Beetle L4-2.0L (AEG) (2000)
Ignition Coil: Testing and Inspection
With Manufacturer's Scan Tool
Ignition Coil and Power Output Stage, Checking
Special tools, workshop equipment, testers, measuring instruments and auxiliary items required
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VAG 1598/22 Test Box
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Fluke 83 multimeter
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VW 1594 Adaptor kit
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VAG 1527B Voltage tester
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Wiring diagram
Check conditions
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Battery voltage must be 11.5 Volts minimum.
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Camshaft Position sensor OK. See: Camshaft Position Sensor/Testing and Inspection
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Engine Speed sensor OK. See: Computers and Control Systems/Testing and Inspection/Component Tests and General Diagnostics/Engine Speed
(RPM) Sensor, Checking
NOTE:
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Ignition coils and Power output stages are a combined unit.
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Ignition coil primary resistance cannot be measured.
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Secondary resistance can be measured (with ignition cables connected) by connecting the multimeter between the spark plug connectors of the
ignition coil to be tested. Ignition cable RF suppression resistance is also measured.
Ignition coils and ignition cables, checking
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Disconnect 4-pin harness connector -1- from ignition coil Power output stage -2-.
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Disconnect spark plug connector.
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Disconnect ignition cables from ignition coils.
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Measure resistance of ignition wires and coils.
Resistance of ignition wires
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Specified value: 4 to 6 k Ohms
Secondary resistance of ignition coils
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Specified value: 8 to 14 k Ohms
If specifications not obtained
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Replace ignition coils and Power output stage.
If specifications obtained
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Check Power output stage triggering.
Voltage supply, checking