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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Main Relay (Computer/Fuel System)

PGM-FI Main Relay Schematic View:






FUEL PUMP MAIN RELAY

Continuity Between No. 6 terminal and No. 7 terminal when,
a. Battery positive (+) voltage applied to No. 5 terminal
b. Battery negative (-) voltage applied to No. 3 terminal

Continuity Between No. 4 terminal and No. 5 terminal, when,
a. Battery positive (+) voltage applied to No. 6 terminal
b. Battery negative (-) voltage applied to No. 1 terminal