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Home >> Audi >> 2011 >> TT Base, 2D Convertible >> Repair and Diagnosis (Single Page) >> Engine Performance >> Remove, Overhaul & Install >> 2.0L - Generic Scan Tool - Engine Code(S): CETA (Roadster) >> St Generic Scan Tool >> Diagnosis And Testing >> Diagnostic Procedures >> Intake Air Temperature Sensor, Checking >> Testing If Display Approx. -40° C Or Approx. -46° C:
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Testing If Display Approx. -40° C Or Approx. -46° C:

-- Disconnect the Intake Air Temperature (IAT) Sensor -G42- electrical harness connector -1-.

Fig 1: Disconnecting Electrical Harness Connector From Intake Air Temperature (IAT) Sensor G299
GWWA24-10142Courtesy of AUDI OF AMERICA, LLC

-- Using a jumper wire, connect the Intake Air Temperature (IAT) Sensor -G42- electrical harness connector terminals 1 to 2.

-- Check the value indicated on the scan tool display.

Fig 2: 2-Pin Electrical Connector & Terminals
GWWA28-0040Courtesy of AUDI OF AMERICA, LLC

If indication jumps to approx. 140° C:

-- End diagnosis and switch ignition off.

-- Replace the Intake Air Temperature (IAT) Sensor -G42-. Refer to appropriate service information.

If indication remains at approx. -40° C or -46° C:

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