Passat Wagon L4-2.0L Turbo (BPY) (2008)
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Disconnect the Ignition Coils electrical harness connectors - arrows - from the Ignition Coils with Power Output Stage (N70, N127, N291, N292).
Checking voltage supply
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Switch the ignition on.
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Using a Multimeter, check the Ignition Coil electrical harness connector terminal 1 to Ground (GND) for voltage.
Specified value: battery voltage.
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Switch the ignition off.
If the specified value was not obtained:
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Check the Ignition Coil electrical harness connector terminal 1 to the Motronic Engine Control Module (ECM) Power Supply Relay (J271)
terminal 2/87 for an open circuit, short circuit to Battery (+) or Ground (GND).
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Check the wiring connection for damage, corrosion, loose or broken terminals.
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If necessary, repair the faulty wiring connection.
If the specified values were obtained:
Checking activation
CAUTION!
Do not touch the Ignition Coils connecting parts or adapter cables during the following test.