Kia Sedona (2008 year). Manual - part 21

deviation between 
measured yaw rate and 
the reference yaw rate 
calculated from SAS, 
lateral G sensor and 
wheel speed sensor. 
Failure threshold is 7.5 
°/s  



Inoperative Yaw 
Rate & Lateral G 
sensor  



Open or short of 
Yaw Rate & 
Lateral G sensor  

Case 6

Monitoring Period



After every standstill.  

Enable Conditions



The measured yaw rate and 
the model yaw rates, 
calculated from the wheel 
speed sensor and SAS are 
compared. If the signals 
doesn't fit and forward 
driving is recognized, a fault 
is determined.  

Case 7

Monitoring Period



Continuous (after 
initialization of the YRS and 
if no under voltage is 
detected)  

Enable Conditions



The yaw rate sensor BITE 
logic evaluates the BITE-
signal by extraction of the 
measured yaw rate of the 
vehicle. The allowed range 
for the BITE-signal is 25 °/s 
± 7 °/s. If the BITE-signal is 
not in the allowed range, a 
suspected failure bit is set 
after 200 ms. A failure is set 
within 400 ms.  

Case 8

Monitoring Period



After YRS-initialization, no 
under voltage  

Enable Conditions



Depending on the driving 
conditions a signal gradient 
higher than 10-23 °/s / 40 ms 
sets a suspected failure bit 
after 280 ms, unless a single 
signal peak is recognized by 
a peak filter. A failure is set, 
if the good check is not 
settled successfully after 10 
s.  

Monitoring Period

 

2008 Kia Sedona 

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

  

Microsoft 

 

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MONITOR SCAN TOOL DATA 

Refer to DTC C1282. 

TERMINAL & CONNECTOR INSPECTION 

Refer to DTC C1102. 

SIGNAL CIRCUIT INSPECTION 

1. Ignition "ON" & Engine "OFF".  

2. Measure voltage between terminal "3, 5, 6" of the Yaw Rate & Lateral G sensor harness connector and 

chassis ground. 

Case 9



Continuous (except spinning, 
use of hand brake, unsteady 
driving conditions or a 
detected under voltage)  



Inoperative 
HECU  

Enable Conditions



During standstill 



The allowed range of 
the yaw rate sensor 
signal is ±30 °s. 
Leaving this range for 
5 s sets a fault. In case 
of driving off after the 
failure was present for 
longer than 500 ms 
during standstill, the 
fault is detected 
immediately.  



While driving 



The allowed range of 
the yaw rate sensor 
signal is ±94.75 °s and 
a suspected failure bit 
is set, if the signal is 
out of this range for 
500 ms. A fault is set 
after 1 s.  

Fail Safe



Reduced controller function.  



Inhibit the ESC control and 
ABS/EBD control is 
available.  



The ESC warning lamps are 
activated.  

 

2008 Kia Sedona 

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

  

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Specification: Approx. 2.5V ( Voltage between terminal "5,6" of the Yaw Rate & Lateral G sensor 
harness connector and chassis ground.) 

Specification: Approx. above 2.1V and below 2.9V ( Voltage between terminal "3" of the Yaw Rate & 
Lateral G sensor harness connector and chassis ground.) 

Fig. 52: Measuring Voltage Between Terminal Yaw Rate Lateral Sensor Harness Connector And 
Chassis Ground 
Courtesy of KIA MOTORS AMERICA, INC. 

3. Is the measured voltage within specifications? 

YES  



Go to "SELF TEST CIRCUIT INSPECTION" procedure.  

NO  



Check for open or short in the Yaw Rate & Lateral G sensor harness between terminal "3, 5, 6" of 
the Yaw Rate & Lateral G sensor harness connector and terminal "16, 18, 20" of the chassis 
ground. Repair as necessary and then go to "VERIFICATION OF VEHICLE REPAIR" 
procedure.  



If OK, Substitute with a known-good Yaw Rate & Lateral G sensor and check for proper operation. 
If problem is corrected, replace sensor and then go to "VERIFICATION OF VEHICLE 
REPAIR" procedure.  

COMPONENT INSPECTION 

Refer to DTC C1282. 

VERIFICATION OF VEHICLE REPAIR 

Refer to DTC C1101. 

DTC C1503 TCS/ESC SWITCH ERROR 

COMPONENT LOCATION 

 

2008 Kia Sedona 

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

  

Microsoft 

 

Saturday, May 22, 2010 6:52:42 PM

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Fig. 53: Identifying TCS/ESC Switch 
Courtesy of KIA MOTORS AMERICA, INC. 

GENERAL DESCRIPTION 

The driver can deactivate ESC by pressing the ESC switch. The HECU will then activate the ESC warning lamp 
and deactivate ESC functions. If the ESC switch is pressed again, ESC functions are restored. 

DTC DESCRIPTION 

Trouble code is set when the condition that the level of ESC switch is high for 60sec. When the ESC switch 
failure is set there is no signal in the warning lamp and ABS/EBD control is available. 

DTC DETECTING CONDITION 

DTC DETECTING CONDITION CHART 

TERMINAL & CONNECTOR INSPECTION 

Refer to DTC C1102. 

POWER SUPPLY CIRCUIT INSPECTION 

1. Ignition "ON" & Engine "OFF" & ESC Switch "ON". 

Item

Detecting Condition

Possible cause

DTC strategy



Short circuit monitoring  



Open or short ESC switch  



Inoperative ESC switch  

Monitoring Period



Continuous  

Enable Conditions



When the ESC switch is ON 
for 60 sec.  

Fail Safe



ABS/EBD control is 
available. Meanwhile, stop 
checking the ESC switch 
failure under the ESC 
control.  

 

2008 Kia Sedona 

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

  

Microsoft 

 

Saturday, May 22, 2010 6:52:42 PM

Page 84 

© 2006 Mitchell Repair Information Company, LLC.