replace
adjust
replace
replace
replace
replace
Noise from brake1. Pad or lining (Cracked or distorted)
2. Installation bolt (Loosen)
3. Disc (Scored)
4. Sliding pin (Worn)
5. Pad or lining (Dirty)
6. Pad or lining (Glazed)
7. Anchor or Return spring (Faulty)
8. Brake pad shim (Damage)
9. Shoe hold-down spring (Damage)
replace
adjust
replace
replace
clean
replace
replace
replace
replace
Brake fades1. Master cylinder (Inoperative)replace
Brake vibration, pulsation1. Brake booster (Vacuum leaks)
2. Pedal free play
3. Master cylinder (Inoperative)
4. Caliper (Damage)
5. Master cylinder cap seal
6. Damaged brake lines
replace
adjust
replace
replace
replace
replace
Brake ChatterBrake chatter is usually caused by loose or worn components, or glazed or burnt linings. Rotors with hard spots can also contribute to brake chatter. Additional causes of chatter are out-of-tolerance rotors, brake lining not securely attached to the shoes, loose wheel bearings and contaminated brake lining.

Other information:

Hyundai Accent (HC) (2017 - 2022) Service Manual: Specifications

- Specifications Ignition System Ignition Coil ItemSpecification Rated Voltage (V)13.5 Operation Voltage (V)6 - 16 ItemSpecification Engine Speed (RPM)100020003000400050006000 Dwell Time (ms)3.43.43.42.92.72.5 Secondary Coil Voltage (kV)40 ↑40 ↑40 ↑40 ↑40 ↑38 ↑ Spark plug ItemSpecification TypeSILZKR7E9 Gap0.8 - 0.9 mm (0.

Hyundai Accent (HC) (2017 - 2022) Service Manual: Troubleshooting

- Troubleshooting Limp Home Mode Limp Home Mode features a fail-safe function that prevents dangerous situations in the event of a transmission failure. The vehicle will be driven in limp home mode if the transmission malfunctions. In this mode, the transmission operates at a minimal functionality level (fixed shifting, limited shifting, reverse, neutral), making it possible for the vehicle to reach a service center.

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