INSTRUMENTATION/DRIVER INFO/WARNING ALARM

id304000202400


READY Indicator


Function/purpose

•  The READY indicator notifies the driver that the vehicle can be driven.


Structure/construction

•  The READY indicator is displayed on the multi-information display in the instrument cluster.
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Operation

•  After the EV system starts, the PCM sends the EV system READY ON status to the body control module via CAN communication.
•  When the body control module (BCM) receives the signal, it sends a READY indicator display request signal to the instrument cluster via CAN communication.
•  The instrument cluster displays the READY indicator on the multi-information display in the instrument cluster based on the received signal.


EV System Problem Warning Light


Function/purpose

•  If a malfunction occurs in the high voltage system, the EV system problem warning light turns on to notify the driver of the EV system malfunction.


Structure/Construction

•  The EV system problem warning light is built into the instrument cluster.
•  When the EV system problem warning light turns on, a warning message is displayed on the multi-information display in the instrument cluster according to the malfunction level. Additionally, a warning sound is activated according to the malfunction level.
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Operation

•  When the PCM detects an EV system-related malfunction, it sends the high voltage system malfunction information to the body control module (BCM) via CAN communication.
•  When the body control module (BCM) receives the signal, it sends an EV system problem warning light on request signal, a guidance display request signal according to the malfunction information, and a warning sound request signal to the instrument cluster via CAN communication.
•  The instrument cluster turns on the warning light, displays the guidance, and activates the warning sound according to these received signals.
•  The warning/guidance display/warning sound status when the EV system problem warning light is on is as follows.

Vehicle conditions

Instrument cluster

Warning light

Guidance display

Warning sound
Malfunction not affecting driving is detected
No
Malfunction affecting driving is detected
Yes
Electrical leakage detected


Lead-acid Battery Charging System Warning Light


Function/purpose

•  The lead-acid battery charging system warning light turns on when a malfunction occurs in the lead-acid battery charging system to notify the driver of the malfunction in the charging system.


Structure/construction

•  The lead-acid battery charging system warning light is built into the instrument cluster.
•  When the lead-acid battery charging system warning light turns on, a warning message is displayed on the multi-information display in the instrument cluster. Additionally, a warning sound is activated.
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Operation

•  If the PCM detects a malfunction in the lead-acid battery charging system, it sends a lead-acid battery charging system warning light on request signal to the body control module (BCM) via CAN communication.
•  When the body control module (BCM) receives the signal, it sends a lead-acid battery charging system warning light on request, a guidance display request, and a warning sound request signal to the instrument cluster via CAN communication.
•  The instrument cluster turns on the warning light, displays the guidance, and activates the warning sound according to these received signals.
•  The warning/guidance display/warning sound status when the lead-acid battery charging system warning light is on is as follows.

Vehicle conditions

Instrument cluster

Warning light

Guidance display

Warning sound
Malfunction occurred in lead-acid battery charging system
Yes


Remaining High Voltage Battery Power Warning Light


Function/purpose

•  The remaining high voltage battery power warning light turns on or flashes when the high voltage battery power is low to notify the driver that the remaining distance to full discharge has decreased.


Structure/construction

•  The remaining high voltage battery power warning light is built into the instrument cluster.
•  When the remaining high voltage battery power warning light turns on or flashes, a warning message is displayed on the multi-information display in the instrument cluster according to the high voltage battery level. Additionally, a warning sound is activated.
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Operation

•  The PCM sends the high voltage battery level to the body control module (BCM) via CAN communication. Additionally, the body control module (BCM) calculates the remaining distance to full discharge displayed in the instrument cluster.
•  The body control module (BCM) sends the remaining distance to full discharge calculation result and the remaining high voltage battery power warning light on/flash request signal, guidance display request signal, and warning sound request signal based on the high voltage battery level received from the PCM to the instrument cluster via CAN communication.
•  The instrument cluster turns on/flashes the warning light, displays the guidance, and activates the warning sound according to these received signals.
•  The warning/guidance display/warning sound status when the remaining high voltage battery power warning light is on is as follows.

Vehicle conditions

Instrument cluster

Warning light

Guidance display

Warning sound
Body control module (BCM) calculates remaining distance to full discharge as below standard
 
(ON)
Yes
High voltage battery level indication reads 0
 
(Flashing)
High voltage battery at level just before vehicle cannot be driven
High voltage battery at level where vehicle cannot be driven


Charging System Warning Light


Function/purpose

•  The charging system warning light turns on when a malfunction occurs in the high voltage battery charging system to notify the driver of the malfunction in the high voltage battery charging system.


Structure/construction

•  The charging system warning light is built into the instrument cluster.
•  When the charging system warning light turns on, a warning message is displayed on the multi-information display in the instrument cluster. Additionally, a warning sound is activated.
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Operation

•  When the PCM detects a malfunction in the high voltage battery charging system, the PCM sends a charging system warning light on request signal to the body control module (BCM) via CAN communication.
•  When the body control module (BCM) receives the signal, it sends a charging system warning light on request signal, a guidance display request signal, and a warning sound request signal to the instrument cluster via CAN communication.
•  The instrument cluster turns on the warning light, displays the guidance, and activates the warning sound according to these received signals.
•  The warning/guidance display/warning sound status when the charging system warning light is on is as follows.

Vehicle conditions

Instrument cluster

Warning light

Guidance display

Warning sound
Malfunction occurred in high voltage battery charging system
Yes


Master Warning Indication


Function/purpose

•  If a non-serious malfunction in the EV system occurs, the EV system master warning indication turns on to notify the driver of the EV system malfunction.


Structure/construction

•  The master warning indication is built into the instrument cluster.
•  When the master warning indication turns on, a warning message is displayed on the multi-information display in the instrument cluster. Additionally, a warning sound is activated.
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Operation

•  If the PCM detects an EV system-related non-serious malfunction, it sends a master warning indication on request signal to the body control module (BCM) via CAN communication.
•  When the body control module (BCM) receives the signal, it sends a master warning indication request signal, a guidance display request signal, and a warning sound request signal to the instrument cluster via CAN communication.
•  The instrument cluster turns on the warning indication, displays the guidance, and activates the warning sound according to these received signals.
•  The warning/guidance display/warning sound status when the master warning indication is on is as follows.

Vehicle conditions

Instrument cluster

Warning light

Guidance display

Warning sound
EV system-related non-serious malfunction occurred
Yes


Output Restriction Warning Light


Function/purpose

•  The output restriction warning light turns on when the output of the EV system is restricted to protect parts and notify the driver that output is restricted.


Structure/construction

•  The output restriction warning light is built into the instrument cluster.
•  When the output restriction warning light turns on/flashes, a warning message is displayed on the multi-information display in the instrument cluster according to the output restriction cause. Additionally, a warning sound is activated.
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Operation

•  The PCM sends the EV system output restriction status to the body control module (BCM) via CAN communication.
•  When the body control module (BCM) receives the signal, it sends an output restriction warning light on request signal, a guidance display request signal, and a warning sound request signal according to the output restriction cause to the instrument cluster via CAN communication.
•  The instrument cluster turns on the warning light, displays the guidance, and activates the warning sound according to these received signals.
•  The warning/guidance display/warning sound status when the output restriction warning light is on is as follows.

Vehicle conditions

Instrument cluster

Warning lights/indicator lights

Guidance display

Warning sound
If any of the following:
•  Excessive EV system component part temperature
•  High voltage battery state of charge (SOC) decreased
•  High voltage battery temperature is low
Output restriction level is low
 
(ON)
Yes
 
(Flashing)
Output restriction level is high
(Driving on upslope may be impossible)


Guidance Display


Function/purpose

•  The EV system guidance display notifies the driver of the EV system status.


Structure/construction

•  The EV system guidance display is displayed in the instrument cluster.
•  During EV system guidance display, a warning sound is activated depending on the vehicle conditions.
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Operation

•  The PCM sends the EV system status to the body control module (BCM) via CAN communication.
•  When the body control module (BCM) receives the signal, it sends a guidance display request signal and a warning sound request signal according to the output status to the instrument cluster via CAN communication. Additionally, the body control module (BCM) sends a guidance display request signal and a warning sound request signal based on the calculation result of the remaining distance to full discharge to be displayed in the instrument cluster.
•  The instrument cluster performs guidance display and activates the warning sound according to these received signals.
•  The warning lights/indicator lights/guidance display/warning sound status during the guidance display is as follows.

Vehicle conditions

Instrument cluster

Warning lights/indicator lights

Guidance display

Warning sound
High voltage battery temperature increases
—
Yes
High voltage battery temperature decreases
—
Yes
Accelerator and brake pedals are depressed simultaneously (brake override)
—
Yes
Malfunction in which brake override does not operate normally has occurred
—
Yes
Brake override operation is stopped using [Settings] in Mazda Connect
—
Yes
High voltage battery is fully charged and it cannot accept power generated by regenerative braking
—
Yes
Although lead-acid battery charging malfunction warning light does not turn on, lead-acid battery voltage has decreased
—
No
Although high voltage battery remaining distance to full discharge warning light does not turn on, body control module (BCM) calculates remaining distance to full discharge as below reference value
—
Yes
EV system is started using power switch while charge cable is connected
—
Yes
(Refusal sound)
When servicing, electric water pump is driven to bleed air after replacement/refilling coolant
(See Workshop Manual)
—
No
Battery heater system control is operated at extremely low temperatures
(See BATTERY HEATER CONTROL.)
—
No
Battery heater system control is operated at extremely low temperatures, but high voltage battery charge has decreased
(See BATTERY HEATER CONTROL.)
—
No
Prolonged parking at extremely low temperatures continues for 5 days or more
(See BATTERY HEATER CONTROL.)
—
No
Battery heater system control is activated frequently during prolonged parking at extremely low temperatures
(See BATTERY HEATER CONTROL.)
—
No
Charging is interrupted due to charging prohibited condition during charging
—
Yes
During charging
—
Charging exclusive-use screen display
(See CHARGING STATUS DISPLAY.)
No
Possibility of output restriction to level not permitting driving on upslope.
—
No
BCM determines that auxiliary device power charging is necessary
(See AUXILIARY DEVICE POWER CHARGING SYSTEM.)
—
Yes