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 with the ignition switched ON:
•  ABS warning light
•  Brake system warning light
•  TCS/DSC indicator light
•  TCS OFF indicator light (without Off-road traction assist)
•  Off-road traction assist indicator light (with Off-road traction assist)
2
Any of the following lights remain illuminated:
•  ABS warning light
•  TCS/DSC indicator light
•  TCS OFF indicator light (without Off-road traction assist)
•  Off-road traction assist indicator light (with Off-road traction assist)
3
Brake system warning light stay on
4
A malfunction in the system even though the ABS warning light, brake system warning light, TCS/DSC indicator light and TCS OFF indicator light (without Off-road traction assist)/Off-road traction assist indicator light (with Off-road traction assist) 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
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

×: Applied

Troubleshooting item

1

2

3

4

5

6

7

8

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

•  ABS warning light
•  Brake system warning light
•  TCS/DSC indicator light
•  TCS OFF indicator light (without Off-road traction assist)
•  Off-road traction assist indicator light (with Off-road traction assist)

Any of the following lights remain illuminated:

•  ABS warning light
•  TCS/DSC indicator light
•  TCS OFF indicator light (without Off-road traction assist)
•  Off-road traction assist indicator light (with Off-road traction assist)

Brake system warning light stay on

A malfunction in the system even though the ABS warning light,

brake system warning light,

TCS/DSC indicator light and

TCS OFF indicator light (without Off-road traction assist)/

Off-road traction assist indicator light (with Off-road traction assist) are not illuminated

ABS or TCS*1 operates frequently

TCS does not work correctly

DSC*2 operates frequently

DSC does not work correctly

TCS/DSC indicator light flashes

(when neither the TCS nor the DSC are operating)

Hill launch assist (HLA) operates even on a downhill

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

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

*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