Mazda X-5. Manual — part 121

INSTRUMENTATION/DRIVER INFO.

09–22–11

09–22

KEY REMINDER WARNING ALARM OUTLINE

E5U092255430N11

• Warns the driver that the key is in the steering lock when the driver-side door is opened.

End Of Sie

KEY REMINDER WARNING ALARM CONSTRUCTION/OPERATION

E5U092255430N12

System Wiring Diagram

Operation

• The buzzer in the instrument cluster sounds when

all the following three conditions are met:

— The ignition switch is in the LOCK or ACC

position.

— The key is in the steering lock (key reminder

switch is on).

— The driver-side door is open (driver-side door

switch is on).

End Of Sie

BURNT OUT BULB CHECK FUNCTION OUTLINE

E5U092255430N15

• The microcomputer in the instrument cluster illuminates the brake system warning light when the ignition switch

is in the ON position. Due to this, the brake system warning light function can be inspected for a burnt out bulb.

End Of Sie

BURNT OUT BULB CHECK FUNCTION CONSTRUCTION/OPERATION

E5U092255430N16

System Wiring Diagram

Operation

• The microcomputer in the instrument cluster

illuminates the brake system warning light for
approx. 3 s and then turns it off when the ignition
switch is turned to the ON position. (When the
parking brake switch or the brake fluid level
sensor is on, the brake system warning light
remains illuminated.)

End Of Sie

1G

1E

2E

1C

2W

IG1

B+

B+

DOOR SWITCH
(DRIVER-SIDE)

INSTRUMENT CLUSTER

KEY REMINDER
SWITCH

BUZZER

MICROCOMPUTER

AND

E5U922ZS5008

1G

1E

IG1

AND

INSTRUMENT CLUSTER

MICROCOMPUTER

TIMER

1D

BRAKE SYSTEM
WARNING LIGHT

BRAKE FLUID
LEVEL SENSOR

PARKING
BRAKE SWITCH

2M

E5U922ZS5016

INSTRUMENTATION/DRIVER INFO.

09–22–12

SPEEDOMETER CONTROL OUTLINE

E5U092255430N17

• The vehicle speed signal is output from the PCM to the microcomputer in the instrument cluster.

End Of Sie

SPEEDOMETER CONTROL CONSTRUCTION/OPERATION

E5U092255430N18

System Wiring Diagram

Operation

• The vehicle speed signal sent from the PCM via

the CAN system is input to the microcomputer in
the instrument cluster. The microcomputer
calculates the current vehicle speed based on the
vehicle speed signal, and sends an output signal
to the speedometer.

End Of Sie

TACHOMETER CONTROL OUTLINE

E5U092255430N19

• The engine speed signal is output from the PCM to the microcomputer in the instrument cluster.

End Of Sie

TACHOMETER CONTROL CONSTRUCTION/OPERATION

E5U092255430N20

System Wiring Diagram

Operation

• The engine speed signal sent from the PCM via

the CAN system is input to the microcomputer in
the instrument cluster. The microcomputer
calculates the current engine speed based on the
engine speed signal, and sends an output signal
to the tachometer.

End Of Sie

IG1 B+

1G

1E

1J

1L

1C

PCM

INSTRUMENT
CLUSTER

MICROCOMPUTER

SPEEDOMETER

CAN CONTROL
CIRCUIT

E5U922ZS5009

IG1 B+

1G

1E

1J

1L

1C

PCM

INSTRUMENT
CLUSTER

MICROCOMPUTER

CAN CONTROL
CIRCUIT

TACHOMETER

E5U922ZS5010

INSTRUMENTATION/DRIVER INFO.

09–22–13

09–22

FUEL GAUGE CONTROL OUTLINE

E5U092255430N21

• The fuel level signal is output from the fuel gauge sender unit to the microcomputer in the instrument cluster.

Fuel gauge variation caused by fluctuating fuel level when cornering or driving on a slope, is reduced by
microcomputer control.

End Of Sie

FUEL GAUGE CONTROL CONSTRUCTION/OPERATION

E5U092255430N22

System Wiring Diagram

Operation

• A resistance according to fuel level is sent from

the fuel gauge sender unit to the microcomputer.
The microcomputer calculates the average
resistance within a specified time, and sends the
output signal to the fuel gauge based on the
calculated value.

End Of Sie

WATER TEMPERATURE GAUGE CONTROL OUTLINE

E5U092255430N23

• The engine coolant temperature signal is output from the PCM to the microcomputer in the instrument cluster.

End Of Sie

WATER TEMPERATURE GAUGE CONTROL CONSTRUCTION/OPERATION

E5U092255430N24

System Wiring Diagram

Operation

• The engine coolant temperature signal sent from

the PCM via the CAN system is input to the
microcomputer in the instrument cluster. The
microcomputer calculates the current engine
coolant temperature based on the engine coolant
temperature signal, and sends an output signal to
the water temperature gauge.

End Of Sie

IG1 B+

1G

1E

2T

2R

1C

INSTRUMENT
CLUSTER

MICROCOMPUTER

FUEL GAUGE

FUEL GAUGE
SENDER UNIT

E5U922ZS5011

IG1 B+

1G

1E

1J

1L

1C

PCM

INSTRUMENT
CLUSTER

MICROCOMPUTER

CAN CONTROL
CIRCUIT

WATER TEMPERATURE GAUGE

E5U922ZS5012

INSTRUMENTATION/DRIVER INFO.

09–22–14

OIL PRESSURE GAUGE CONTROL OUTLINE

E5U092255430N25

• The engine coolant temperature signal and engine speed signal are output from the PCM to the microcomputer

in the instrument cluster.

End Of Sie

OIL PRESSURE GAUGE CONTROL CONSTRUCTION/OPERATION

E5U092255430N26

System Wiring Diagram

Operation

• The engine coolant temperature signal and

engine speed signal sent from the PCM via the
CAN system is input to the microcomputer in the
instrument cluster. The microcomputer calculates
the oil pressure based on the engine coolant
temperature signal and engine speed signal, and
sends the output signal to the oil pressure gauge
according to the calculated value.

End Of Sie

HORN CONSTRUCTION

E5U092266790N01

• A flat-type horn has been adopted.

End Of Sie

IG1 B+

1G

1E

1J

1L

1C

PCM

INSTRUMENT
CLUSTER

MICROCOMPUTER

CAN CONTROL
CIRCUIT

OIL PRESSURE GAUGE

1H

OIL PRESSURE
SWITCH

E5U922ZS5013

HORN

E5U922ZS5015