MASTER WARNING LIGHT/MASTER WARNING INDICATION

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Purpose

•  The master warning light/master warning indication warns the driver that any of the following malfunctions is occurring.
―  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)

Functions


Master warning light

•  The instrument cluster turns the master warning light on based on the following CAN signals:

Signal name

Sending module/part name

Communication method
Power supply system error signal
PCM
HS-CAN
Brake switch No.1 error signal
Brake switch No.2 error signal
Oil pressure switch error signal
Global central configuration error signal
Current sensor error signal (With i-stop system)
Electric power steering (EPS) system error signal
Electric power steering (EPS) control module

•  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 [WITHOUT CYLINDER DEACTIVATION (SKYACTIV-G 2.0, SKYACTIV-G 2.5)].) (See DRIVE-BY-WIRE CONTROL [WITH CYLINDER DEACTIVATION (SKYACTIV-G 2.0, SKYACTIV-G 2.5)].)
•  The master warning light flashes in the pattern shown in the figure.
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Master warning indication

•  The instrument cluster displays the master warning indication on based on the following CAN signals:

Signal name

Sending module/part name

Communication method
Power supply system error signal
PCM
HS-CAN
Brake switch No.1 error signal
Brake switch No.2 error signal
Oil pressure switch error signal
Global central configuration error signal
Current sensor error signal (With i-stop system)


Structure/Construction

•  The master warning light/master warning indication is displayed in the multi-information display. (With multi-information display)
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•  The master warning light is built into the instrument cluster. (Without multi-information display)
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•  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

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.
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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).
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Fail-safe

•  Not applicable