GF14.30-P-2010V Air Pump Relay, Description of Components

Air Pump Relay, Description Of Components

Component Identification:

Location
- Models 203, 209, 221: in front SAM control unit with fuse and relay module
- Models 171, 211, 219: in driver-side SAM control unit with fuse and relay module
- Model 230: passenger-side fuse and relay module
- Models 164, 251: in engine compartment fuse and relay box.

Component Identification:

Task
Actuates the electrical air pump and the air pump switchover valve.

Design
Vehicle specific relay with flat plug contacts and a closing contact.

Function
The secondary air injection relay is operated by the ME-SFI control unit through an output stage by means of a GND signal. The voltage is supplied through circuit 87.