Passat V6-2.8L (ATQ) (2004)
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Check wires between test box and 2-pin connector for open circuit according to wiring diagram.
Terminal 1 + socket 85
Terminal 2 + socket 108
Wire resistance: max. 1.5 ohms
Continuation for all vehicles
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Also check wires for short circuit to each other, to vehicle Ground (GND) and to B+.
Specified value: Infinite ohms
If no malfunctions are found in wire:
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Measure resistance at Intake Air Temperature (IAT) Sensor -G42-
Range A displays resistance values for the temperature range of 0 to 50 degrees C, range B displays resistance values for the temperature range of
50 to 100 degrees C.
Read-out examples:
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30 degrees C is in range A and corresponds to a resistance of 1.5 to 2.0 kohms
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80 degrees C is in range B and corresponds to a resistance of 275 to 375 ohms
If specified value is not obtained:
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Replace Intake Air Temperature (IAT) Sensor -G42-.
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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
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Generate readiness code. See: Testing and Inspection/Monitors, Trips, Drive Cycles and Readiness Codes