| TIBURON(GK) >2005 > G 2.7 DOHC > Brake System > ABS(Anti-Lock Brake System)>Troubleshooting |

TROUBLESHOOTING
STANDARD FLOW OF DIAGNSTIC TROUBLESHOOTING
NOTES WITH REGARD TO DIAGNOSIS The phenomena listed in the following table are not abnormal.
Phenomenon | Explanation
System check sound | When starting the engine, a thudding sound can sometimes be heard coming from inside the engine compartment. This is because the system operation check is being performed.
ABS operation sound |
1. | Sound of the motor inside the ABS hydraulic unit operation (whine).
2. | Sound is generated along with vibration of the brake pedal (scraping).
3. | When ABS operates, sound is generated from the vehicle chassis due to repeated brake application and release (Thump : suspension; squeak: tires)
ABS operation (Long braking distance) | For road surfaces such as snow-covered and gravel roads, the braking distance for vehicles with ABS can sometimes be longer than that for other vehicles. Accordingly, advise the customer to drive safely on such roads by lowering the vehicle speed.
Diagnosis detection conditions can vary depending on the diagnosis code. When checking the trouble symptom after the diagnosis code has been erased, ensure that the requirements listed in "Comment" are met.
ABS CHECK SHEET PROBLEM SYMPTOMS TABLE
Symptom | Suspect Area | See page
ABS does not operate. | Only when 1. -4. are all normal and the problem is still occurring, replace the HECU.
1. | Check the DTC reconfirming that the normal code is output.
2. | Power source circuit.
3. | Speed sensor circuit.
4. | Check the hydraulic circuit for leakage.
| BR - 75
ABS does not operate intermittently. | Only when 1. -4. are all normal and the problem is still occurring, replace the ABS actuator assembly.
1. | Check the DTC reconfirming that the normal code is output.
2. | Wheel speed sensor circuit.
3. | Stop lamp switch circuit.
4. | Check the hydraulic circuit for leakage.
| BR - 77
Communication with Hi-scan (pro) is not possible. (Communication with any system is not possible) |
1. | Power source circuit
2. | Diagnosis line
| BR - 79
Communication with Hi-scan (pro) is not possible. (Communication with ABS only is not possible) |
1. | Power source circuit
2. | Diagnosis line
3. | HECU
| BR - 80
When ignition key is turned ON (engine OFF), the ABS warning lamp does not light up. |
1. | ABS warning lamp circuit
2. | HECU
| BR - 81
Even after the engine is started, the ABS warning lamp remains ON. |
1. | ABS warning lamp circuit
2. | HECU
| BR - 82
Brake warning lamp is abnormal. |
1. | Brake oil level sensor
2. | Parking brake switch
3. | Brake warning lamp circuit
| BR - 83
During ABS operation, the brake pedal may vibrate or may not be able to be depressed. Such phenomena are due to intermittent changes in hydraulic pressure inside the brake line to prevent the wheels from locking and is not an abnormality.
BLEEDING OF BRAKE SYSTEM This procedure should be followed to ensure adequate bleeding of air and filling of the ABS unit, brake lines and master cylinder with brake fluid.
1. | Remove the reservoir cap and fill the brake reservoir with brake fluid.
If there is any brake fluid on any painted surface, wash it off immediately.
When pressure bleeding, do not depress the brake pedal. Recommended fluid........ DOT3 or DOT4
2. | Connect a clear plastic tube to the wheel cylinder bleeder plug and insert the other end of the tube into a half filled clear plastic bottle.
3. | Connect the hi-scan (pro) to the data link connector located underneath the dash panel.
4. | Select and operate according to the instructions on the hi-scan (Pro) screen.
You must obey the maximum operating time of the ABS motor with the hi-scan (Pro) to prevent the motor pump from burning.
(1) | Select hyundai vehicle diagnosis.
(2) | Select vehicle name.
(3) | Select Anti-Lock Brake system.
(4) | Select air bleeding mode.
(5) | Press "YES" to operate motor pump and solenoid valve.
(6) | Wait 60 sec. before operating the air bleeding. (If not, you may damage the motor.)
5. | Pump the brake pedal several times, and then loosen the bleeder screw until fluid starts to run out without bubbles. Then close the bleeder screw.
6. | Repeat step 5 until there are no more bubbles in the fluid for each wheel.
7. | Tighten the bleeder screw.
Bleed screw tightening torque: 7~13 Nm (70 ~130 kg•cm, 5.1 ~ 9.5 lb•ft)
DIAGNOSTIC TROUBLE CODE CHART(DTC) ●:ON ○:OFF
DTC No. | Detection Item | Warning Lamp(On/Off) | Page
EBD | ABS | ESP |
C1101 | Battery voltage high | ● | ● | ● |
C1102 | Battery voltage low | ○/● | ● | ● |
C1112 | Sensor power voltage | ○ | ○ | ● |
C1200 | Wheel speed sensor FR-LH open/short | ○/● | ● | ● |
C1201 | Wheel speed sensor FR-LH range/performance/intermittent | ○/● | ● | ● |
C1202 | Wheel speed sensor FR-LH invalid/no signal | ○/● | ● | ● |
C1203 | Wheel speed sensor FR-RH open/short | ○/● | ● | ● |
C1204 | Wheel speed sensor FR-RH range/performance/intermittent | ○/● | ● | ● |
C1205 | Wheel speed sensor FR-RH invalid/no signal | ○/● | ● | ● |
C1206 | Wheel speed sensor RR-LH open/short | ○/● | ● | ● |
C1207 | Wheel speed sensor RR-LH range/performance/intermittent | ○/● | ● | ● |
C1208 | Wheel speed sensor RR-LH invalid/no signal | ○/● | ● | ● |
C1209 | Wheel speed sensor RR-RH open/short | ○/● | ● | ● |
C1210 | Wheel speed sensor RR-RH range/performance/intermittent | ○/● | ● | ● |
C1211 | Wheel speed sensor RR-RH invalid/no signal | ○/● | ● | ● |
C1235 | Pressure sensor(primary) - electrical | ○ | ○ | ● |
C1237 | Pressure sensor(secondary) - electrical | ○ | ○ | ● |
C1259 | Steering angle sensor - electrical | ○ | ○ | ● |
C1260 | Steering angle sensor - signal | ○ | ○ | ● |
C1282 | Yaw rate & lateral G sensor - electrical | ○ | ○ | ● |
C1283 | Yaw rate & lateral G sensor - signal | ○ | ○ | ● |
C1503 | ESP switch error | ○ | ○ | ● |
C1513 | Brake switch error | ○ | ○ | ● |
C1604 | ECU hardware error | ● | ● | ● |
C1605 | CAN harware error | ○ | ○ | ● |
C1611 | CAN time-out EMS | ○ | ○ | ● |
C1612 | CAN time-out TCU | ○ | ○ | ● |
C1613 | CAN wrong message | ○ | ○ | ● |
C1616 | CAN bus off | ○ | ○ | ● |
C2112 | Valve relay error | ● | ● | ● |
C2227 | Excessive temperature of brake disc | ○ | ○ | ● |
C2380 | ABS/TCS/ESP valve error |  | ● | ● |
C2402 | Motor - electrical | ○ | ● | ● |