Honda City ABS error - wicked problem

[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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