2001 Audi A4 2.8L P0112 (pd) - AIT problem?

[BleepyBoop]

Having a problem with my Audi A4. The CEL is on, and re-appears whenever I clear the codes. The code I am getting is P0112 (pd) - Air intake temperature sensor - circuit - low input. Any ideas on where to start? - is it the wire harness, the actual sensor?

Thanks!