TT Coupe L4-1.8L Turbo (ATC) (2001)
-
Check the specified value for the Intake Air Temperature (IAT) sensor in display field 4:
Display Group 4
Checking wire connections
-
Connect test box V.A.G 1598/31 at wiring harness to engine control module, the engine control module is not to be connected.
-
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
-
Check both wires for short circuit to each other.
-
Repair open circuit or short circuit if necessary.
If no malfunctions are found in wires:
Checking sensor