Jetta GLS VR6 V6-2.8L (AFP) (2001)
If no malfunctions are found in wire:
Vehicles with engine code AFP
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Measure resistance at Intake Air Temperature (IAT) Sensor -G42-, terminals 1 (signal) and 3 (Ground -GND-).
Vehicles with engine code BDF
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Measure resistance at Intake Air Temperature (IAT) Sensor -G42-, terminals 1 (signal) and 3 (Ground -GND-).
Continuation for all vehicles
Range A displays resistance values for the temperature range of 0...50 degree C, range B displays resistance values for the temperature range of 50...100
degee C.
Read-out examples:
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30 degree C is in range A and corresponds to a resistance of 1.5 to 2.0 kOhms
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80 degree C is in range B and corresponds to a resistance of 275 to 375 Ohm
If specified value is not obtained:
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Replace Mass Air Flow (MAF) Sensor -G70-:
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Vehicles with engine code AFP, item 4,
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Vehicles with engine code BDF, item 6.
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Erase DTC memory of Engine Control Module (ECM), Diagnostic mode 4: Reset/erase diagnostic data.
See: Testing and Inspection/Scan Tool Testing and Procedures/With Generic Scan Tool/Diagnostic Mode 4: Reset/Erase Diagnostic Data