P0072 — Ambient Air Temperature Sensor Circuit A Low

What Does P0072 Mean?

P0072 is a diagnostic trouble code indicating: Ambient Air Temperature Sensor Circuit A Low. This code relates to the fuel and air metering system. It has been reported in NHTSA complaints across 1 different vehicle models.

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

Source: NHTSA Complaints Database

Most Reported Vehicles for P0072

Based on NHTSA owner complaint data.

#	Vehicle	Reports
1	JEEP RENEGADE

Frequently Asked Questions

Can I drive with this code?

You can usually drive short distances, but fuel economy will suffer and emissions will be higher. Get it diagnosed within a week.

Will this code cause my car to fail emissions?

Yes — any active check engine light will cause an automatic emissions test failure in most states.

How much does it typically cost to fix?

Depends on the root cause. Simple fixes like a gas cap ($5-15) to sensor replacement ($150-300) to more complex repairs ($500+).

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)

1
Find your vehicle above
Click your make and model for real owner reports and common causes specific to your vehicle.
2
Check for recalls
Go to nhtsa.gov/recalls and enter your VIN. Free repairs if covered.
3
Get a professional diagnosis
A code alone doesn't identify the exact failed part. A diagnostic ($50–$150) pinpoints the root cause.

P0072: Ambient Air Temperature Sensor Circuit A Low