With Generic Scan Tool

Check Voltage Supply Of The Secondary Air Injection (AIR) Pump Motor







- Remove bolts or quick-release screws -1- and -2- and remove front noise insulation.







- Disconnect electrical harness connector at Secondary Air Injection (AIR) Pump Motor -V101- (arrow).







- Connect VAG1527B voltage tester between terminals 1 and 2
- Connect test box to wiring harness of Engine Control Module (ECM); ECM is not connected. Test Box, Connecting For Wiring Test
- Bridge terminals 1 and 46 at test box using wires e.g. from V.A.G 1594 A adapter test kit.
- LED must light up.

If LED does not light up:
- Check wire connection from terminal 2 of harness connector to Secondary Air Injection (AIR) Pump Relay -J299- (in relay carrier in E-Box, plenum chamber, position 3) for open circuit according to wiring diagram.
- Check wire connection from terminal 1 of harness connector to Ground (GND) for open circuit according to wiring diagram.
- Specified value: Wire resistance max 1.5 Ohm

If no malfunctions are detected:
- Replace Secondary Air Injection (AIR) pump motor-V101-.

Final procedures
After repair work, the following work steps must be performed in the mentioned sequence:
1 - Check DTC memory "Mode 3: Check DTC memory". Diagnostic Mode 3: Check DTC Memory
2 - If necessary, erase DTC memory "Mode 4: Reset/erase diagnostic data". Diagnostic Mode 4: Reset/Erase Diagnostic Data
3 - Generate readiness code. Readiness Code, Generating
- End diagnosis and switch ignition off.