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 do not illuminate with the ignition to ON:

•  ABS warning light

•  Brake system warning light

•  TCS/DSC indicator light

•  TCS OFF indicator light

2

Any of the following lights stay on:

•  ABS warning light

•  TCS/DSC indicator light

•  TCS OFF indicator light

3

Brake system warning light stay on

4

There is a malfunction in the system even though ABS warning light, brake system warning light, TCS/DSC indicator light and TCS OFF indicator light do not illuminate

5

ABS or TCS^*1 operates frequently

TCS does not work correctly

6

DSC^*2 operates frequently

DSC does not work correctly

7

TCS/DSC indicator light flashes (when neither the TCS nor the DSC are operating)

8

Hill launch assist (HLA) operates even on a downhill

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

9

Master warning light stay on and a message “SCBS Inspection Required” is indicated in the display

No.	Symptom
1	Any of the following lights do not illuminate with the ignition to ON: • ABS warning light • Brake system warning light • TCS/DSC indicator light • TCS OFF indicator light
2	Any of the following lights stay on: • ABS warning light • TCS/DSC indicator light • TCS OFF indicator light
3	Brake system warning light stay on
4	There is a malfunction in the system even though ABS warning light, brake system warning light, TCS/DSC indicator light and TCS OFF indicator light do not illuminate
5	ABS or TCS^*1 operates frequently
TCS does not work correctly
6	DSC^*2 operates frequently
DSC does not work correctly
7	TCS/DSC indicator light flashes (when neither the TCS nor the DSC are operating)
8	Hill launch assist (HLA) operates even on a downhill
Hill launch assist (HLA) does not operate on a slope
9	Master warning light stay on and a message “SCBS Inspection Required” is indicated in the display

X: Applied

Troubleshooting item	1	2	3	4	5	6	7	8	9
Troubleshooting item
DSC HU/CM does not operate	X	X	X
Communication error between DSC HU/CM and instrument cluster	X	X	X
DSC HU/CM internal malfunction	X	X	X						X
Instrument cluster malfunction	X	X	X
Brake fluid amount is low			X
DSC HU/CM detected malfunction (input and output device malfunction)		X	X		X	X		X	X
DSC HU/CM detects low voltage in power supply		X	X
DSC HU/CM ground malfunction	X	X	X
No connection at DSC HU/CM connector		X	X
Parking brake does not release			X					X
Parking brake switch or brake fluid level sensor stuck on			X
Short to ground in wiring harness between brake fluid level sensor and front body control module (FBCM)			X
There is a mechanical malfunction in system				X
Incorrect ABS wheel-speed signal is inputted to DSC HU/CM		X			X	X		X
There is a difference in size, air pressure or wear conditions between front and rear tires					X	X		X
There is a malfunction in engine control system (TCS malfunction)					X
Poor installation with SAS control module (yaw rate sensor, low-G sensor)						X		X
DSC HU/CM initial setting has not been performed after replacing DSC HU/CM		X				X		X
Input signal malfunction from instrument cluster (parking brake signal)			X					X
Input signal malfunction from PCM (reverse gear signal)								X
Communication error between DSC HU/CM and front body control module (FBCM)			X					X
Communication error between DSC HU/CM and PCM		X						X
Low-G sensor initialization has not been performed after replacing SAS control module		X					X	X
DSC HU/CM detects a malfunction (input/output device malfunction)		X						X
Center point of low-G sensor has deviated		X						X
PCM and/or instrument cluster detect a malfunction		X						X	X
Error input signal from PCM		X						X
Brake (foot brake/parking brake) drag								X
Laser sensor detect a malfunction									X

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

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