P0052 — HO2S Heater Control Circuit High Bank 2 Sensor 1

What Does P0052 Mean?

P0052 is a diagnostic trouble code indicating: HO2S Heater Control Circuit High Bank 2 Sensor 1. This code relates to the fuel and air metering system. It has been reported in NHTSA complaints across 2 different vehicle models.

Symptoms of P0052

⚠️ Hesitation during acceleration

Common Causes

🔍 Sensor or control module malfunction

P0052 Reports by Year

2019

1

2015

1

Real Owner Reports

From NHTSA complaint database — actual owner descriptions.

"ABOUT 2 WEEKS AGO MY TRUCK WAS HESITATING AND MY CHECK ENGINE/OFF TRAC LIGHT WAS ON. THE CAR WOULD NOT GO ABOVE 40MPH ON CITY STREETS OR HIGHWAY. I WENT TO A TOYOTA DEALER IN PUERTO RICO, THEY SAID THE CODES WERE P0052, P0456, P2140, P2442 SECONDARY AIR INJECTION SYSTEM IS BAD AND WOULD COST $2,458."
— Toyota Tacoma owner, 07/13/2019

"THE CAR CUT OFF 3 TIMES IN ONE DAY FOR NO APPARENT REASON; ONCE WHILE PULLING OUT INTO ONCOMING TRAFFIC, THEN AFTER FUELING THE CAR AND PULLING OUT OF THE GAS STATION INTO ONCOMING TRAFFIC, THEN WHILE DRIVING DOWN THE STREET AT ABOUT 35 MPH. FORTUNATELY, I SAFELY GUIDED THE CAR TO THE SIDE OF THE RO"
— Chrysler 300 owner, 05/27/2015

Source: NHTSA Complaints Database

Most Reported Vehicles for P0052

Based on NHTSA owner complaint data.

#	Vehicle	Reports
1	TOYOTA TACOMA
2	CHRYSLER 300

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+).

Reported Repair Costs for P0052

Based on 3 owner-reported repair costs from NHTSA complaints.

Low End

$501

Typical

$2458

High End

$2458

⚠️ These are owner-reported costs, not estimates. Actual costs vary by location, labor rates, and root cause. Source: NHTSA complaints database.

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
🔧 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.

P0052: HO2S Heater Control Circuit High Bank 2 Sensor 1