BRAKE SYSTEM/ABS WARNING LIGHT

id041500108800


Purpose/Function

•  The brake system warning light turns on to alert the driver if the brake system has a malfunction when the parking brake is released.
•  The ABS warning light turns on to alert the driver if the ABS has a malfunction.

Construction

•  The brake system warning light and ABS warning light are built into the instrument cluster.
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Operation

Note
•  If the DSC system and CAN lines are normal, the brake system warning light and ABS warning light turn on when the ignition is switched ON, and turns off after approx. 3 s to check for bulb burn-out. At this time, the brake system warning light remains turned on while the parking brake is applied. However, the light turns off when the parking brake is released.
•  The DSC HU/CM disables the following controls if there is a system malfunction and the brake system warning light and ABS warning light turn on.
ABS warning light turned on:
―  ABS control disabled
ABS warning light and brake system warning light turned on:
―  ABS control and EBD control disabled
•  A warning message is indicated on the center display when the ABS warning light is turned on. For the message content and verification method, refer to the [CENTER DISPLAY] in the workshop manual.
Brake system warning light
•  The instrument cluster receives (1) a system malfunction indication request signal from the DSC HU/CM via CAN communication.
•  The instrument cluster turns the transistor on (2) based on the system malfunction indication request signal.
•  When the transistor turns on, the brake system warning light turns on (3).
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ABS warning light
•  The instrument cluster receives (1) a system malfunction indication request signal from the DSC HU/CM via CAN communication.
•  The instrument cluster turns the transistor on (2) based on the system malfunction indication request signal.
•  When the transistor turns on, the ABS warning light turns on (3).
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Fail-safe

•  Function not equipped.