SYMPTOM TROUBLESHOOTING [DYNAMIC STABILITY CONTROL (DSC)]

id0403b2804200

• Verify the symptoms, and perform troubleshooting according to the appropriate number.

No.

Symptom

1

Any of the following lights are not illuminated when the ignition is switched ON:

•  ABS warning light

•  Brake system warning light

•  TCS/DSC indicator light

•  DSC OFF indicator light

2

Any of the following lights remain illuminated:

•  ABS warning light

•  TCS/DSC indicator light

•  DSC OFF indicator light

3

Brake system warning light remains illuminated

4

A malfunction in the system even though the ABS warning light, brake system warning light, TCS/DSC indicator light and DSC OFF indicator light are not illuminated

5

ABS or TCS^*1 operates frequently

TCS does not work correctly

6

DSC^*2 operates frequently

DSC does not work correctly

7

Hill launch assist (HLA) operates even on a down slope

Hill launch assist (HLA) does not operate on a slope

No.	Symptom
1	Any of the following lights are not illuminated when the ignition is switched ON: • ABS warning light • Brake system warning light • TCS/DSC indicator light • DSC OFF indicator light
2	Any of the following lights remain illuminated: • ABS warning light • TCS/DSC indicator light • DSC OFF indicator light
3	Brake system warning light remains illuminated
4	A malfunction in the system even though the ABS warning light, brake system warning light, TCS/DSC indicator light and DSC OFF indicator light are not illuminated
5	ABS or TCS^*1 operates frequently
TCS does not work correctly
6	DSC^*2 operates frequently
DSC does not work correctly
7	Hill launch assist (HLA) operates even on a down slope
Hill launch assist (HLA) does not operate on a slope

X: Applied

Troubleshooting item	1	2	3	4	5	6	7
Troubleshooting item
DSC HU/CM does not operate	X	X	X
Communication error between DSC HU/CM and instrument cluster	X	X					X
Instrument cluster malfunction	X		X				X
DSC HU/CM internal malfunction	X
No connection at DSC HU/CM		X	X
DSC HU/CM detected malfunction (input and output device malfunction).		X	X			X	X
DSC HU/CM detected low voltage in power supply		X	X
DSC HU/CM ground malfunction		X	X
PCM detected malfunction		X					X
Communication error between DSC HU/CM and PCM		X					X
Communication error between DSC HU/CM and EPS control module		X
After replacing DSC HU/CM and SAS control module , the DSC related parts sensor initialization has not been performed		X				X	X
Non-completion of module configuration		X
Parking brake switch signal error input to instrument cluster			X
Brake fluid level sensor signal error input to body control module (BCM)			X
Brake fluid amount is low			X
Parking brake does not release			X
Mechanical malfunction in system				X
Difference in size, condition or air pressure between front and rear tires					X	X
Incorrect ABS wheel-speed signal is input to DSC HU/CM					X		X
Malfunction in engine control system (TCS malfunction)					X
Poor installation with SAS control module (yaw rate sensor, low-G sensor)						X	X
Center point of low-G sensor has deviated							X
Input signal malfunction from PCM							X
Input signal malfunction from instrument cluster							X
Input signal malfunction from TCM							X
Brake (foot brake/parking brake drag)							X
Laser sensor internal malfunction

*1 :DSC system function contains traction control function, TCS/DSC indicator light turns on and off while TCS operates

*2 :TCS/DSC indicator light turns on and off while DSC operates