P0237 — Turbocharger/Supercharger Boost Sensor A Circuit Low

What Does P0237 Mean?

P0237 is a diagnostic trouble code indicating: Turbocharger/Supercharger Boost Sensor A Circuit Low. This code relates to the fuel injection system. It has been reported in NHTSA complaints across 2 different vehicle models.

Symptoms of P0237

⚠️ Check engine light illuminated

Common Causes

🔍 Failed PCV valve
🔍 Sensor or control module malfunction

P0237 Reports by Year

2018

1

2013

1

Real Owner Reports

From NHTSA complaint database — actual owner descriptions.

"EVEN AFTER FREE REPAIR DUE TO BEING COVERED UNDER WARRANTY, THE NEW PCV VALVE AND COVER ARE LEAKING AGAIN. ENGINE IDLES ROUGHLY, BOTH IN PARK AND IN DRIVE. THIS IS A KNOWN ISSUE WITH CHEVROLET CRUZE, BUT MY VIN IS NOT PART OF THE RECALL. MAIN ERROR CODE P0171- BANK 1 SYSTEM TOO LEAN- IS BEING PICKE"
— Chevrolet Cruze owner, 04/10/2018

"DRIVING ON HIGHWAY ON 12/15/13 AND AS I ACCELERATED, I LOST POWER AND "CHECK ENGINE LIGHT" CAME ON. CAR FELL TO 50MPH AND I EXITED HIGHWAY IMMEDIATELY, STOPPED THE CAR, RE-STARTED AND THE CAR AND LIGHT WAS STILL ON. SHOWED ERROR CODE G450 AND THE "EXHAUST PRESSURE SENSOR 1" WAS REPLACED BY DEALER IN"
— Volkswagen Jetta owner, 12/15/2013

Source: NHTSA Complaints Database

Most Reported Vehicles for P0237

Based on NHTSA owner complaint data.

#	Vehicle	Reports
1	CHEVROLET CRUZE
2	VOLKSWAGEN JETTA

Frequently Asked Questions

Can I drive with this code?

It depends on the severity. If the vehicle runs normally, short trips are usually OK. If you notice performance issues, drivability problems, or warning lights beyond the check engine light, get it checked soon.

Will this code clear itself?

Some codes clear automatically after the underlying issue is fixed and several drive cycles pass. But the root cause must be addressed first.

How do I find the exact cause?

A code alone doesn't pinpoint the failed part. You need a diagnostic scan ($50-150 at most shops) that reads freeze frame data and live sensor readings to identify the specific component.

What To Do Next

Possible Fixes

🔧 Have the code scanned with a professional-grade scanner to read freeze frame data
🔧 Test the relevant sensor(s) with a multimeter before replacing
🔧 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.

P0237: Turbocharger/Supercharger Boost Sensor A Circuit Low