NO.12 ANY OF THE FOLLOWING LIGHTS DO NOT ILLUMINATE WITH IGNITION SWITCH ON: (ABS WARNING LIGHT, BRAKE SYSTEM WARNING LIGHT, DSC INDICATOR LIGHT AND/OR DSC OFF LIGHT)

id040300901000

12

Any of the following lights do not illuminate with ignition switch on: (ABS warning light, BRAKE system warning light, DSC indicator light and/or DSC OFF light).

[TROUBLESHOOTING HINTS]

• Inspect each light in the instrument cluster for malfunction

• Poor connection at DSC HU/CM connector

Diagnostic procedure

STEP

INSPECTION

ACTION

1
INSPECT FOR DTCS IN DSC HU/CM
• Inspect the DTC for the DSC ON-BOARD DIAGNOSTIC SYSTEM.
• Have DTCs been recorded in memory?
Yes
Perform inspection using appropriate DTC.
No
Go to next step.
2
INSPECT TO SEE WHETHER MALFUNCTION IS IN INSTRUMENT CLUSTER SYSTEM OR OTHER SYSTEM
• Do other warning and indicator lights illuminate when IG switch is turned ON?
Yes
Go to next step.
No
Inspect or repair instrument cluster (power supply system, ground system).
3
VERIFY THAT DSC HU/CM CONNECTOR IS CONNECTED
• Is DSC HU/CM securely connected?
Yes
Go to next step.
No
Connect DSC HU/CM connector securely, then go to next step.
4
VERIFY THAT DSC HU/CM CONNECTOR TERMINAL OR RELATED CONNECTOR TERMINALS ARE CONNECTED
• Are DSC HU/CM connector terminal, or instrument cluster connector terminal, or related connector terminals securely connected?
Yes
Go to next step.
No
Connect DSC HU/CM connector terminal etc. related connector terminal securely.
5
INSPECT FOR DTC IN CAN COMMUNICATION
• Reconnect all disconnected connectors.
• Clear the DTC from DSC HU/CM memory using the WDS or equivalent.
• Turn the ignition switch to ON.
• Inspect the DTC for DSC ON-BOARD DIAGNOSTIC SYSTEM.
• Is the DTC U1900 stored?
Yes
Inspect and repair CAN communication related harness or connectors.
If the harness and connectors are normal, replace DSC HU/CM.
No
Inspect and repair the instrument cluster.