Passat Wagon L4-2.0L (ABA) (1995)
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Connect VAG 1527B voltage tester to connector terminals 2 and 3 using adapter cables from VW 1594 and VW 1594/15 adapter.
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Operate starter and check ignition signal from Motronic ECM.
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LED must flicker
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Switch ignition off.
If LED does not flicker:
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Connect VAG 1598/18 test box to ECM wiring harness.
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Check wire for open circuit between test box socket 8 and 3-pin connector terminal 2, according to wiring diagram.
Wire resistance: Max. 1.5 Ohms
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Additionally check wires for short to one another.
Specification: Infinity Ohms (no continuity)
If no wiring malfunction is detected and voltage was present between terminals 1 and 3:
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Replace Motronic ECM J220.
If the voltage supply and activation is OK:
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Re-Connect 3-pin connector and high-voltage cable to coil.
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Connect VAG 1527B voltage tester to coil terminals 1 and 15.
WARNING! During the test, DO NOT touch the ignition coil terminals or the high-voltage cables.
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Operate starter.
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LED must flicker
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If necessary replace ignition coil power output stage N157.