OBD Guide

U0612

Lost Communication With Intake Air Temperature Sensor 1 Bank 2

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$6–28 (est.)

Symptoms

  • Check Engine light comes on
  • Increased fuel consumption
  • Reduced engine power
  • Unstable engine operation at idle
  • Possible problems starting the engine

Causes

  • Open or short circuit in the sensor circuit
  • Intake air temperature sensor malfunction
  • Poor contact in the sensor connector
  • Wiring harness damage
  • Malfunction of the engine control unit (rare)

How to Fix

  1. Check the integrity of the sensor circuit
  2. Check connections and sensor connector
  3. Test the intake air temperature sensor
  4. Replace sensor if necessary
  5. Check and replace wiring harness if necessary

Related codes

Error U0612 by Vehicle Brand