New Beetle GLS L4-1.8L Turbo (AWV) (2001)
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Connect test box VAG 1598/31 to control module wiring harness. Motronic Engine Control Module (ECM) -J220- is not connected by this action.
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Check wire for open circuit between test box socket 64 and 2-pin connector terminal 2 using Electrical Wiring Diagram.
Wire resistance: max. 1.5 Ohms
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Additionally check wire for short to battery positive (B+) and Ground.
Specification: Infinity Ohms
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Check wire between 2 pin connector terminal 1 and Fuel Pump (FP) relay -J17- for open circuit using Electrical Wiring Diagram.
Wire resistance: max. 1.5 Ohms
If no wiring problems are detected:
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Replace Motronic Engine Control Module (ECM) -J220-.
Activating Secondary Air Injection Solenoid Valve -N112-:
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Press -> button.
Indicated on display
Output Diagnostic Test Mode
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Secondary air inlet valve -N112-
Secondary air injection valve must run until next control element is activated by pressing button.
If the valve does not click:
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Pull 2-pin connector off secondary air injection valve -N112- -arrow-.