S-Type (X200) V8-4.2L (2005)
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Air Injection Pump Relay: Description and Operation
AIR Pump Relay
The AIR pump relay is located in the engine compartment fusebox. The ECM is used to control the operation of the AIR pump by the AIR pump relay.
The AIR system receives its voltage supply through the AIR pump relay. The ECM monitors the state of the relay for correct operation as part of its
system
