SECURITY LIGHT: DTC 21 (WDS OR EQUIVALENT: DTC B1213/B1213)


DTC 21 (B1213/B1213)	Number of valid keys is below minimum.
POSSIBLE CAUSE	• Less than two valid keys


STEP	INSPECTION		ACTION
1	VERIFY NUMBER OF VALID KEYS • Check following PID/DATA monitor with SST (WDS or equivalent). - NUMKEYS • Is NUMKEYS displayed more than 2? Note • To start the engine, two or more keys need to be registered.	Yes	Replace PCM and reprogram immobilizer system. (See IMMOBILIZER SYSTEM COMPONENT REPLACEMENT/KEY ADDITION AND CLEARING [WITH ADVANCED KEYLESS SYSTEM])
1		No	• Erase key ID numbers and register necessary key ID numbers. • Go to next step.
2	INSPECT KEYLESS CONTROL MODULE • Turn the ignition switch to the ON position. • Is the DTC displayed? - Security light: 21 - WDS or equivalent: B1213	Yes	Replace PCM and reprogram immobilizer system. (See IMMOBILIZER SYSTEM COMPONENT REPLACEMENT/KEY ADDITION AND CLEARING [WITH ADVANCED KEYLESS SYSTEM])
2		No	DTC troubleshooting completed.

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