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

id0902e5915700

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

Diagnostic procedure

STEP | INSPECTION | ACTION
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1 | VERIFY NUMBER OF VALID KEYS • Check following PID/DATA monitor with SST (WDS or equivalent). - NUMKEYS • Does NUMKEYS display more than 2? Note • Two or more valid keys are necessary to start engine. | Yes | Replace PCM and reprogram immobilizer system. (See IMMOBILIZER SYSTEM REPROGRAM PROCEDURE [KEYLESS ENTRY SYSTEM])
No | • Erase key ID numbers and register necessary key ID numbers. • Go to next step.
2 | VERIFY DTC • Does security light or SST (WDS or equivalent) indicate DTC 21 (B1213) again? | Yes | Replace PCM and reprogram immobilizer system. (See IMMOBILIZER SYSTEM REPROGRAM PROCEDURE [KEYLESS ENTRY SYSTEM])
No | Troubleshooting is completed.