MASTER WARNING LIGHT

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Purpose

Type A instrument cluster

• The master warning light warns the driver that the instrument cluster has received a message from a related unit.

Type B instrument cluster

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

― Brake switch malfunction

― Engine oil solenoid valve malfunction

― Global central configuration malfunction

― 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)

Function

Type A instrument cluster

• When the instrument cluster receives a message request signal from the related unit, the master warning light illuminates.

• The master warning light illuminates and the displayed messages in the multi-information display are as follows:

Multi-information display

Related unit

Reference/function

PCM

(See i-ELOOP [i-ELOOP].)

EPS CM

(See POWER STEERING MALFUNCTION INDICATOR LIGHT.)

Start stop unit (Keyless entry system/advanced keyless entry system)

(See KEYLESS ENTRY SYSTEM.)

(See ADVANCED KEYLESS ENTRY SYSTEM.)

4WD control module

(See 4WD WARNING LIGHT.)

PCM

(See DIESEL PARTICULATE FILTER INDICATOR LIGHT [SKYACTIV-D 2.2].)

TCM

(See AUTOMATIC TRANSAXLE WARNING LIGHT [FW6A-EL].)

(See AUTOMATIC TRANSAXLE WARNING LIGHT [GW6A-EL, GW6AX-EL].)

PCM

(See GENERATOR CONTROL [SKYACTIV-G 2.0, SKYACTIV-G 2.5].)

(See GENERATOR CONTROL [SKYACTIV-D 2.2].)

PCM (Brake switch malfunction)

(See FUEL INJECTION AMOUNT CONTROL [SKYACTIV-D 2.2].)

(See DRIVE-BY-WIRE CONTROL [SKYACTIV-G 2.0, SKYACTIV-G 2.5].)

PCM

(See ON-BOARD DIAGNOSTIC SYSTEM TEST MODE [SKYACTIV-G 2.0, SKYACTIV-G 2.5].)

(See ON-BOARD DIAGNOSTIC SYSTEM TEST MODE [SKYACTIV-D 2.2].)

Multi-information display	Related unit	Reference/function
	PCM	(See i-ELOOP [i-ELOOP].)
	EPS CM	(See POWER STEERING MALFUNCTION INDICATOR LIGHT.)
	Start stop unit (Keyless entry system/advanced keyless entry system)	(See KEYLESS ENTRY SYSTEM.) (See ADVANCED KEYLESS ENTRY SYSTEM.)
	4WD control module	(See 4WD WARNING LIGHT.)
	PCM	(See DIESEL PARTICULATE FILTER INDICATOR LIGHT [SKYACTIV-D 2.2].)
	TCM	(See AUTOMATIC TRANSAXLE WARNING LIGHT [FW6A-EL].) (See AUTOMATIC TRANSAXLE WARNING LIGHT [GW6A-EL, GW6AX-EL].)
	PCM	(See GENERATOR CONTROL [SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See GENERATOR CONTROL [SKYACTIV-D 2.2].)
	PCM (Brake switch malfunction)	(See FUEL INJECTION AMOUNT CONTROL [SKYACTIV-D 2.2].) (See DRIVE-BY-WIRE CONTROL [SKYACTIV-G 2.0, SKYACTIV-G 2.5].)
	PCM	(See ON-BOARD DIAGNOSTIC SYSTEM TEST MODE [SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See ON-BOARD DIAGNOSTIC SYSTEM TEST MODE [SKYACTIV-D 2.2].)

• 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 as a CAN signal. The instrument cluster flashes the master warning light based on the master warning light flash request signal sent from the PCM. For the cancel procedure to prevent unnecessary operation of the brake override system, refer to the [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 flashing pattern is as indicated in the figure.

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Type B instrument cluster

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

― Brake switch No.1 error signal, brake switch No.2 error signal, engine oil solenoid valve error signal, current sensor error signal, power supply system error signal, power brake unit error signal (SKYACTIV-D 2.2), power brake unit vacuum sensor error signal (SKYACTIV-D 2.2), and global central configuration error signal, sent from the PCM

Note

• There are warning lights which are illuminated/flashed simultaneously when the master warning light is illuminated. For the warning lights which are illuminated/flashed simultaneously when the master warning light is illuminated, refer to the [ON-BOARD DIAGNOSTIC SYSTEM TEST MODE]. (See ON-BOARD DIAGNOSTIC SYSTEM TEST MODE [SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See ON-BOARD DIAGNOSTIC SYSTEM TEST MODE [SKYACTIV-D 2.2].)

• The master warning light flashing pattern is as indicated in the figure.

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Construction

• The instrument cluster microcomputer controls the illumination/flashing/turning off of the master warning light based on each error signal sent from the PCM or a message request signal (Type A only) from the related system.

• The master warning light is set in the instrument cluster.

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Operation

1. When the ignition is switched ON (engine off or on), the instrument cluster receives (1) each error signal or a master warning light flash request signal from the PCM, or a message request signal (Type A only) from the related unit.

2. The instrument cluster turns the transistor on (2) intermittently for flashing and continuously for illumination based on each signal.

3. The master warning light flashes (3) when the transistor is turned on intermittently, and it illuminates (3) when the transistor is turned on continuously.

Type A instrument cluster

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Type B instrument cluster

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Fail-safe

• Function not equipped.