Mazda CX-7 2007 Workshop Manual page 1333

ON-BOARD DIAGNOSTIC [IMMOBILIZER SYSTEM (KEYLESS ENTRY SYSTEM)]
SECURITY LIGHT 12, DTC B2103/P1260[IMMOBILIZER SYSTEM (KEYLESS ENTRY SYSTEM)]
SECURITY LIGHT: 12
DTC: B2103/P1260
DETECTION CONDITION
POSSIBLE CAUSE
Diagnostic Procedure
STEP
1 INSPECT CONNECTOR CONNECTION
• Are the coil antenna connector and the
instrument cluster connector securely
connected?
2 INSPECT PCM
• Turn the ignition switch to the ON position.
• Is the DTC displayed?
— Security light: 12
— M-MDS: B2103/P1260
End Of Sie
SECURITY LIGHT 13, DTC B1600/P1260[IMMOBILIZER SYSTEM (KEYLESS ENTRY SYSTEM)]
SECURITY LIGHT: 13
DTC: B1600/P1260
DETECTION CONDITION
POSSIBLE CAUSE
• Coil antenna malfunction
• The PCM determined a malfunction in the coil antenna even though it is normal.
• Coil antenna malfunction
• The PCM determined a malfunction in the coil antenna even though it is normal.
• Coil antenna malfunction
• Poor connection of the coil antenna connector
• PCM malfunction
INSPECTION
The key ID number data cannot be read.
• The key ID number data cannot be read.
• No transponder in the key
• Transponder malfunction (Key ID number is not output)
• Coil antenna malfunction
• Instrument cluster malfunction
• Any of the following items are touching or near the key head.
— Spare keys
— Keys for other vehicles equipped with an immobilizer system
— Any metallic object
— Any electronic device, or any credit or other cards with magnetic strips
EXAMPLES:
Yes Replace the coil antenna, then go to the next step.
(See 09-14-11 COIL ANTENNA REMOVAL/
INSTALLATION.)
No Connect the connector securely.
Yes Replace the PCM and perform the resetting procedure
for the immobilizer system when replacing the PCM.
(See 01-40-6 PCM REMOVAL/INSTALLATION[L3
WITH TC].)
(See 09-14-20 IMMOBILIZER SYSTEM COMPONENT
REPLACEMENT/KEY ADDITION AND
CLEARING[KEYLESS ENTRY SYSTEM].)
No DTC troubleshooting completed.
METAL RING LYING ON KEY HEAD
METAL PART OF ANOTHER
KEY TOUCHING KEY HEAD
KEY IS NEAR OR TOUCHING
ANOTHER IMMOBILIZER SYSTEM KEY
id0902e5800700
ACTION
id0902e5800800
09-02C–7
09-02C