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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X154 - Check If FPM PID Is On During Crank



- Key On.

- While viewing FPM PID, crank engine.

- Is the FPM PID on during crank?

YES -- The fuel pump electrical circuits checkout OK. GO to Pinpoint Test Step HC1 to check for mechanical fuel system concerns. HC1 - Check System Integrity

NO -- Key Off. GO to X165. X165 - Check For B+ To Fuel Pump Relay