2015 CADILLAC ATS

2.0L Turbo I4RWDAUTOMATICgasturbo
3 active safety recalls on this vehicle — view recalls
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P0110low severityPowertrain

Intake Air Temperature (IAT) Sensor 1 Circuit

on 2015 Cadillac ATS 2.0L Turbo I4 · RWD

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

  1. Test IAT sensor resistance at known temperature
  2. Inspect wiring and connector
  3. Compare IAT reading to ECT at cold start

Repair notes

Replace IAT sensor or repair wiring.

Other Powertrain codes on this vehicle

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