Your Santa Fe’s PCM will set P0650 when it detects an issue with the malfunction indicator lamp (MIL), also commonly referred to as the check engine light.
The biggest issue with this code is that it’ll often sneak up on you since, by definition, it can’t alert you to its presence.
The most common causes of P0650 are a burned-out check engine bulb or a wiring issue going from the bulb to the PCM.
Here are both parts of the definition of P0650 explained:
MIL stands for malfunction indicator lamp (commonly referred to as the check engine light). It will illuminate whenever there is a trouble code stored in your Santa Fe’s PCM memory.
Ironically, since this code has to do with the check engine light, it may not even turn it on, or it may be on all of the time.
The circuit that controls the check engine light has failed to complete its readiness check when the ignition is turned on. There are several reasons that can cause this. We’ll cover what order to tackle them in the causes + diagnosis section below.
As far as the way your vehicle runs, if P0650 is the only code you have, there should be no noticeable drivability symptoms whatsoever.
Here’s how to go about diagnosing P0650 in the Hyundai Santa Fe.
Whenever you put your key in the ignition and turn it to the run position, the check engine light should stay on for a few seconds and then turn off. If it doesn’t do this, either the bulb is burnt out, there’s a wiring problem, or the PCM is not commanding the MIL circuit to turn on.
If your Santa Fe’s MIL is stuck on and won’t turn off, jump to step 5.
With a good scan tool, you can use it to command the MIL to turn on. If it doesn’t, verify that the circuit is hot leaving the PCM.
Some makes and models have MIL fuses. If there is one, make sure that it is not burned out. If it is, replace it. If it goes out again, you have a wiring problem between it and your Santa Fe’s PCM.
Are any of the other lights not working on the instrument cluster? They should all turn on for a moment when the key is placed in the run position (except the turn signals).
If a few of them aren’t working, it indicates there’s likely an issue with the wiring in the instrument cluster itself. If a few of them appear bad, it’s likely an issue with the cluster that’s causing P0650.
At this point, assuming the MIL light is not coming on but everything else on the cluster is working fine, it’s time to check to see if the bulb is bad.
Get a new bulb and throw it in there. That’ll more than likely be the fix for P0650 in your Hyundai Santa Fe at this point. If it’s not, it’s time to check the wiring harness.
With the harness disconnected from the instrument panel, check if the circuit is hot where it would plug into the instrument panel. If it is, but the bulb was off (and you’ve replaced it), there’s an issue with the instrument cluster.
If it’s not hot at the cluster harness, you’ve got a wiring problem somewhere between the PCM and the harness.
If the bulb is illuminated and P0650 is the only code your Santa Fe has, clear the code and see if the MIL turns off and stays off. It may have just been a one-off thing. If it comes back, then you should start looking at the wiring.
If the harness is hot at the instrument cluster with the MIL circuit commanded off, then you know there’s a short somewhere between the MIL and PCM.
With the instrument panel disconnected, check the MIL pin to see if it’s hot (with the MIL commanded off). If it is, you know the problem is the harness under the dash. If it is not hot, it’s likely an instrument cluster issue.
On the rarest of occasions, the PCM can be the cause of failure with P0650. You should check to see if the harness pin for the MIL at the PCM is hot when it is commanded on. If it stays cold, that would indicate the PCM may need to be replaced or reflashed.
P0650 in the Hyundai Santa Fe is usually caused by either a bad instrument cluster, wiring harness, PCM, or most likely a bad bulb.
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Ошибка P0650 HYUNDAI является диагностическим кодом, который указывает на проблему в работе системы управления двигателем. Код означает, что контроллер двигателя не может получить сигнал от датчика уровня топлива, который находится в баке автомобиля.
Симптомы ошибки P0650 HYUNDAI могут варьироваться в зависимости от модели автомобиля и серьезности проблемы. Некоторые из них могут включать:
Ошибка P0650 HYUNDAI связана с повреждением или неисправностью датчика уровня топлива. Это может быть вызвано различными причинами, включая:
Для диагностики ошибки P0650 HYUNDAI механик может использовать специальное оборудование для сканирования кодов ошибок. Он также может проверить проводку и разъемы датчика уровня топлива на наличие повреждений или коррозии.
Ошибка P0650 HYUNDAI может привести к неравномерной работе двигателя и потере мощности. Если проблема не будет устранена, это может привести к более серьезным проблемам с двигателем и повреждению других компонентов.
Для устранения ошибки P0650 HYUNDAI механик должен проверить датчик уровня топлива на наличие повреждений или неисправностей. Если датчик неисправен, его необходимо заменить. Если проблема в проводке или разъемах, их необходимо заменить или отремонтировать.
Коды, связанные с ошибкой P0650 HYUNDAI, могут включать: