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

X24 - Check FC/LFC Circuit For Short to Power

- Key Off.

- Breakout box installed, PCM disconnected.

- CCRM disconnected.

- Key On, Engine Off.

- Measure voltage between Test Pin 68 and battery negative post.

- Is voltage less than 1.0 volt?

YES -- GO to X25. X25 - FC/LFC Circuit Fault Isolation Check

NO -- SERVICE short to power in FC/LFC circuit. REMOVE breakout box. RECONNECT all components. Rerun quick test. Diagnostic Subroutines (DSR) - Extracting Codes