Kia Sedona (2008 year). Manual - part 11



Repair as necessary and then go to "VERIFICATION OF VEHICLE REPAIR" procedure.  

NO  



Go to "POWER CIRCUIT INSPECTION" procedure.  

POWER SUPPLY CIRCUIT INSPECTION 

1. Engine "ON".  

2. Measure voltage between the battery terminal (+) and terminal "28" of the HECU harness connector. 

Specification: Approx. B+ 

Fig. 32: Measuring Voltage Between Battery Terminal (+) And Terminal "28" Of HECU Harness 
Connector 
Courtesy of KIA MOTORS AMERICA, INC. 

3. Is the measured voltage within specifications? 

YES  



Go to "GROUND CIRCUIT INSPECTION" procedure.  

NO  



Check for damaged harness and poor connection between the battery terminal (+) and terminal "28" 
of the HECU harness connector. Check for open or blown 10 A ABS fuse referring to "Circuit 
Diagram". Repair as necessary and then go to "VERIFICATION OF VEHICLE REPAIR" 
procedure.  

GROUND CIRCUIT INSPECTION 

Refer to DTC C1101. 

COMPONENT INSPECTION 

 

2008 Kia Sedona 

2008 BRAKES ABS (Anti-Lock Brake System) - Sedona

  

Microsoft 

 

Saturday, May 22, 2010 6:52:42 PM

Page 41 

© 2006 Mitchell Repair Information Company, LLC. 

Refer to DTC C1101. 

VERIFICATION OF VEHICLE REPAIR 

Refer to DTC C1101. 

DTC C1200 FL WHEEL SPEED SENSOR-OPEN/SHORT; DTC C1203 FR WHEEL SPEED SENSOR-
OPEN/SHORT; DTC C1206 RL WHEEL SPEED SENSOR-OPEN/SHORT; DTC C1209 RR WHEEL 
SPEED SENSOR-OPEN/SHORT 

COMPONENT LOCATION 

Fig. 33: Wheel Speed Sensor Location 
Courtesy of KIA MOTORS AMERICA, INC. 

GENERAL DESCRIPTION 

The wheel speed sensor is the essential component the ABS ECU uses to calculate vehicle speed and to 
determine whether wheel lock occurs. For example, rear wheel speed signal is used as a reference value, for 
vehicle speed, in front wheel drive vehicles, and if a difference between front and rear wheel speed occurs, then 
ABS control is performed. Wheel speed sensor is active hall-sensor type and good at temperature and noise 
characteristic. Digital waveform is produced as tone wheel rotate according as hall sensor principle. Frequency 
of duty waveform is changed in proportion to rotation of tone wheel and HECU calculate vehicle speed by this 
frequency. 

DTC DESCRIPTION 

The ABS ECU monitors the wheel speed sensor circuit continuously. A direct current is supplied in the wheel-
speed sensor by a power source in the input amplifier of the control unit. If the WSS circuit is broken, in that 
case a fault is detected by detecting abnormal input current. HECU cuts off the voltage supply to wheel sensor 
channel which had a fault and prevent vehicle's damage due to super heated harness. If one or more defects has 
detected, DTC code of defected wheel will be stored. Mutual short between sensors is detected by executing 
self diagnosis successively at corresponding wheel when ignition ON. Warning lamp is turned OFF unless 
additional faults are detected when the IG KEY is turned ON again. 

DTC DETECTING CONDITION 

 

2008 Kia Sedona 

2008 BRAKES ABS (Anti-Lock Brake System) - Sedona

  

Microsoft 

 

Saturday, May 22, 2010 6:52:42 PM

Page 42 

© 2006 Mitchell Repair Information Company, LLC. 

DTC DETECTING CONDITION CHART

Item

Detecting Condition

Possible cause

DTC strategy



Voltage monitoring  



Open or short of 
Wheel speed 
sensor circuit  



Inoperative 
Wheel speed 
sensor  



Inoperative 
HECU  

Case1

Monitoring Period



Once after power up.  

Enable Conditions



Shorts between WSS lines and 
shorts to UZ can be detected by 
switching single WSS channels 
in sequence. If there is an error 
after end of test, a failure is 
recognized.  

Case2

Monitoring Period



Continuous  

Enable Conditions



When the sensor current levels 
are out of permissible range 
(LOW: 7 mA, HIGH: 14 mA) 
for 200 ms.  



Sensor failure outside of the 
ABS control cycle 

1. Only one wheel failure: 

Only the ABS/ESC 
functions are inhibited. 
The ABS/ESC warning 
lamps are activated and 
the EBD warning lamp is 
not activated.  

2. Two wheels failure: Only 

the ABS/ESC functions 
are inhibited. The 
ABS/ESC warning lamps 
are activated and the 
EBD warning lamp is not 
activated.  

3. More than 3 wheels 

failure: System down. 
The ABS/EBD/ESC 
functions are inhibited. 
The ABS/EBD/ESC 
warning lamps are 
activated.  



Sensor failure inside the ABS 
control cycle 

1. One front wheel failure: 

Inhibit the ABS/ESC 
control. Pressure is 

 

2008 Kia Sedona 

2008 BRAKES ABS (Anti-Lock Brake System) - Sedona

  

Microsoft 

 

Saturday, May 22, 2010 6:52:42 PM

Page 43 

© 2006 Mitchell Repair Information Company, LLC. 

MONITOR SCAN TOOL DATA 

1. Engine "ON".  

2. Connect scan tool to Data Link Connector (DLC).  

3. Start and drive vehicle in gear and maintain vehicle speed at or above 10km/h(6 mph)  

4. Monitor the "Wheel speed sensor" parameter on the scan tool. 

Specification: Approx. 10 km/h or more (6 mph or more)

Fail Safe

increased on a front 
wheel, Pressure is 
decreased on a rear 
wheel. After the 
ABS/ESC control, the 
ABS/ESC functions are 
inhibited. The ABS/ESC 
warning lamps are 
activated and the EBD 
warning lamp is not 
activated.  

2. Two wheels failure: 

Inhibit the ABS/ESC 
control. Pressure is 
increased on a front 
wheel, Pressure is 
decreased on a rear 
wheel. After the 
ABS/ESC control, the 
ABS/ESC functions are 
inhibited. The ABS/ESC 
warning lamps are 
activated and the EBD 
warning lamp is not 
activated.  

3. More than 3 wheels 

failure: System down. 
The ABS/EBD/ESC 
functions are inhibited. 
The ABS/EBD/ESC 
warning lamps are 
activated.  

 

2008 Kia Sedona 

2008 BRAKES ABS (Anti-Lock Brake System) - Sedona

  

Microsoft 

 

Saturday, May 22, 2010 6:52:42 PM

Page 44 

© 2006 Mitchell Repair Information Company, LLC.