Operation CHARM: Car repair manuals for everyone.

Fuel Pump Relay



EGR Solenoid
Energized engine temperature below 60° C (140° F)
Energized engine rpm less than 800
Energized engine rpm more than 5200
Energized vehicle speed below 11 m.p.h. (18 km/h)

Canister Purge Solenoid
Energized engine temperature below 60° C (140° F)
Energized engine rpm less than 800
Energized engine rpm more than 5200
Energized vehicle speed below 11 m.p.h. (18 km/h)


Fuel Pump Relay
Energized [1] whenever key is on

[1] Only for 5 seconds if engine is not started.