Hyundai Santa Fe (2006 year). Manual — part 230
BR -92
BRAKE SYSTEM
DTC C1213 WHEEL SPEED FREQUENCY ERROR
COMPONENT LOCATION
E8E790AC
Refer to DTC C1200.
GENERAL DESCRIPTION
ECF51D36
Refer to DTC C1200.
DTC DESCRIPTION
E7CF6293
The ABS ECU monitors the wheel speed sensor signal continuously. This code is set, if the speed difference with adjacent
wheel is out of permissible range or the ABS control cycle is abnormal.
DTC DETECTING CONDITION
E2FEC3D0
Item
Detecting Condition
Possible cause
DTC
Strategy
• Signal motorning
Monitoring
Period
• Continous
Enable
Conditions
• When short cut between the wheel speed
sensor supply and the battery.
Case 1
Fail Safe
• Wheel speed sensor signals are not reliable.
DTC
Strategy
• Signal motorning
Monitoring
Period
• Continous
Enable
Conditions
• The monitoring reports a failure if the ABS
target slip is exceeded for a time period
>
= 10 s at one or more wheels.
- If the driver brakes or the velocity is lower than 50
km/h the detection time is enlarged to 60 s.
Case 2
Fail Safe
• Reduced function of the ESP system
• Improper installation of wheel
speed sensor
• Abnormal Rotor and wheel
bearing
• Inoperative Wheel speed
sensor
• Inoperative HECU
ABS (ANTI-LOCK BRAKE SYSTEM)
BR -93
MONITOR SCANTOOL DATA
E22D3668
1.
Engine "ON".
2.
Connect scantool to Data Link Connector(DLC).
3.
Start and drive vehicle in gear and maintain vehicle speed at or above 10 km/h(6 mph)
4.
Monitor the "Wheel Speed Sensor" parameter on the Scantool.
Specification : Compare with another parameters related to wheel speed sensor. If it is the
same as another parameters, it is in normal condition.
Fig 1) Test Condition : Drive vehicle at a speed of 50 km/h or more. (31 mph or more) Normal Data
Fig 2) Test Condition : Drive vehicle at a speed of 51 km/h or more. (31 mph or more) Abnormal Data
Fig1
Fig2
SCMBR6545L
5.
Is parameter displayed within specifications?
YES
▶
Fault is intermittent caused by poor connection in wheel speed sensor harness, Thoroughly check connectors for
looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair as necessary and
then go to "Verification Of Vehicle Repair" procedure..
NO
▶
Go to "Component Inspection" Procedure.
BR -94
BRAKE SYSTEM
COMPONENT INSPECTION
E7600A75
1.
Lift the vehicle.
2.
Ignition "ON".
3.
Turn the wheel with hand.
4.
Measure waveform between terminal "1,2" of the wheel speed sensor harness connector and chassis ground.
Specification :
High : 1.05 V , Low : 0.525 V
Compare waveforms of all wheel speed sensors.
If they have same waveform, it is in normal condition.
1. Wheel speed sensor (FL-)
2. Wheel speed sensor (RL-,RR-)
<E02>
<C274>
2
1
Approx . 0 .5 2 5 V
Approx . 1 .0 5 V
1
2
<F28>
<F29>
SCMBR6546L
5.
Is the measured waveform within specifications?
YES
▶
Fault is intermittent caused by poor connection in wheel speed sensor harness, Thoroughly check connectors
for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as
necessary and then go to "Verification Of Vehicle Repair" procedure.
▶
Substitute with a known-good HECU and check for proper operation. If problem is corrected, replace HECU and
then go to "Verification Of Vehicle Repair" procedure.
NO
▶
Check following point at wheel speed sensor which has abnormal waveform.
▶
Check for improper installation of wheel speed sensor. If NG, repair as necessary and then go to "Verification Of
Vehicle Repair" procedure.
▶
Check for damage of rotor teeth or wheel bearing. If NG, repair as necessary and then go to "Verification Of
Vehicle Repair" procedure.
▶
Substitute with a known-good Wheel speed sensor and check for proper operation. If problem is corrected, replace
Wheel speed sensor and then go to "Verification Of Vehicle Repair" procedure.
ABS (ANTI-LOCK BRAKE SYSTEM)
BR -95
VERIFICATION OF VEHICLE REPAIR
E7CF2DE4
After a repair, it is essential to verify that the fault has been corrected.
1.
Connect scantool and select "Diagnostic Trouble Codes(DTCs)" mode
2.
Using a scantool, Clear DTC.
3.
Operate the vehicle within DTC Detecting Condition in General Information. (Start and drive vehicle in gear and
maintain vehicle speed is approx. 50km/h or more(31mph or more))
4.
Are any DTCs present ?
YES
▶
Go to the applicable troubleshooting procedure.
NO
▶
System performing to specification at this time.
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст