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

id0403b3815500

2 | Any of the following lights remain on: (ABS warning light, BRAKE system warning light, DSC indicator light and/or TCS OFF light)
Possible cause | • Brake fluid amount is low • Parking brake does not release • No connection at DSC/RSC HU/CM connector (When HU/CM connector is disconnected, ABS warning light and BRAKE system warning light illuminate) • DSC/RSC HU/CM detected malfunction (Input and output device malfunction) • DSC/RSC HU/CM detects low voltage in power supply • DSC/RSC HU/CM ground malfunction (When DSC/RSC HU/CM ground is not securely connected, ABS warning light and BRAKE system warning light illuminate but diagnostic trouble code does not displayed) • DSC/RSC HU/CM does not operate (DSC/RSC 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 pedal released? | Yes | Go to the next step.
No | Add brake fluid or release parking brake pedal.
2 | INSPECT DTCS IN INSTRUMENT CLUSTER • Inspect the DTC for the instrument cluster ON-BOARD DIAGNOSTIC SYSTEM. • Has DTC U2064 been recorded in memory? | Yes | Go to the next step.
No | Inspect the instrument cluster. (See INSTRUMENT CLUSTER INSPECTION.)
3 | INSPECT DTCS IN DSC/RSC HU/CM • Inspect the DTC for the ON-BOARD DIAGNOSTIC SYSTEM. • Have DTCs been stored in memory? | Yes | Perform inspection using appropriate DTC. (See ON-BOARD DIAGNOSIS [DSC/RSC].)
No | Go to the next step.
4 | INSPECT WHETHER MALFUNCTION IS IN CONTROL MODULE CONNECTOR, TERMINAL OR OTHER • Do the ABS warning light and BRAKE system warning light go out after 4 s when the ignition switch is turned to the ON position? | Yes | Temporary poor connection in control module connector. Inspect DSC/RSC HU/CM connector, then go to Step 7. Inspect DSC/RSC HU/CM connector terminal, then go to Step 8.
No | Go to the next step.
5 | INSPECT BATTERY • Is the battery voltage normal? | Yes | Go to the next step.
No | Inspect the battery and charging system. (See BATTERY INSPECTION [MZI-3.7].) (See GENERATOR INSPECTION [MZI-3.7].)
6 | 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.). (See GENERATOR INSPECTION [MZI-3.7].)
7 | VERIFY THAT DSC/RSC HU/CM CONNECTOR IS CONNECTED • Is the DSC/RSC HU/CM securely connected? | Yes | Go to the next step.
No | Connect the DSC/RSC HU/CM connector securely, then go to the next step.
8 | VERIFY THAT DSC/RSC HU/CM CONNECTOR TERMINAL OR RELATED CONNECTOR TERMINALS ARE CONNECTED • Are the DSC/RSC HU/CM connector terminal or instrument cluster connector terminal etc. related connector terminals securely connected? | Yes | Replace the DSC/RSC HU/CM. (See DSC/RSC HU/CM REMOVAL/INSTALLATION [L.H.D.].) (See DSC/RSC HU/CM REMOVAL/INSTALLATION [R.H.D.].)
No | Securely connect the DSC/RSC HU/CM connector terminal and related connector terminals.