audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

Intake Air Temperature Sensor|Testing and Inspection|Page 2448 > < Intake Air Temperature Sensor|Testing and Inspection
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Check the specified value for the Intake Air Temperature (IAT) sensor in display field 4:

Display Group 4

Checking wire connections

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Connect test box V.A.G 1598/31 at wiring harness to engine control module, the engine control module is not to be connected.

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Check the following wire connections for open circuit and short circuit between Ground (GND) and B+:

Harness connector terminal

Tester V.A.G 1598/31 socket

1

85

2

108

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Check both wires for short circuit to each other.

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Repair open circuit or short circuit if necessary.

If no malfunctions are found in wires:

Checking sensor

Intake Air Temperature Sensor|Testing and Inspection|Page 2448 > < Intake Air Temperature Sensor|Testing and Inspection