P0073: Ambient Air Temperature Sensor Circuit A High
What Does P0073 Mean?
P0073 is a diagnostic trouble code indicating: Ambient Air Temperature Sensor Circuit A High. This code relates to the fuel and air metering system. It has been reported in NHTSA complaints across 2 different vehicle models.
P0073 Reports by Year
Real Owner Reports
From NHTSA complaint database — actual owner descriptions.
"I recently had the following situation. Tuesday, Dec. 13th, 2022 a big storm hit, showered snow on us ALL day. My Jeep was parked with the passenger side to the north... just setting the scene. Rain, ice, & snow coated my Renegade when I left work and I noticed that the dash temp reading was not w"
— Jeep Renegade owner, 12/13/2022
"I KEEP GETTING WARNING LIGHT THAT, DRIVER SIDE AIRBAG FAULT ENGINE CODE P0073 AND VEHICLE OVER-SPEED CONDITION ENGINE CODE PO297. IT COME ON WHEN DRIVING."
— Ford Explorer owner, 02/02/2018
Source: NHTSA Complaints Database
Most Reported Vehicles for P0073
Based on NHTSA owner complaint data.
| # | Vehicle | Reports |
|---|---|---|
| 1 | FORD EXPLORER | |
| 2 | JEEP RENEGADE |
Frequently Asked Questions
Can I drive with this code?
Will this code cause my car to fail emissions?
How much does it typically cost to fix?
What To Do Next
Possible Fixes
- 🔧 Have the code scanned with a professional-grade scanner to read freeze frame data
- 🔧 Clean or replace the mass air flow (MAF) sensor; check for vacuum leaks
- 🔧 If DIY repair isn't feasible, get a diagnostic from a trusted mechanic ($50-150)
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1
Find your vehicle above
Click your make and model for real owner reports and common causes specific to your vehicle.
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2
Check for recalls
Go to nhtsa.gov/recalls and enter your VIN. Free repairs if covered.
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Get a professional diagnosis
A code alone doesn't identify the exact failed part. A diagnostic ($50–$150) pinpoints the root cause.