Jetta GLX Wagon V6-2.8L (AFP) (2001)
If the specified values are not obtained:
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Press -> button.
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Press buttons -0- and -6- to select "End Output" function 06 and press -0- button to confirm input.
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Switch ignition off.
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Remove protective cover (arrows) and disconnect 4-pin harness connector -1- to Oxygen Sensor (O2S) behind Three Way Catalytic Converter
(TWC) -G130-.
Checking voltage supply
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Connect multimeter using aux. cables from VW1594 to measure voltage at terminals -1- and -2- (harness connector to Engine Control Module
(ECM)).
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Start engine and run at idle
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Measure voltage supply and observe display group 41, display field 4.
Display: Htg.aC.ON
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Specified value: 11.0-14.5 V
Display: Htg.aC.ON/Htg.aC.OFF (alternating)
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Specified value: Between 0.0-12.0 V fluctuating
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Switch ignition off.
If no voltage is present:
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Remove wiper arms and plenum chamber cover.