TT Roadster L4-1.8L Turbo (AWP) (2003)
-
Remove Secondary Air Injection (AIR) pump relay -1-.
-
Check wire between terminal 2 of relay carrier and terminal 2 of 2-pin connector of Secondary Air Injection (AIR) Pump Motor for open circuit
according to wiring diagram.
Wire resistance: max: 1.5 Ohm
-
Also check the wire for short circuit to B+ and Ground (GND).
Specified value: Infinite Ohm
-
Check wire between 2-pin connector terminal 1 and Ground (GND) for open circuit according to wiring diagram.
Wire resistance: max: 1.5 Ohm
If no malfunctions are found in wires:
-
Replace Motronic Engine Control Module (ECM) -J220-.