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

DTC 52

1. Disconnect control unit harnesses at connector and check for proper connections at terminals.
2. Regardless of terminal conditions, road test vehicle with all harnesses reconnected at connector.
3. If trouble code is still displayed, replace control unit.