Hi all.
I recently got a CB1100 and loving it. One issue I’ve noticed is that I have the ABS indicator light on the speedo staying on when above 6mph. It should go off, but more often than not it stays on. I’ve reported the issue to the company that I bought the bike off but was just wondering if there’s any suggestions out there as to what I should/could check in the meantime?
Thanks
Sounds like the ABS system marginally is unable to calibrate?
I would check the wheel encoder ring for "roundness" and cleanliness. Also inspect the associated sensor for obstructions and cleanliness.
Failing that, intermittent behaviour many times is associated with loose wire connections with the circuit.
Ken,
First, a lot of the people who usually reply are at the rally. And I am at work away from my service manual.
What year and model CB do you have?
The ABS works off the inputs of the rear wheel pulser ring and sensor, and the front wheel ring and sensor. If your speedometer is working properly I would say the rear wheel ring and sensor are ok and you should take a look at the front.
Ensure the ring is not bent ANY and that the sensor and wiring are not damaged. If the ring is bent or damaged in any way you are going to have to replace it. So far no one has had any luck in trying to straighten a pulser ring. When I get home I can check the manual for the sensor gap spec and ABS troubleshooting.
You could also pull the tank and reseat the connectors on the ABS module.
GO posted while I was typing.
Agree with GO and LP above, most often a distorted or mis-aligned speed sensor disc. If the speedo is reading correctly, likely the front Usually gets bent when changing tires or re-installing wheels.
So what does it mean that the ABS indicator light stays on? Does it simply mean that the ABS system will not work, but bike is OK to ride and normal braking is not compromised? Or does it mean you will harm your bike if you continue to ride?
(09-01-2022, 09:33 PM)GoldOxide_imp Wrote: [ -> ]Sounds like the ABS system marginally is unable to calibrate?
I would check the wheel encoder ring for "roundness" and cleanliness. Also inspect the associated sensor for obstructions and cleanliness.
Failing that, intermittent behaviour many times is associated with loose wire connections with the circuit.
Thanks for the response. I’ve checked the rings for any issues and also for obstructions/dirt but nothing visible. It must be a wiring issue I reckon.
(09-01-2022, 09:41 PM)Lord Popgun_imp Wrote: [ -> ]Ken,
First, a lot of the people who usually reply are at the rally. And I am at work away from my service manual.
What year and model CB do you have?
The ABS works off the inputs of the rear wheel pulser ring and sensor, and the front wheel ring and sensor. If your speedometer is working properly I would say the rear wheel ring and sensor are ok and you should take a look at the front.
Ensure the ring is not bent ANY and that the sensor and wiring are not damaged. If the ring is bent or damaged in any way you are going to have to replace it. So far no one has had any luck in trying to straighten a pulser ring. When I get home I can check the manual for the sensor gap spec and ABS troubleshooting.
You could also pull the tank and reseat the connectors on the ABS module.
GO posted while I was typing.
Thanks for your message. Mine is a 2018 EX. I have checked the front and rear rings but all appears to be in order. I’ve been in touch with the company I bought it off and it should be covered under their 30 day warranty so I’m going to have it looked at by a local mechanic. Hopefully that will get it resolved.
(09-02-2022, 03:23 AM)pdedse_imp Wrote: [ -> ]So what does it mean that the ABS indicator light stays on? Does it simply mean that the ABS system will not work, but bike is OK to ride and normal braking is not compromised? Or does it mean you will harm your bike if you continue to ride?
Yes, basically the bike works in every way except for the ABS not working.
What i would suggest as a second check is to see if the abs system is functional or not.
Safest way is to select a flat grassy area and test if the front and/or back wheel systems work or not by checking the abs action when the brakes are independently operated.
That should point to;
a front wheel not pulsing
b rear wheel not pulsing
c abs unit not working correctly.
After the fault is localised it can be repaired, it may save time to find out what exactly is wrong before presenting it to the dealer.
Usually the abs system checks the front and rear wheel sensors for correct operation and the check light goes out as you know, was the abs working ok before?
Have the abs fuses ( there are two; 10A and 30A ) in the fusebox under the seat been checked?
Check the values and see if they are the correct ones and in the correct place in the fusebox.