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Home >> Honda >> 2007 >> Civic L4-1.8L CNG >> Repair and Diagnosis >> Relays and Modules >> Relays and Modules - Powertrain Management >> Relays and Modules - Computers and Control Systems >> Main Relay (Computer/Fuel System) >> Description and Operation
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Main Relay (Computer/Fuel System): Description and Operation

PGM-FI Main Relay 1
PGM-FI main relay 1 is energized whenever the ignition switch is ON (II) to supply battery voltage to the PCM, and power for the injector control module relay, and the ETCS control relay.
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