Secondary Air Injection (AIR) Pump Motor, checking

WARNING: This page does not describe the selected car, but rather 11 other vehicles, including the 1999 Volkswagen Jetta, 1999 Volkswagen GTI, 1998 Volkswagen Jetta, 1998 Volkswagen GTI, and 1997 Volkswagen Jetta. However, it is still accessible from the selected car via links, so may be relevant.

Fuse on Secondary Air Injection (AIR) Pump Relay - J299- -arrow- OK.

Fig 1: Identifying Secondary Air Injection (AIR) Pump Relay Location
Engine oil temperature 15 -85 C (58 -185 F)

Disconnect pressure hose from AIR Inlet Valve, and route upwards.
Start engine and run at idle.

After approx. 20 seconds the AIR Pump Motor (V101) should run for approx. 5 seconds, and secondary air must exit from pressure hose

If the AIR Pump Motor -V101- does NOT run:

Stop engine.
Disconnect 2-pin connector from AIR Pump Motor - V101-.
Connect VAG 1527B voltage tester to the open connector using cables from VAG 1594 adapter kit.
Start engine and run at idle.
- After approx. 20 seconds, LED must light for approx. 5 seconds.

If LED lights (voltage supply OK):

Replace Secondary Air Injection (AIR) Pump Motor -V101-.

If LED does NOT light:

Reconnect 2-pin connector.
Check activation of Secondary Air Injection (AIR) Pump Motor -V101-:
See ELECTRICAL TESTING WITH (VAG1598 TEST BOX) .

If Secondary Air Injection (AIR) Pump Motor -V101- does NOT run during the electrical check:

Check for malfunction of Secondary Air Injection (AIR) Pump Relay -J299-:

Check Diagnostic Trouble Code (DTC) Memory:

For model years 1993-1995, see DIAGNOSTIC TROUBLE CODE (DTC) MEMORY, CHECKING

For model years 1996-1999, see CHECK DTC MEMORY (SCAN TOOL FUNCTION 02)