Mazda X-5. Manual — part 108

SECURITY AND LOCKS [KEYLESS ENTRY SYSTEM]

09–14B–3

09–14B

SECURITY AND LOCKS SYSTEM WIRING DIAGRAM

E5U091400001N06

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POWER DOOR LOCK SYSTEM OUTLINE

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• A door lock knob interlock function has been adopted where all doors are locked/unlocked when the driver’s

door is locked/unlocked with the driver’s door lock knob.

• A door key interlock function has been adopted where all doors are locked/unlocked when the driver’s door is

locked/unlocked with the driver’s door key cylinder.

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DOOR SWITCH
(DRIVER-S SIDE)

DOOR SWITCH
(PASSENGER-S
SIDE)

FLASHER
CONTROL
MODULE

M

KEYLESS
RECEIVER

B+

ACC

IG1

1F

1E

3I

3B

3S

3C

1B

3T

3U

B+

B+

M M

1C

1A

1D

4U

4N

4U

4V

3O

4T

3Z

4G

KEY REMINDER SWITCH

TRUNK
COMPARTMENT
LIGHT SWITCH

TRUNK
COMPARTMENT
LIGHT

LOCK

UNLOCK

B+

SECURITY
LIGHT

INSTRUMENT CLUSTER

KEYLESS
CONTROL MODULE

4Q

4I

4E

DOOR KEY CYLINDER
SWITCH (DRIVER-SIDE)

4K

TRUNK KEY CYLINDER
SWITCH

4B

DOOR LOCK SWITCH
(DRIVER-SIDE)

DOOR LOCK SWITCH
(PASSENGER-SIDE)

DOOR LOCK-
LINK SWITCH
(DRIVER-SIDE)

DOOR LOCK-
LINK SWITCH
(PASSENGER-
SIDE)

UNLOCK

LOCK

4R

UNLOCK

LOCK

3F

3R

B+

HORN
RELAY

HORN

HAZARD
WARNING
SWITCH

B+

TRUNK
OPEN
RELAY

TRUNK LID OPENER
CANCEL SWITCH

TRUNK LID
OPENER SWITCH

TRUNK LID
OPENER

HOOD SWITCH

E5U914BS1002

SECURITY AND LOCKS [KEYLESS ENTRY SYSTEM]

09–14B–4

POWER DOOR LOCK SYSTEM OPERATION

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• When the driver’s door is locked/unlocked with the driver’s door lock knob or key cylinder, the door lock-link

switch in the door lock actuator is locked/unlocked via the rod.

• The keyless control module activates each lock actuator to lock/unlock according to the lock/unlock signal from

the door lock-link switch.

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KEYLESS ENTRY SYSTEM OUTLINE

E5U091469000N12

• The doors also can be locked/unlocked by operating the key or transmitter.

• The answer-back function has been adopted where the hazard warning lights flash and a buzzer sounds to

confirm that the doors are locked/unlocked.

• A rolling code type transmitter has been adopted to prevent theft by radiowave interception.

• To prevent improper operation while the vehicle is moving, the doors cannot be locked/unlocked by operating

the transmitter if the ignition key is not in the LOCK position.

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KEYLESS ENTRY SYSTEM OPERATION

E5U091469000N13

Lock/unlock

Note

• If any of the following conditions are met, the doors cannot be locked by operating the transmitter.

— The key is inserted in the ignition key cylinder.

— The ignition switch is not in the LOCK position.

— Any door is open.

• If any of the following conditions are met, the doors cannot be unlocked by operating the transmitter.

— The key is inserted in the ignition key cylinder.

— The ignition switch is not in the LOCK position.

1. When the transmitter is operated, the transmitter sends ID data and rolling code. They are received by the

keyless receiver and sent to the keyless control module.

2. When the keyless control module receives a lock/unlock signal from the transmitter and verifies the ID, the

signal is sent to the all lock actuators activate to lock/unlock.

3. The keyless control module operates the hazard warning light to flash according to lock/unlock signal from the

transmitter.

— When the LOCK button is pressed, the hazard warning lights flash once.

— When the UNLOCK button is operated, the hazard warning lights flash twice.

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KEYLESS
CONTROL
MODULE

DOOR LOCK-LINK SWITCH
(IN DRIVER'S DOOR LOCK
ACTUATOR)

DRIVER'S DOOR
LOCK KNOB

DRIVER'S DOOR
KEY CYLINDER

LOCK ACTUATOR

E5U914AS1003

TRANSMITTER

KEYLESS RECEIVER

KEYLESS
CONTROL
MODULE

LOCK ACTUATOR

E5U914BS1003

SECURITY AND LOCKS [KEYLESS ENTRY SYSTEM]

09–14B–5

09–14B

TRANSMITTER (RETRACTABLE KEY TYPE) STRUCTURAL VIEW

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IMMOBILIZER SYSTEM OUTLINE

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• The immobilizer system is a vehicle theft prevention device that only allows keys that have previously been

registered to the vehicle to start the engine. Therefore, it functions to prevent theft by means such as a forged
key or electrical 'hotwiring'.

• Consists of the key (with built-in transponder), coil antenna, PCM, instrument cluster and security light (in the

instrument cluster).

• The immobilizer system operates automatically when the ignition switch is turned to the LOCK or ACC position.

(The security light illuminates when the immobilizer system is in operation)

• When the ignition switch is turned from the LOCK (or ACC position) to the ON (or START position) with a

previously registered key, the release operation begins automatically. The engine is allowed to start only after
this operation is successful. (The security light illuminates for 3 s and then goes out when the immobilizer
system has been released.)

• The immobilizer system cannot be deactivated.

• Due to immobilizer system characteristics, the engine cannot be started unless two or more keys are

registered. Moreover, when performing “Instrument cluster replacement”, “PCM replacement”, or “Replacement
of all the keys”, two or more keys usable with the immobilizer system must be readied.

• A maximum of eight keys can be registered for one vehicle. The PID/data monitor function can be used to verify

the number of keys registered for a single vehicle.

• If there is a system malfunction or the immobilizer system is not properly released due to release operation

failure, the malfunction location can be verified using the malfunction diagnosis function of the on-board
diagnostic system.

Caution

• If any of the following items are touching

or near the key head, signal
communication between the key and
vehicle is negatively affected, resulting in
the engine not starting or a key
registration error. Do not perform
procedures if any of the following items
are touching or near the key head.

— Any metallic object

— Spare keys or keys for other vehicles

equipped with an immobilizer system

— Any electronic device, or any credit or

other cards with magnetic strips

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LOCK BUTTON

UNLOCK BUTTON

TRUNK LID OPENER BUTTON

PANIC BUTTON

C5U914ZS5001

METAL RING LYING ON KEY HEAD

METAL PART OF ANOTHER
KEY TOUCHING KEY HEAD

KEY IS NEAR OR TOUCHING
ANOTHER IMMOBILIZER SYSTEM KEY

EXAMPLES:

B3E0914W006

SECURITY AND LOCKS [KEYLESS ENTRY SYSTEM]

09–14B–6

IMMOBILIZER SYSTEM STRUCTURAL VIEW

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IMMOBILIZER SYSTEM WIRING DIAGRAM

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IMMOBILIZER SYSTEM CONSTRUCTION/OPERATION

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• When a key is inserted into the key cylinder, the key ID number of the key and the key ID number registered in

the PCM are compared. If the comparison is successful, permission is given to start the engine. For PCM
control, see Section 01, CONTROL SYSTEM.

• Keys contain a unique ID number that is previously registered in the instrument cluster. Due to this, if

immobilizer system component parts are replaced (such as key addition/clearing and instrument cluster
replacement), it is necessary to reset the system.

SECURITY LIGHT

COIL ANTENNA

KEY (TRNSPONDER)

PCM

INSTRUMENT
CLUSTER

E5U914BS1004

PCM

IG1

IG1

IG1

B+

COIL
ANTENNA

TX LINE

RX LINE

INSTRUMENT
CLUSTER

FUEL INJECTOR

FUEL PUMP RELAY

IGNITION COIL

STARTER RELAY

C3U0914S008