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. |
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)
|
|
BR -
79
|
Communication
with Hi-scan (pro) is not possible. (Communication with ABS only is not
possible)
|
|
BR -
80
|
When ignition key
is turned ON (engine OFF), the ABS warning lamp does not light
up.
|
1. |
ABS warning lamp
circuit |
|
BR -
81
|
Even after the
engine is started, the ABS warning lamp remains ON.
|
1. |
ABS warning lamp
circuit |
|
BR -
82
|
Brake warning
lamp is abnormal.
|
1. |
Brake oil level
sensor |
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. |
(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
|
○
|
●
|
●
|
|