Honda City ABS error - wicked problem

[frost2]

Hi Sir/experts/ experienced,

I am seeking some advise for my 2010 honda city.


So it started when my breaks (front left) wasnt working. I had it checked and it turns out the abs is not working.

I canvassed at honda and it would cost about 16k-20k to fix. So like any other matipid, went to banawe and got surplus parts.

I had the whole abs replaced for 5,500. It actually working well now brakes are all ok.

HOWEVER, after driving a few kms, the ABS warning light and break light turned on and this is were the wicked problem started.

I went back to the shop I got the abs, the checked and had it scanned and error is: 71-33 “right-front pr left-rear different diameter tyre malfunction”.

Actions taken so far:

I had it replaced by a new abs from the same shop but still SAME ERROR.

I had my tires balanced and aligned and still same error

I checked all tires are same size naman.

Guys at the shop didnt want to replace the abs sensor since it is not showing up as the error

Questions/help needed:
- has anyone had this error before? What did you do?
- is this common for honda city 2010
- any recomendation on a place to have this checked? Yung mura sana pero magaling.
- in case sensor talaga need palitan. Any reco where to buy, how much?

Thanks in advance guys, hope to get some clarity on my problem.





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[mda]

Hi Sir/experts/ experienced,

I am seeking some advise for my 2010 honda city.


So it started when my breaks (front left) wasnt working. I had it checked and it turns out the abs is not working.

I canvassed at honda and it would cost about 16k-20k to fix. So like any other matipid, went to banawe and got surplus parts.

I had the whole abs replaced for 5,500. It actually working well now brakes are all ok.

HOWEVER, after driving a few kms, the ABS warning light and break light turned on and this is were the wicked problem started.

I went back to the shop I got the abs, the checked and had it scanned and error is: 71-33 “right-front pr left-rear different diameter tyre malfunction”.

Actions taken so far:

I had it replaced by a new abs from the same shop but still SAME ERROR.

I had my tires balanced and aligned and still same error

I checked all tires are same size naman.

Guys at the shop didnt want to replace the abs sensor since it is not showing up as the error

Questions/help needed:
- has anyone had this error before? What did you do?
- is this common for honda city 2010
- any recomendation on a place to have this checked? Yung mura sana pero magaling.
- in case sensor talaga need palitan. Any reco where to buy, how much?

Thanks in advance guys, hope to get some clarity on my problem.





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Balik casa. ABS not something I'd like playing around with...

[benchph1]

I also have a 2010 city. Never experienced that issue.

If they already replaced the ABS pump and the warning light is still on, it may be one of the wheel sensors. Get your car scanned at a shop that can also “detect” faults with the ABS system, so it can tell you exactly what component is faulty.


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[StockEngine]

abs pump pinalitan? normally yun speed sensor ang nasisira or madumi...

[frost2]

abs pump pinalitan? normally yun speed sensor ang nasisira or madumi...

Yes sir. Sira talaga, walang fluid na lumalabas kapag nag break ako.




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[StockEngine]

Yes sir. Sira talaga, walang fluid na lumalabas kapag nag break ako.




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if no fluid is coming out, it probably wasnt bled properly.

during hard braking abs senses wheel lock, if it does it will cyclicly remove/apply hydraulic pressure. if you see tire tracks that are on and off.. thats abs working on a vehicle in an emergency braking scenario.

[mina_nuka]

First, there is no listing for code 71-31.

Second, if it was tire position 2 and tire position 3 ( FR and RL), it would be code 71-21 or code 71-27.


Follow these steps.


http://hondafitjazz.com/manual3/en/h.../index162.html

[frost2]

I also have a 2010 city. Never experienced that issue.

If they already replaced the ABS pump and the warning light is still on, it may be one of the wheel sensors. Get your car scanned at a shop that can also “detect” faults with the ABS system, so it can tell you exactly what component is faulty.


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Thanks for the reply, i got it scanned po sir. It said 71-33 FR or RL tyre diameter error. I am not sure what this error means exactly. I have the same tires size for all.


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[StockEngine]

the abs probably compares diagonally aka fr-rl and fl-rr


front left - rear left
front left - rear right

im guessing comparator detects too much speed difference between the two sensors.

one sensor is probably defective or dirty

[frost2]

the abs probably compares diagonally aka fr-rl and fl-rr


front left - rear left
front left - rear right

im guessing comparator detects too much speed difference between the two sensors.

one sensor is probably defective or dirty

Interesting. Let me try having the sensors cleaned. Ty sir.


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[StockEngine]

the abs probably compares diagonally aka fr-rl and fl-rr


front right - rear left
front left - rear right

im guessing comparator detects too much speed difference between the two sensors.

one sensor is probably defective or dirty

correction

[StockEngine]

nag pa undercoating ka pala. baka one small mist got onto the sensor surface...

[benchph1]

What stockengine said is correct. Could be just dirty sensors.

The ABS pump could have been clogged with dirty brake fluid. This applies to all cars. ABS or Non-ABS. You should flush the brake system when you see that the fluid inside the reservoir has turned black. You should be able to see through the bottom of the reservoir if the fluid is clean.


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[oj88]

The 'new' ABS could be faulty. Fix/clean the old ABS and put it back.

[mina_nuka]

I had it replaced by a new abs from the same shop but still SAME ERROR.



Which part of the system in particular was replaced? The wiring, the pump, the EBCM, the sensors, the reluctor wheels? Or all of the above. No specifics so you might be talking about all the hardware.





If the tires and wheels were not changed and the diameters are the same, chances are that the ac signal from any or both these tire positions picked up ferrous debris in front of the sensor tip since these sensors are magnetic tipped. If you had recent brake job involving resurfacing of the brake rotors this prone to happening or if your brake pads wore out to the point it's scaping the rotor it will make ferrous dust that clings to the magnetic sensor

[frost2]

I had it replaced by a new abs from the same shop but still SAME ERROR.



Which part of the system in particular was replaced? The wiring, the pump, the EBCM, the sensors, the reluctor wheels? Or all of the above. No specifics so you might be talking about all the hardware.





If the tires and wheels were not changed and the diameters are the same, chances are that the ac signal from any or both these tire positions picked up ferrous debris in front of the sensor tip since these sensors are magnetic tipped. If you had recent brake job involving resurfacing of the brake rotors this prone to happening or if your brake pads wore out to the point it's scaping the rotor it will make ferrous dust that clings to the magnetic sensor

Thanks for the reply sir, I believed just the abs pump was replaced.

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

O


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[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]

What stockengine said is correct. Could be just dirty sensors.

The ABS pump could have been clogged with dirty brake fluid. This applies to all cars. ABS or Non-ABS. You should flush the brake system when you see that the fluid inside the reservoir has turned black. You should be able to see through the bottom of the reservoir if the fluid is clean.


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Thanks sir! Very helpful since i would know what to check. I have a hunch on what might have caused this. I had undercoating service, it was done very poorly since the tired werent even removed. And brake system not covered with news paper while spraying.

I saw some DIY vids on how to clean the abs sensor. I will give it a shot, hope it works.


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[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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