cadillac Workshop Repair Guides

Cadillac Workshop Service and Repair Manuals

Relays and Modules - Fuel Delivery and Air Induction > < Air Injection Pump Relay|Locations
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Air Injection Pump Relay: Description and Operation

A.I.R. Pump Wiring Diagram.

Purpose:

The PCM controls operation of the electric air pump relay which in turn controls air availability to the air injection system.

Operation:

The PCM completes the ground to the coil side of the relay. The relay in turn activates the electric air pump.

Location:

The A.I.R. electric Air Pump relay is located in the underhood electrical center.

Relays and Modules - Fuel Delivery and Air Induction > < Air Injection Pump Relay|Locations