A4 Cabriolet L4-1.8L Turbo (AMB) (2005)
/Page-966003.png)
-
Remove cover for E-box, plenum chamber (arrows).
-
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.
-
Connect test box to wiring harness of Engine Control Module (ECM). ECM is not connected. See: Computers and Control Systems/Testing and
Inspection/Scan Tool Testing and Procedures/Scan Tool Testing/With Generic Scan Tool/Scan Tool Connecting/Test Box, Connecting For
Wiring and Component Test
-
Using wires e.g. from connector test kit V.A.G 1594 A, bridge terminals 1 and 66 on test box.
-
Switch ignition on.
-
Secondary Air Injection (AIR) Pump Relay -2- (in E-box, plenum chamber) must engage and Secondary Air Injection (AIR) Pump Motor
-V101- must run
A. Secondary Air Injection (AIR) Pump Motor runs:
-
Check voltage supply of the Secondary Air Injection (AIR) pump relay.
-
Check activation of the Secondary Air Injection (AIR) pump relay.
B. Secondary Air Injection (AIR) Pump Motor does not run:
-
Check voltage supply of the Secondary Air Injection (AIR) pump motor.
Checking voltage supply of Secondary Air Injection (AIR) pump relay
