Causes and Fixes P0037 Code: HO2S Heater Control Circuit Low (Bank 1 Sensor 2)
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- Опубліковано 12 лип 2024
- How to fix an engine P0037 OBDII DTC Code: HO2S Heater Control Circuit Low (Bank 1 Sensor 2)
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Possible Causes of a P0037 Code:
Failed O2 A/F (Air/Fuel) Heater Sensor
Wiring Open or Short
Blown Fuse
Troubleshooting Steps:
Locate Sensor
Test Sensor
Check wiring and fuses
Replace if bad
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Great Job, Thanks so much for getting straight to the point and for teaching in such an amazing way!
Many thanks - really good useful video :)
Subscribed mate, wonderful video
I have a 03 a6 4.2 I scanned and got this code will this cause the car to ride rough and not get up to speed?
Hi, if the second catalytic converter has been removed, can the system still throw up a P0037 code?
If the O2 sensor fails causing the check engine light to be on, is that somehow in series also causing the Trac and VSC lights to be on?
It can vary between vehicles, but yes, often, When the computer sees an error in the system, it will shut down assisted driving, such as traction control.
How could it be a blown fuse, wouldn’t it have a variety of codes for the other sensors? There isn’t individual fuses for each sensor…right?
Parts stores have Left or Right. Is bank 1 "Right" in your diagram?
The bank-1 and bank-2 locations will vary from engine to engine, but bank-1 is on the number-1 cylinder side. Google your engine firing order and look at the images; it will usually have it.
What if everything is ok new sensor etc and i still get circuit malfunction in sensor 1. Can it be the sparkplugs?
Spark plugs would cause another code. I would check the wiring and look for any exhaust leaks.
that means you replaced a sensor that was working perfectly. You should check if you have a leak somewhere in the exhaust because if it leaks before reaching the muffler, the engine temperature increases and you may continue to have the same codes or damage the engine seals.
Ive got a 03 350 z, replaced all four sensors, drive for a little bit and heater circuit bank 1 sensor 2 comes up. replace them all a second time, and still comes up with that reading. HELP.
replace catalytic converter