TT Quattro Coupe L4-1.8L Turbo (BEA) (2003)
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Switch ignition coil from faulty cylinder with one from another cylinder.
If malfunction follows the ignition coil:
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Replace ignition coil.
If malfunction remains at original cylinder:
Check Ground (GND) connection
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Remove the 4-pin connector at ignition coil.
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Connect VAG1527B voltage tester as follows:
Harness connector
Measure to
Terminal
2
B+
4
B+
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LED must light up.
If LED does not light up:
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Check wire connections.
If LED lights up:
Checking voltage supply
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Connect multimeter for voltage measurement as follows:
Harness connector
Measure to
Terminal
1
Engine Ground (GND)
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Switch ignition on.
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Specification: approx. battery voltage
If specified value is not obtained:
