Symptom Troubleshooting

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

SYMPTOM TROUBLESHOOTING DESCRIPTION

No.	Symptom
1	Any of the following lights do not illuminate with switch the ignition to ON: ABS warning light Brake system warning light TCS/DSC indicator light DSC OFF indicator light
2	Any of the following lights stay on: ABS warning light Brake system warning light TCS/DSC indicator light DSC OFF indicator light
3	There is a malfunction in the system even though ABS warning light, brake system warning light, TCS/DSC indicator light and DSC OFF indicator light do not illuminate
4	ABS or TCS*1 operates frequently
4	TCS does not work correctly
5	DSC*2 operates frequently
5	DSC does not work correctly

X: Applied

TROUBLESHOOTING PART DESCRIPTION

Troubleshooting item

Any of the following lights do not illuminate with switch the ignition to ON: (ABS warning light, brake system warning light, TCS/DSC indicator light and/or DSC OFF indicator light)

Any of the following lights stay on: (ABS warning light, brake system warning light, TCS/DSC indicator light and/or DSC OFF indicator light)

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

ABS or TCS⁽¹⁾ operates frequently/TCS does not work correctly

DSC⁽²⁾ operates frequently/DSC does not work correctly

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

Parking brake does not release.

Parking brake switch or brake fluid level sensor stuck on.

Short to ground in wiring harness between brake fluid level sensor and BCM

Short to ground in wiring harness between parking brake switch and BCM

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 (XY) sensor) and/or steering angle sensor

DSC HU/CM initial setting has not been performed after replacing DSC HU/CM.

Steering angle sensor initialization has not been performed after replacing steering angle sensor.

Non-completion of module configuration

Input signal malfunction from BCM (parking brake signal/reverse gear signal)

Communication error between DSC HU/CM and BCM

Communication error between DSC HU/CM and PCM

Low-G (XY) 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 (XY) sensor has deviated.

PCM and BCM 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