P0110low severityPowertrain
Intake Air Temperature (IAT) Sensor 1 Circuit
on 2011 Audi TT 2.0L Turbo I4 · AWD
What this code means
General malfunction in the intake air temperature sensor circuit.
Symptoms
- Check Engine Light
- Poor fuel economy
- Hard starting in cold weather
- Incorrect idle speed
Common causes
- Faulty IAT sensor
- Wiring issue
- Corroded connector
- Sensor contaminated
Diagnostic steps
- Test IAT sensor resistance at known temperature
- Inspect wiring and connector
- Compare IAT reading to ECT at cold start
Repair notes
Replace IAT sensor or repair wiring.
Other Powertrain codes on this vehicle
P0001
Fuel Volume Regulator Control Circuit/Open
P0002
Fuel Volume Regulator Control Circuit Range/Performance
P0003
Fuel Volume Regulator Control Circuit Low
P0004
Fuel Volume Regulator Control Circuit High
P0010
Intake Camshaft Position Actuator Circuit/Open Bank 1
P0011
Intake Camshaft Position Timing Over-Advanced Bank 1
P0012
Intake Camshaft Position Timing Over-Retarded Bank 1
P0013
Exhaust Camshaft Position Actuator Circuit/Open Bank 1
P0014
Exhaust Camshaft Position Timing Over-Advanced Bank 1
P0015
Exhaust Camshaft Position Timing Over-Retarded Bank 1