Operation CHARM: Car repair manuals for everyone.

Clearing Trouble Codes

Retrieving and Erasing Immobilizer System Diagnostic Trouble Codes

Required Special Tool:
MB991502: Scan Tool (MUT-II)

CAUTION: To prevent damage to scan tool MB991502, always turn the ignition switch to LOCK (OFF) position before connecting or disconnecting scan too.




1. Connect scan tool MB991502 to the 16-pin data link connector.
2. Turn the ignition switch to ON position.
3. Use scan tool MB991502 to check or erase immobilize system diagnostic trouble codes.
4. Turn the ignition switch to LOCK (OFF) position.
5. Disconnect scan tool MB991502.