SEAT Workshop Service and Repair Manuals > Leon Mk1 > Power unit | 4-Cyl. Diesel engine, Mechanics | Fuel preparation system Diesel injection | Checking additional signals

Checking speed signal

Special tools and workshop equipment required

t	Diode test lamp -V.A.G 1527-

t	Fault reader -V.A.G 1551- or vehicle system tester -V.A.G 1552- with cable -V.A.G 1551/3A-

t	Adapter set -V.A.G 1594-

t	Test box -V.A.G 1598/22-

t	Current flow diagram

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