Touareg V8-4.2L (BHX) (2004)
‹› The connectors must audibly engage on valves when attached.
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Erase DTC memory of Engine Control Module (ECM) , Diagnostic mode 4: Reset/erase diagnostic data.
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Generate readiness code.
Checking voltage supply
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Connect diode test lamp to connector of fuel injector to be tested, terminal 1 + Ground (GND).
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Operate starter and test voltage supply for fuel injector.
LED must light up.
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Switch ignition off.
If LED does not light up:
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Check voltage supply at 2-pin connector terminal 1 to Motronic Engine Control Module (ECM) Power Supply Relay (J271) according to wiring
diagram:
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Erase DTC memory of Engine Control Module (ECM) , Diagnostic mode 4: Reset/erase diagnostic data.
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Generate readiness code.
Activation and voltage supply, checking
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Connect diode test lamp to the connector terminals 1 + 2of the fuel injector to be checked.