SECURITY LIGHT 21, DTC B1213/B1213/P1260

id0902e3829700

DTC 21

Number of valid keys is below minimum.

POSSIBLE CAUSE

• Less than two valid keys

Diagnostic procedure

STEP

INSPECTION

ACTION

1
VERIFY NUMBER OF VALID KEYS
• Check following PID/DATA monitor with M-MDS.
- NUMKEYS
• Is NUMKEYS displayed more than 2?
Note
• To start the engine, two or more keys need to be registered.
Yes
Replace instrument cluster and reprogram immobilizer system.
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
- M-MDS: B1213
Yes
Replace instrument cluster and reprogram immobilizer system.
No
DTC troubleshooting completed.