A4 Cabriolet L4-1.8L Turbo (AMB) (2005)
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Check for open circuit, short to positive, or short to ground in following wiring connections:
Connector
Test box V.A.G 1598/31
terminal
Socket
1
85
2
108
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Test for short circuits between two wires.
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Repair any open/short circuit as necessary.
If no wiring problems are found:
Checking sensor
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Connect multimeter to sensor to measure resistance.
Specifications
Temperature degree C
Resistance k Ohms
-20
approx. 13.8
0
approx. 5.5
20
approx. 2.4
40
approx. 1.1
60
approx. 0.6
If the specified values are not obtained:
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Replace Intake Air Temperature (IAT) sensor -G42-.