A4 Quattro Sedan L4-1.8L Turbo (AEB) (1998)
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Seat Belt Buckle Switch: Diagnostic Aids
Checking For Voltage
Voltage
Checking for Voltage confirms that the circuit is uninterrupted between the Voltage source and the test point.
Testing For Voltage
This example illustrates troubleshooting the high-speed circuit for the radiator cooling fan.
Voltage:
If the test light or multimeter indicates Voltage potential, then the circuit between the Voltage source and terminal 1 of the fan connector is OK.
NO Voltage:
