Honda City ABS error - wicked problem

[mina_nuka]

On possible debris on the magnetic tip, is this something that can be cleaned?




Yes, with an OEM toothbrush on the reluctor wheel teeth and special paper towel dampened in mineral oil to wipe the sensor tip.












Just kidding on the OEM and special.

[frost2]

On possible debris on the magnetic tip, is this something that can be cleaned?




Yes, with an OEM toothbrush on the reluctor wheel teeth and special paper towel dampened in mineral oil to wipe the sensor tip.












Just kidding on the OEM and special.

Haha. Thanks sir! Will try ko DIY clean.


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[oj88]

It could also mean that the sensor is not picking up all the teeth on the hub. So instead of a continuous steam of one and zeroes, it's skipping some of the teeth and the ABS computer interprets it as a slow-moving wheel or it having a different-sized (larger) wheel.

Check if the sensor distance has changed.

[mina_nuka]

It could also mean that the sensor is not picking up all the teeth on the hub. So instead of a continuous steam of one and zeroes, it's skipping some of the teeth and the ABS computer interprets it as a slow-moving wheel or it having a different-sized (larger) wheel.

Check if the sensor distance has changed.

The wheel speed sensors do not send 1s and 0s. The signals are analog AC not digital signals. If you watch the waveform on an oscilloscope, the pattern is not square waveform

[oj88]

The wheel speed sensors do not send 1s and 0s. The signals are analog AC not digital signals. If you watch the waveform on an oscilloscope, the pattern is not square waveform

That's nit-picking. They may be analog at the sensor input but they are converted to and processed as digital signals (PWM), in-computer. The ABS computer only cares about counting the number of peaks per unit of time to determine the wheel speed. If one wheel is perceived to be slower than the others (ie. The sensor is not detecting all of the teeth), the computer might mistaken it having a larger-diameter wheel (ie. turning slower than the others).

[mina_nuka]

That's nit-picking. They may be analog at the sensor input but they are converted to and processed as digital signals (PWM), in-computer. The ABS computer only cares about counting the number of peaks per unit of time to determine the wheel speed. If one wheel is perceived to be slower than the others (ie. The sensor is not detecting all of the teeth), the computer might mistaken it having a larger-diameter wheel (ie. turning slower than the others).

Clarifying not nit-picking.



Not to make things more confusing to those who doesn't know.

[oj88]

Clarifying not nit-picking.



Not to make things more confusing to those who doesn't know.

I understand. But in all intents and purposes, the input may be electrically analog, but the information being collected is digital.... that's what I meant.

[mina_nuka]

I understand. But in all intents and purposes, the input may be electrically analog, but the information being collected is digital.... that's what I meant.

That's clarification.


Not to make you take your hypertension pills.

[oj88]

No, I'm calm as calm can be. Posted texts doesn't do justice to the actual expressed human emotion.

It just so happen that when talking about the intricate workings of motor vehicles, you're in my wheelhouse.

[dr. d]

wow!
a lot of technicalities.
i wonder, does TS know how to go about all this?
heh heh.

[oj88]

wow!
a lot of technicalities.
i wonder, does TS know how to go about all this?
heh heh.

Well, cars are a fair bit technical to maintain, that's why it's a multi-billion peso industry. And since the TS isn't considering having it repaired by the dealer, and none have actually had that same issue happen to them, there's no other way but to speculate, albeit, do educated guesses, on what the problem might be. In other words, we're all just throwing good ideas. It's really up the TS to read up some more about the topic and evaluate the ideas, then try to fix it himself or through a 3rd-party mechanic.

He can always go the non-technical way and bring it to the dealer. Though, he would have to pay a handsome fee.

[dr. d]

Well, cars are a fair bit technical to maintain, that's why it's a multi-billion peso industry. And since the TS isn't considering having it repaired by the dealer, and none have actually had that same issue happen to them, there's no other way but to speculate, albeit, do educated guesses, on what the problem might be. In other words, we're all just throwing good ideas. It's really up the TS to read up some more about the topic and evaluate the ideas, then try to fix it himself or through a 3rd-party mechanic.

my guess is, dadalhin niya sa mekaniko.
i think TS is a non-tinkerer.
good luck, TS.

[LN106G]

In case the ABS sensors are accidentally (or intentionally) sprayed with an undercoat, is it possible for them to be cleaned thoroughly to function flawlessly like it should? if not, you have no choice but to replace them.....

[frost2]

Update lang: i had the sensors cleaned but the error still persist. I would have it scanned again then change sensors.

Any suggested suppliers? Yung mura. ;)


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[frost2]

Update: replaced abs sensor right front and rear left. But issue still persist. Dunno what is next?!


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[benchph1]

What may error pa din? Have you tried to reset after replacing the sensors?

Sinusumpa mo na siguro undercoat ngayon. Hehehe

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[Jorivba]

Update: replaced abs sensor right front and rear left. But issue still persist. Dunno what is next?!


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Hello did you fix/ clear your abs codes/ fault? Because im hving the same problem exactly as yours. Mine is 2009 model. Did also exactly same as yours. Replaced abs module, sensor and clean wheel bearing but still code 71 - 33.
Really same as you did."parehong pareho". What you explained is the same occurs and did in my 2009 city.

My question is did you already fix it and clear the codes?
Need your inputs what you did to clear the codes.
Or we have the same problem until now?
This happens since october 2019 until now.
Tnx
☹☹☹☹