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
― Oil pressure switch malfunction
― Global central configuration error
― Electric power steering (EPS) system malfunction (master warning light only)
― Current sensor malfunction (With i-stop system)
― i-ELOOP system malfunction (With i-ELOOP)
Functions
Master warning light
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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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Oil pressure switch error signal
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Global central configuration error signal
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Current sensor error signal (With i-stop system)
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i-ELOOP system error signal (With i-ELOOP)
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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]. (See
DRIVE-BY-WIRE CONTROL [SKYACTIV-G 2.5T].)
• The master warning light flashes in the pattern shown in the figure.
Master warning indication
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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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Oil pressure switch error signal
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Global central configuration error signal
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Current sensor error signal (With i-stop system)
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i-ELOOP system error signal (With i-ELOOP)
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Structure/Construction
• The master warning light/master warning indication is displayed in the multi-information display. (With multi-information display)
• The master warning light is built into the instrument cluster. (Without 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.)
• 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
With multi-information display
1. When the instrument cluster receives (1) each error signal via CAN communication from the PCM or electric power steering (EPS) control module, it displays the master warning indication/turns on (2) the master warning light.
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).
Fail-safe
• Not applicable
