Passat Syncro Wagon V6-2771cc 2.8L DOHC (AHA) (1998)
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Disconnect harness connector -1- from Intake Air Temperature (IAT) sensor -2-.
When display is approx. -46 °C:
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Press -> button.
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Press buttons -0- and -6- to select "End Output" function 06, and press -Q- button to confirm input.
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Switch ignition off.
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Replace Intake Air Temperature (IAT) sensor -G42-.
When display is approx. 141 °C:
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Press -> button.
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Press buttons -0- and -6- to select "End Output" function 06, and press -Q- button to confirm input.
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Switch ignition off.
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Check wiring using appropriate wiring diagram.
Continuation of check when display reads ambient temperature
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Remove Intake Air Temperature (IAT) sensor (arrow). Attach harness connector again.
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Note intake air temperature value in display field 4.
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Spray sender with commercial chilling agent while observing temperature value.
Temperature value must decrease.
If temperature value does not decrease:
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Press -> button.
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Press buttons -0- and -6- to select "End Output" function 06, and press -Q- button to confirm input.
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Switch ignition off.
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Check wiring using appropriate wiring diagram.
Wiring, checking