Mazda 6 2002 - Dtc B1342; On-Board Diagnostic

T164
ON-BOARD DIAGNOSTIC [IMMOBILIZER SYSTEM]
End Of Sie
DTC B1601
A6E817067000W08
Diagnostic procedure
End Of Sie
DTC B1213
A6E817067000W09
Diagnostic procedure
End Of Sie
DTC B1342
A6E817067000W10
Diagnostic procedure
End Of Sie
DTC B1601 PCM received incorrect ID number from key (transponder).
POSSIBLE
CAUSE
• Defective transponder in the key
STEP INSPECTION ACTION
 INSPECT KEYS
• Turn ignition switch to ON position with first
encoded key for 3 seconds.
• Turn ignition switch to ON position with
second encoded key for 3 seconds.
• Turn ignition switch to START position with
second encoded key.
• Does engine start?
Yes Immobilizer system is okay.
No Replace PCM and reprogram immobilizer system.
(See T90 IMMOBILIZER SYSTEM REPROGRAM
PROCEDURE)
DTC B1213 Number of valid keys is below minimum.
POSSIBLE
CAUSE
• Less than two valid keys
STEP INSPECTION ACTION

REPROGRAM NEW KEY
• Register new key.
(See T90 IMMOBILIZER SYSTEM
REPROGRAM PROCEDURE)
Note
• Two or more valid keys are necessary
to start engine.
• After reprogramming, does the security light
illuminate for approximately 3 seconds and
then go out?
Yes Troubleshooting is completed.
No Reprogram immobilizer system again.
DTC B1342 PCM is defective
POSSIBLE
CAUSE
• Defective PCM
STEP INSPECTION ACTION
 INSPECT PCM
• Clear DTCs with WDS or equivalent.
• Does security light indicate DTC B1342
again.
Yes Replace PCM and reprogram immobilizer system.
(See T90 IMMOBILIZER SYSTEM REPROGRAM
PROCEDURE)
No Connect connectors properly.