Secondary Air Injection (AIR) pump relay -J299- and activation, checking: Notes

WARNING: This page is about a different car, the 2006 Audi A4, 2005 Audi A4, 2004 Audi A4, 2003 Audi A4, and 2002 Audi A4. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Identifying Special Tools - Secondary Air Injection (AIR) Pump Relay -J299- And Activation, Checking

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Special tools and equipment

VAG1526A Multimeter
VAG1527B Voltage tester
VAG1594A Connector test kit
VAG1598/31 Test box

VAS5051 Vehicle diagnosis, testing and information system with VAG5051/1 Adapter

Requirement

VAS5051 tester connected and vehicle On Board Diagnostic (OBD) function 01 "Engine electronics" selected.

Work sequence

Initiate output Diagnostic Test Mode (DTM) and activate Secondary Air Injection (AIR) pump relay -J299-.

Fig 2: Removing Motronic Engine Control Module (ECM) Power Supply Relay J271 From E-Box

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Secondary Air Injection (AIR) pump relay -3- (in E-box, plenum chamber) must engage and Secondary Air Injection (AIR) pump relay -J299- must run in intervals

A - Does not engage relay:

Check voltage supply of Secondary Air Injection (AIR) pump relay. Refer to Checking voltage supply of Secondary Air Injection (AIR) pump relay .
Check activation of Secondary Air Injection (AIR) pump relay. Refer to Check activation of the Secondary Air Injection (AIR) pump relay .

B - If relay triggers, but Secondary Air Injection (AIR) pump motor does not run:

Check voltage supply of Secondary Air Injection (AIR) pump motor. Refer to Check voltage supply of the Secondary Air Injection (AIR) pump motor .