Diagnostic Procedure
STEP INSPECTION ACTION
Yes Go to Step 3.
1
VERIFY DTC USING WDS OR
EQUIVALENT
• Is B1600/P1260 displayed?
No Go to the next step.
Yes
SECURITY LIGHT: 13, WDS or equivalent:
B2431/P1260.
(See SECURITY LIGHT: 13, DTC B2431/P1260
.)
2
VERIFY DTC USING WDS OR
EQUIVALENT
• Is B2431/P1260 displayed?
No Go to the next step.
Yes Go to Step 5.
3
VERIFY WHETHER KEY IS VALID OR
NOT
• Are there any keys with which the
engine can be started, other than the
key that is a cause of the displayed
DTC?
No Go to the next step.
Yes
Replace the coil, then go to Step 6.
(See COIL REMOVAL/INSTALLATION .)
4
VERIFY WHETHER MALFUNCTION
IS IN KEY OR COIL
• Using the WDS or equivalent, register
an additional key.
(See IMMOBILIZER SYSTEM
COMPONENT
REPLACEMENT/KEY ADDITION
AND CLEARING .)
• Using the registered key, turn the
ignition switch to the ON position.
• Verify the DTC using the WDS or
equivalent.
Is B1600/P1260 displayed
again?
No
• Dispose of the malfunctioning key.
• Register a new key if necessary.
(See IMMOBILIZER SYSTEM
COMPONENT REPLACEMENT/KEY
ADDITION AND CLEARING .)
5
VERIFY WHETHER MALFUNCTION
IS IN KEY OR COIL
Yes
Replace the coil, then go to the next step.
(See COIL REMOVAL/INSTALLATION .)