audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

Air Injection Vacuum Control Solenoid Valve|Locations|Page 5083 > < Air Injection Vacuum Control Solenoid Valve|Locations|Page 5081
Page 2
background image

-

Connect multimeter at valve for resistance measurement.
-

Specification: 25 to 35 ohm

-

If specified value is not obtained, replace Secondary Air Injection (AIR) solenoid valve -N112-.

Checking voltage supply

-

Disconnect harness connector from Secondary Air Injection (AIR) valve -N112-.

-

Connect VAG1527B voltage tester as follows:

Harness connector

Measure to

Terminal

1

Engine Ground (GND)

-

Operate starter briefly (engine can also start).
-

LED must light up.

If LED does not light up:

-

Perform the following tests marked with dots:

-

Check fuse S243 (in fuse holder, position 43).

Air Injection Vacuum Control Solenoid Valve|Locations|Page 5083 > < Air Injection Vacuum Control Solenoid Valve|Locations|Page 5081