All codes › P0112
P0112: Intake Air Temperature Sensor 1 Circuit Low
What it means
The intake air temperature sensor reports a very hot reading (low voltage), usually a short.
Severity: Low Minor fueling impact; may affect cold starts.
Common causes
- Failed IAT sensor
- Shorted wiring
- Damaged MAF assembly (if IAT built in)
- Corroded connector
Most common causes first. Exact causes vary by make, model and engine.
Can I fix it myself?
Often DIY. IAT is often a plug-in sensor in the air box or built into the MAF.
Repair cost
SEEDED ESTIMATE Roughly $40–$200
Most likely repair: temp/pressure/position sensor. Diagnosis fees, taxes and other causes are not included.
| Line | Low | High | Basis |
|---|---|---|---|
| Temp/pressure/position sensor | $15 | $120 | Editorial placeholder, parts price not yet cited |
| Labor 0.2–0.5 hr | $20 | $80 | $100–$160/hr, shop survey |
⚠️ This is an editorial placeholder range for this type of repair. It is not based on real invoices or licensed pricing data yet. Real ranges will appear here once enough reader invoices for P0112 are verified.
Verified reader invoices for P0112: 0. Share your repair bill to help build real costs.
Tools that can read P0112
- ScanFixAI: Pro $29.99/mo or $249.99/yr
- OBDAI: Annual PRO bundle $299
- BlueDriver Pro Next-Gen: $119.95 list ($99.95 sale seen)
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