Mazda 2002 6 - Security Light: Dtc

T–164
ON-BOARD DIAGNOSTIC [IMMOBILIZER SYSTEM]
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SECURITY LIGHT: DTC 13 (WDS OR EQUIVALENT: DTC B2431)
A6E817067000W06
Diagnostic procedure
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SECURITY LIGHT: DTC 14 (WDS OR EQUIVALENT: DTC B1602)
A6E817067000W07
Diagnostic procedure
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5
VERIFY WHETHER MALFUNCTION IS IN
COIL OR KEY
• Using any other valid key, turn ignition switch
to ON position.
• Does SST (WDS or equivalent) indicate DTC
B1600 again?
Yes Replace coil, then go to next step.
(See T–90 COIL REMOVAL/INSTALLATION)
No • Dispose of defective key.
• Duplicate key if necessary.
(See T–90 IMMOBILIZER SYSTEM REPROGRAM
PROCEDURE)
6 INSPECT PCM
• Using registered key, turn ignition switch to
ON position.
• Does SST (WDS or equivalent) indicate DTC
B1600 again?
Yes Replace PCM and reprogram immobilizer system.
(See T–90 IMMOBILIZER SYSTEM REPROGRAM
PROCEDURE)
No Troubleshooting is completed.
STEP INSPECTION ACTION
DTC 13 (B2431) ID number programing failure.
POSSIBLE
CAUSE
• The procedure fails to program the transponder into PCM
STEP INSPECTION ACTION
1
VERIFY DTC USING SST
• Does SST (WDS or equivalent) indicate DTC
B2431?
Yes Go to Step 3.
No Go to next step.
2
VERIFY DTC USING SST
• Does SST (WDS or equivalent) indicate DTC
B1600?
Yes Go to SECURITY LIGHT: DTC 13 (WDS OR EQUIVALENT:
B1600).
No Go to next step.
3
INSPECT PCM
• Erase key ID number using SST (WDS) and
register key ID number.
(See T–90 IMMOBILIZER SYSTEM
REPROGRAM PROCEDURE)
• Clear DTC with SST (WDS or equivalent).
• Does SST (WDS or equivalent) indicate DTC
B2431 again?
Yes Replace PCM and reprogram immobilizer system.
(See T–90 IMMOBILIZER SYSTEM REPROGRAM
PROCEDURE)
No Troubleshooting is completed.
DTC 14 (B1602) PCM received invalid format of ID number from key (transponder)
POSSIBLE
CAUSE
• Defective transponder in the key
• Defective coil
• Defective PCM
STEP INSPECTION ACTION
1 INSPECT FOR OTHER PROPER KEYS
• Using any other valid key, turn ignition switch
to ON position.
• Does security light or SST (WDS or
equivalent) indicate DTC 14 (B1602) again?
Yes Replace coil, then go to next step.
(See T–90 COIL REMOVAL/INSTALLATION)
No • Dispose of defective key.
• Duplicate key if necessary.
(See T–90 IMMOBILIZER SYSTEM REPROGRAM
PROCEDURE)
2 INSPECT PCM
• Turn ignition switch to ON position with the
registered key.
• Does security light or SST (WDS or
equivalent) indicate DTC 14 (B1602) again?
Yes Replace PCM and reprogram immobilizer system.
(See T–90 IMMOBILIZER SYSTEM REPROGRAM
PROCEDURE)
No Troubleshooting is completed.