Mazda CX-7 2007 Workshop Manual page 1337

ON-BOARD DIAGNOSTIC [IMMOBILIZER SYSTEM (KEYLESS ENTRY SYSTEM)]
SECURITY LIGHT 15, DTC B1601/P1260[IMMOBILIZER SYSTEM (KEYLESS ENTRY SYSTEM)]
SECURITY LIGHT: 15
DTC: B1601/P1260
DETECTION CONDITION
POSSIBLE CAUSE
Diagnostic Procedure
STEP
1 VERIFY NUMBER OF REGISTERED KEYS
• Using the M-MDS, perform the PID/data monitor
inspection and confirm the number of registered
keys.
(See 09-02C-4 PID/DATA MONITOR
TABLE[IMMOBILIZER SYSTEM (KEYLESS
ENTRY SYSTEM)].)
• Are one or more keys registered?
2 VERIFY NUMBER OF REGISTERED KEYS
• Using the M-MDS, perform the PID/data monitor
inspection and confirm the number of registered
keys.
(See 09-02C-4 PID/DATA MONITOR
TABLE[IMMOBILIZER SYSTEM (KEYLESS
ENTRY SYSTEM)].)
• Are eight keys registered?
3 INSPECT INSTRUMENT CLUSTER
• Using the M-MDS, register the key ID number.
(See 09-14-20 IMMOBILIZER SYSTEM
COMPONENT REPLACEMENT/KEY ADDITION
AND CLEARING[KEYLESS ENTRY SYSTEM].)
Note
• Two or more keys must be registered to
start the engine.
• Using the registered key, turn the ignition switch
to the ON position.
• Is the DTC displayed again?
— Security light: 15
— M-MDS: B1601/P1260
End Of Sie
The instrument cluster has detected unregistered key ID number.
• The instrument cluster has detected unregistered key ID number.
• No keys have been registered after replacing the instrument cluster.
• Unregistered key used
• Attempt made to register a ninth key
• Instrument cluster malfunction
INSPECTION
Yes Go to the next step.
No Go to Step 3.
Yes Using the M-MDS, clear the key ID numbers as
necessary, then go to the next step.
No Go to the next step.
Yes Replace the instrument cluster and perform the
resetting procedure for the immobilizer system when
replacing the instrument cluster.
(See 09-22-2 INSTRUMENT CLUSTER REMOVAL/
INSTALLATION.)
(See 09-14-20 IMMOBILIZER SYSTEM COMPONENT
REPLACEMENT/KEY ADDITION AND
CLEARING[KEYLESS ENTRY SYSTEM].)
No DTC troubleshooting completed.
id0902e5801100
ACTION
09-02C–11
09-02C