With Manufacturer's Scan Tool

Secondary Air Injection (AIR) pump motor, checking



Special tools and equipment needed:





^ VAG1551 Scan Tool (ST)

Note: If VAG1551 Scan Tool (ST) is not available, use VAG1552 Mobile Scan Tool (ST) instead, although this tool cannot produce a print-out.





^ VAG1551/3 cable

Test requirements
^ Fuse for Secondary Air Injection (AIR) pump relay -J299- OK
^ Intake hose for Secondary Air Injection (AIR) pump not clogged or kinked

Test sequence
- Remove noise insulation.
- Disconnect pressure hose at Secondary Air Injection (AIR) pump motor.
- Activate Secondary Air Injection (AIR) pump relay via output Diagnostic Test Mode (DTM).
- The Secondary Air Injection (AIR) pump motor must start up in intervals and air must exit from exhaust tube.
If motor starts, but no air exits:
- Replace Secondary Air Injection (AIR) pump motor.
If the Secondary Air Injection (AIR) pump motor does not start up in intervals:
- Check activation of the Secondary Air Injection (AIR) pump motor: