TT Coupe L4-1.8L Turbo (AWP) (2005)
If no fault is detected in the wiring:
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Perform a resistance measurement on Intake Air Temperature (IAT) Sensor -G42-.
Area A shows resistance values for temperature range 0 to 50 degrees C, area B shows values for temperature range 50 to 100 degrees C.
Example:
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30 degrees C is in area A and corresponds to a resistance of 1.5 to 2.0 k Ohms
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80 degrees C is in area B and corresponds to a resistance of 275 to 375 Ohms
If the specification is not obtained:
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Replace Intake Air Temperature (IAT) Sensor -G42-.
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Erase DTC memory of ECM. See: Testing and Inspection/Scan Tool Testing and Procedures/Diagnostic Mode 04 - Erase DTC Memory
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Generate readiness code. See: Testing and Inspection/Monitors, Trips, Drive Cycles and Readiness Codes/Generate Readiness Code
If no malfunctions are detected in the wires and the resistance values are OK:
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Replace Motronic Engine Control Module (ECM) -J220-.