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Test 3

Connect the voltmeter between battery positive terminal and high tension coil negative terminal, the voltmeter should register zero volts. See Fig 1 . Switch the ignition ON, the voltmeter should still register zero volts. Crank the engine, the voltmeter reading should increase when cranking, in which case proceed to TEST 5  . If there is no increase in voltage during cranking proceed to TEST 4  .

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