Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

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Backup Battery





BACKUP BATTERY





1. Disconnect the negative battery cable.
2. Remove the Vehicle Tracking Module (VTM) (1) from the vehicle Vehicle Tracking Module (VTM).





3. Remove the backup battery cover (1).





4. Position the backup battery (1) next to the VTM leaving the backup battery connected.






NOTE: Do not pull on the wires to disconnect the connector from the VTM doing so will damage VTM or the battery connector.

5. Grab the backup battery connector by the connector end (1) and gently wiggle back and forth while pulling up.

To replace the SUBSCRIBER IDENTIFICATION MODULE (SIM) CARD Subscriber Identification Module (SIM) Card.