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Amplifier Test

Connect voltmeter between battery positive terminal and ignition coil negative terminal, voltmeter should register zero volts. See Fig 1 . Switch ignition ON, voltmeter should still register zero volts. Crank engine, voltage should increase when cranking, in which case proceed to SECONDARY IGNITION COIL WIRE TEST  . If there is no increase in voltage during cranking, proceed to PICK-UP COIL RESISTANCE TEST  .

Fig 1: Testing Amplifier Switching
G00109153Courtesy of LAND ROVER NORTH AMERICA, INC.