Mazda CX 7. Manual - part 398

SECURITY AND LOCKS 

09-14–27

09-14

3. Remove the battery.

4. Install the new battery (CR1620) with the positive 

pole facing down.

5. Align the upper and lower cover and close the 

transmitter.

Used battery

Lithium battery CR1620

Battery life

Approx. 2 years (when used 10 times/day)

6. Install the key to the transmitter.

End Of Sie

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SECURITY AND LOCKS 

09-14–28

TRANSMITTER ID CODE REGISTRATION[KEYLESS ENTRY SYSTEM]

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Note

• When registering the ID code into a keyless control module, verify that other transmitters are not being 

operated in the vicinity.

• After ID code registering, remove the key from the steering lock and verify that all doors lock/unlock 

normally using the transmitter.

End Of Sie

START

Remove the key from  the steering lock. 
Close all doors and liftgate (5 door).

Open the driver-side door.

1. Insert the key into the steering lock.

2. Repeat the following three times.

Turn the ignition switch to the ON position, 
then back to the LOCK position.

Do not remove the key from the steering lock.

Open and close the driver-side door three times 
(then leave the door open).  

Verify that the all door lock actuators lock, then unlock.

Push any button on any single transmitter twice.

Verify that the all door lock actuators lock, then unlock.

If you have only one transmitter, push any button

twice.
If you have two or three transmitters, push any 

button on any of the other transmitters twice.

Verify that the all door lock actuators lock, then unlock.

If you have one or two transmitters, push any

button on either transmitter twice.
If you have three transmitters, push any button
on the last transmitter twice.

Verify that the all door lock actuators lock, then unlock.

END

NO

NO

NO

NO

OK

OK

OK

OK

Verify that the door lock 
actuator repeats locking 
and unlocking operation 
twice.

Close the driver-side door.

Perform these procedures 
within 24 s.

Note

Wait for 40 s.

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SECURITY AND LOCKS 

09-14–29

09-14

CARD KEY BATTERY REPLACEMENT[ADVANCED KEYLESS SYSTEM]

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1. Pull out the auxiliary key.

2. Replace the cap using a flathead screwdriver, 

then rotate and remove the cap.

Caution

• Do not turn the cap excessively. The cap 

may be damaged.

3. Insert a flathead screwdriver into the crack and 

press the battery out.

4. Insert the new battery (CR2025) with the positive 

pole (+) facing the (+) mark on the cap.

Battery specification

Lithium CR2025 

× 1

Note

• The batteries will last about 1 years when 

used 10 times a day.

5. Rotate and close the cap.
6. Reinsert the auxiliary key.

End Of Sie

WM: DOOR LOCK RELAY

AUXILIARY KEY

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CAP

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CAP

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SECURITY AND LOCKS 

09-14–30

KEYLESS CONTROL MODULE REMOVAL/INSTALLATION[ADVANCED KEYLESS SYSTEM]

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Note

• If the keyless control module is replaced, always perform the following procedure.

Without immobilizer system

— Card key programming (See 09-14-34 CLEARING CARD KEY[ADVANCED KEYLESS SYSTEM].)

— Steering lock unit programming (See 09-14-35 STEERING LOCK UNIT ID CODE 

REGISTRATION[ADVANCED KEYLESS SYSTEM].)

With immobilizer system

— Card key programming (See 09-14-34 CLEARING CARD KEY[ADVANCED KEYLESS SYSTEM].)

— Steering lock unit programming (See 09-14-35 STEERING LOCK UNIT ID CODE 

REGISTRATION[ADVANCED KEYLESS SYSTEM].)

— Immobilizer system resetting (with immobilizer system) (See 09-14-11 IMMOBILIZER SYSTEM 

COMPONENT REPLACEMENT/KEY ADDITION AND CLEARING[ADVANCED KEYLESS 
SYSTEM].)

1. Disconnect the negative battery cable.
2. Remove the front side trim. (See 09-17-18 FRONT SIDE TRIM REMOVAL/INSTALLATION.)
3. Disconnect the keyless control module connector.
4. Remove the bolt, then remove the keyless control 

module.

5. Install in the reverse order of removal.

End Of Sie

KEYLESS CONTROL MODULE INSPECTION[ADVANCED KEYLESS SYSTEM]

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1. Measure the voltage or inspect for continuity according to the Terminal Voltage Table (Reference).

• If the voltage is not as specified in the Terminal Voltage Table (Reference), inspect the parts under 

“Inspection item(s)” and related wiring harnesses.

Terminal Voltage Table (Reference)

KEYLESS 
CONTROL 
MODULE

CONNECTOR

BOLT

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Terminal

Signal name

Connected to

Measured condition

Voltage (V)/

Continuity

Inspection item(s)

1A

 keyless 
antenna 
(exterior, 
LF)(+)

keyless antenna 
(exterior, LF)

Under any condition: Inspect 
for continuity to keyless 
antenna.

Continuity 

detected

keyless antenna (exterior, LF)

1B

 keyless 
antenna 
(exterior, LF)(-)

keyless antenna 
(exterior, LF)

Under any condition: Inspect 
for continuity to keyless 
antenna.

Continuity 

detected

keyless antenna (exterior, LF)

1C

 keyless 
antenna 
(exterior, 
RF)(+)

keyless antenna 
(exterior, RF)

Under any condition: Inspect 
for continuity to keyless 
antenna.

Continuity 

detected

keyless antenna (exterior, RF)

1M

1O

1I

1D

1G 1E

1K

1B

1L

1F

1H

1J

1P

1A

1C

1N

2K

2E 2C 2A

2G

2B

3N

3I

3F

3H

3U
3V

3K

3M

3X

3W

3Q

3A

3C

3E

KEYLESS CONTROL MODULE WIRING HARNESS SIDE CONNECTOR

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