Test sequence
- Initiate output Diagnostic Test Mode (DTM) and activate Secondary Air Injection (AIR) pump relay -J299-
See OUTPUT DIAGNOSTIC TEST MODE (DTM) .
- The Secondary Air Injection (AIR) pump relay (in 3-socket relay carrier in the E-box, at left in plenum chamber, position 2) must engage and the Secondary Air Injection (AIR) pump motor -V101- must run intervals
A - If relay does not trigger:
- Check voltage supply of Secondary Air Injection (AIR) pump relay. See CHECKING VOLTAGE SUPPLY OF SECONDARY AIR INJECTION (AIR) PUMP RELAY .
- Check activation of Secondary Air Injection (AIR) pump relay. See CHECK ACTIVATION OF THE SECONDARY AIR INJECTION (AIR) PUMP RELAY .Fig 1: Locating Secondary Air Injection Pump Relay (In 3-Socket Relay Carrier In The E-Box, At Left In Plenum Chamber, Position 2)
Courtesy of AUDI OF AMERICA, INC.
B - If relay triggers, but Secondary Air Injection (AIR) pump does not run:
- Check voltage supply of Secondary Air Injection (AIR) motor. See CHECK VOLTAGE SUPPLY OF THE SECONDARY AIR INJECTION (AIR) PUMP MOTOR .