MASTER WARNING LIGHT/MASTER WARNING INDICATION
id092200043000
Purpose
• The master warning light/master warning indication warns the driver that any of the following malfunctions is occurring.
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― Power supply system malfunction
― Brake switch malfunction
― Engine oil solenoid valve malfunction
― Global central configuration error
― Electric power steering (EPS) system malfunction (master warning light only)
― i-ELOOP system malfunction (with i-ELOOP)
― Power brake unit malfunction (SKYACTIV-D 2.2)
― Power brake unit vacuum sensor malfunction (SKYACTIV-D 2.2)
― Vacuum pump malfunction (SKYACTIV-D 2.2)
Functions
Without multi-information display
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• The instrument cluster turns the master warning light on based on the following CAN signals:
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Signal name
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Sending module/part name
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Communication method
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Power supply system error signal
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PCM
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HS-CAN
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Brake switch No.1 error signal
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Brake switch No.2 error signal
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Engine oil solenoid valve error signal
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Global central configuration error signal
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i-ELOOP system error signal (with i-ELOOP)
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Power brake unit error signal (SKYACTIV-D 2.2)
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Power brake unit vacuum sensor error signal (SKYACTIV-D 2.2)
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Electric power steering (EPS) system error signal
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Electric power steering (EPS) control module
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• If the cancel procedure for preventing unnecessary operation of the brake override system is implemented, the PCM sends a master warning light flash request signal to the instrument cluster via CAN communication. The instrument cluster flashes the master warning light based on the master warning light flash request signal from the PCM. For the cancel procedure to prevent unnecessary operation of the brake override system, refer to [DRIVE-BY-WIRE CONTROL]/[FUEL INJECTION AMOUNT CONTROL]. (See
DRIVE-BY-WIRE CONTROL [SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See
FUEL INJECTION AMOUNT CONTROL [SKYACTIV-D 2.2].)
• The master warning light flashes in the pattern shown in the figure.
With multi-information display
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• The instrument cluster displays the master warning indication on based on the following CAN signals:
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Signal name
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Sending module/part name
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Communication method
|
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Power supply system error signal
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PCM
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HS-CAN
|
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Brake switch No.1 error signal
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Brake switch No.2 error signal
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Engine oil solenoid valve error signal
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i-ELOOP system error signal (with i-ELOOP)
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Global central configuration error signal
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Power brake unit error signal (SKYACTIV-D 2.2)
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Power brake unit vacuum sensor error signal (SKYACTIV-D 2.2)
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Structure/Construction
• The master warning light is built into the instrument cluster. (without multi-information display)
• The master warning indication is displayed in the multi-information display. (with multi-information display)
• A warning message in the center display is displayed when the warning light is turned on or flashed. For the message content and verification method, refer to the [CENTER DISPLAY]. (See
CENTER DISPLAY [WITH CENTER DISPLAY].)
• For vehicles with the multi-information display, a warning message is displayed in the multi-information display simultaneously with the master warning indication. For the message content and verification method, refer to the [MULTI-INFORMATION DISPLAY]. (See
MULTI-INFORMATION DISPLAY.)
Operation
Without multi-information display
1. The instrument cluster turns on (2) the transistor continuously when it receives (1) each error signal via CAN communication from the PCM or electric power steering (EPS) control module, and the instrument cluster turns on (2) the transistor intermittently when it receives (1) a master warning light flash request signal.
2. When the transistor is on continuously, the master warning light turns on (3), and if it turns on intermittently, the master warning light flashes (3).
With multi-information display
1. When the instrument cluster receives (1) each error signal via CAN communication from the PCM, it displays (2) the master warning indication in the multi-information display.
Fail-safe
• Not applicable
