NO.2 ANY OF THE FOLLOWING LIGHTS remain ON: (ABS WARNING LIGHT, BRAKE SYSTEM WARNING LIGHT, DSC INDICATOR LIGHT AND/OR DSC OFF LIGHT)


BHE040343000W13

2

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

[TROUBLESHOOTING HINTS]

• Brake fluid amount is low

• Parking brake does not release

• No connection at DSC HU/CM connector

(When DSC HU/CM connector is disconnected, ABS warning light and BRAKE system warning light illuminate)

• DSC HU/CM detected malfunction (Input and output device malfunction)

• DSC HU/CM detects low voltage in power supply

• DSC HU/CM ground malfunction

(When DSC HU/CM ground is not securely connected, ABS warning light and BRAKE system warning light illuminate but diagnostic trouble code does not displayed)

• DSC HU/CM does not operate (DSC HU/CM malfunction)

Diagnostic procedure

STEP

INSPECTION

ACTION

1

INSPECT BRAKE FLUID AMOUNT AND VERIFY THAT PARKING BRAKE RELEASES

• Is the brake fluid amount normal?
• Is the parking brake lever released?
Yes
Go to the next step.
No
Add brake fluid or release parking brake lever.
2

INSPECT DTCS IN DSC HU/CM

• Inspect the DTC for the DSC ON-BOARD DIAGNOSTIC SYSTEM.
• Have DTCs been stored in memory?
Yes
Perform inspection using appropriate DTC.
(See DTC Table.)
No
Go to the next step.
3

INSPECT WHETHER MALFUNCTION IS IN CONTROL MODULE CONNECTOR, TERMINAL OR OTHER

• Do ABS warning light and BRAKE system warning light go off after 4 s when the ignition switch is turned to the ON position?
Yes
Temporary poor connection in control module connector.
Inspect DSC HU/CM connector, then go to Step 6.
Inspect DSC HU/CM connector terminal, then go to Step 7.
No
Go to the next step.
4

INSPECT BATTERY

• Is the battery voltage normal?
Yes
Go to the next step.
No
Inspect the battery and charging system.
5

INSPECT CHARGING SYSTEM

• Is the battery voltage normal with electrical load (A/C, headlight, etc.) on and engine idling?
Yes
Go to the next step.
No
Inspect the charging system (drive belt tension, generator, etc.).
6

VERIFY THAT DSC HU/CM CONNECTOR IS CONNECTED

• Is the DSC HU/CM securely connected?
Yes
Go to the next step.
No
Connect the DSC HU/CM connector securely, then Go to the next step.
7

VERIFY THAT DSC HU/CM CONNECTOR TERMINAL OR RELATED CONNECTOR TERMINALS ARE CONNECTED

• Are DSC HU/CM connector terminal or instrument cluster connector terminal etc. related connector terminals securely connected?
Yes
Replace the DSC HU/CM.
No
Securely connect the DSC HU/CM connector terminal and related connector terminals.