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)

Or, hide this message: temporarily or permanently

Test G

PINPOINT TEST G: REMOTE KEYLESS ENTRY TRANSMITTER IS OUT OF SYNCHRONIZATION


Test G1:






Test G2-G5:






Normal Operation
The keyless entry remote transmitters and the vehicle security module use a rolling code to prevent the codes from being "captured" by a code grabber. The system advances the counter in the keyless entry remote transmitter and in the vehicle security module every time a keyless entry remote transmitter button is pressed.

Possible Causes
- vehicle security module DTC B2425 will set if the keyless entry remote transmitter is pressed a substantial number of times while outside the range of the vehicle.
- remote transmitter
- vehicle security module