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.