DTC P1111 Acura

IAT Sensor Circuit High Input (Intermittent)

IAT Sensor Circuit High Input (Intermittent)

Description

Engine started, engine runtime over 4 minutes, ECT sensor more than 140ºF, vehicle speed under 20 mph, MAF sensor less than 20 g sec, and the PCM detected an unexpected high voltage signal of over 4.90v [Scan Tool reads -38ºF] on the IAT sensor circuit fo

Cause and Solution

IAT sensor signal circuit is open (an intermittent fault)
IAT sensor is damaged or has failed (an intermittent fault)

Video Guide

Duration: PT4M12S | Uploaded: 2020-04-18

Diagnostic Info

  • DTC Code: P1111
  • Brand: Acura
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