Back to 2009 Ram 1500

2009 RAM 1500

4.7L V8RWDAUTOMATICgas
2 active safety recalls on this vehicle — view recalls
Repairs0Labor593Torque4873Fluid7DTC866Battery1Maintenance0Recalls2
P0110low severityPowertrain

Intake Air Temperature (IAT) Sensor 1 Circuit

on 2009 Ram 1500 4.7L V8 · 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

Building an app?
Free API access to all this data — 50 requests/day, no card required.
Get an API key →
Run a shop?
Manage repairs, estimates, and customers with ShopBase — $249/mo, all features included.
Try ShopBase →