audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

Air Injection Pump Relay|Testing and Inspection|Page 3650 > < Air Injection Pump Relay|Testing and Inspection|Page 3648
Page 3
background image

-

Pry off Engine Control Module (ECM) retaining bracket (arrows) using a screwdriver and set control module aside.

-

If installed, unclip Transmission Control Module (TCM) retaining bracket and set control module aside.

-

Remove Secondary Air Injection (AIR) pump relay -3-.

-

Connect multimeter for voltage measurement as follows.

Relay carrier in E-box, plenum chamber,

Measure to

position 3
Terminal
8

Engine Ground (GND)

Specification: approx. battery voltage

If specified value is not obtained:

-

Perform following tests marked with dots:

Air Injection Pump Relay|Testing and Inspection|Page 3650 > < Air Injection Pump Relay|Testing and Inspection|Page 3648