Operation CHARM: Car repair manuals for everyone.

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