isuzu Workshop Repair Guides

Isuzu Workshop Service and Repair Manuals

Relays and Modules - Fuel Delivery and Air Induction > < Main Relay (Computer/Fuel System)|Locations
Page 1
background image

Main Relay (Computer/Fuel System): Description and Operation

PURPOSE

Provides power to the Engine Control Module (ECM) and other components.

OPERATION

When the key is turned ON, the relay coil inside the relay energizes. This closes the contacts in the relay and supplies power to the ECM, Fuel
Injectors, and Oxygen Sensor heater.

Relays and Modules - Fuel Delivery and Air Induction > < Main Relay (Computer/Fuel System)|Locations