S4 V8-4.2L (BHF) (2004)
-
Connect multimeter for voltage measurement as follows.
3-socket relay carrier in
Measure to
electronics box, plenum
chamber, position 2terminal
-8 -
Engine Ground (GND)
Specified value: Approx. battery voltage
If specified value is not obtained:
-
Perform following tests marked with dots:
-
Check Fuse for secondary air pump -S130- in electronics box plenum chamber, position - B -.
-
Check wiring connection from battery + (terminal 30) via Fuse for secondary air pump -S130- to Secondary Air Injection (AIR) Pump Relay
-J299- (in relay and fuse carrier in electronics box, plenum chamber, position - 2 - ) for open circuit.
-
Connect multimeter for voltage measurement as follows.
3-socket relay carrier in
Measure to
electronics box, plenum
chamber, position 2terminal
-4 -
Engine Ground (GND)
-
Operate starter briefly.