P0112low severityPowertrain
IAT Sensor 1 Circuit Low Input
on 2007 Toyota Avalon 3.5L V6 · FWD
What this code means
The IAT sensor circuit voltage is lower than expected, indicating a very high temperature or short.
Symptoms
- Check Engine Light
- Rich fuel mixture
- Poor economy
Common causes
- Short to ground in IAT circuit
- Faulty sensor
- Water intrusion in connector
Diagnostic steps
- Test sensor resistance
- Check for shorts to ground
- Inspect connector for moisture
Repair notes
Repair short or replace sensor.
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