BRAKE dash light ABS dash light and a Beep...

[REZARF]

My 1999 100 with 352,xxx on the clock started giving me a quick ABS/BRAKE warning light and an audible continuous beep last week. Just at start up, lasted about 3-5 seconds then went away. Replaced a rear rotor and rear shoes about a month ago FWIW.

Yesterday, same but while driving, lasted for a few minutes... pretty annoying but more than that, concerning.

I have fully operating brakes. I have had no issues in performance.

I have read up on a few threads about replacing the ABS motor and Accumulator and maybe a MC rebuild.

Before I drag out the FSM, are there any other things to be looking for?

I parked the 100 and haven't driven it since but need to tackle it as it's my DD.

Thanks in advance.

 

[REZARF]

I appear to have some fluid weeping here...

Theres a black junction box with three main harness connections that has a metal tab and it’s wet but not dripping. Just weeping.

brake fluid level is in the middle range.

no codes on the scan gauge.

 

[robertbell5505]

My 1999 100 with 352,xxx on the clock started giving me a quick ABS/BRAKE warning light and an audible continuous beep last week. Just at start up, lasted about 3-5 seconds then went away. Replaced a rear rotor and rear shoes about a month ago FWIW.

Yesterday, same but while driving, lasted for a few minutes... pretty annoying but more than that, concerning.

I have fully operating brakes. I have had no issues in performance.

I have read up on a few threads about replacing the ABS motor and Accumulator and maybe a MC rebuild.

Before I drag out the FSM, are there any other things to be looking for?

I parked the 100 and haven't driven it since but need to tackle it as it's my DD.

Thanks in advance.

I have a similar issue with my 2001. It started with the ABS light and continuous beep for 15 to 30 seconds and then would go off. Now it is the lights with a continuous beep whenever the engine is running. The brake codes I have are C1223 ABS System Fault and C1251 Pump Motor Lock. The local Toyota dealership recommends replacing the entire assembly for around $4,300 plus tax. I'm looking for alternatives...

Have you heard about hitting the ABS motor with a hammer to get the continuous alarm off? I haven't tried it but it may be a temporary fix.

 

[REZARF]

I haven't tried it but it may be a temporary fix.

Sounds less than ideal.

I need to fix it, I also have to find the most economical solution.

 

[IndroCruise]

My 1999 100 with 352,xxx on the clock started giving me a quick ABS/BRAKE warning light and an audible continuous beep last week. Just at start up, lasted about 3-5 seconds then went away. Replaced a rear rotor and rear shoes about a month ago FWIW.

Yesterday, same but while driving, lasted for a few minutes... pretty annoying but more than that, concerning.

I have fully operating brakes. I have had no issues in performance.

I have read up on a few threads about replacing the ABS motor and Accumulator and maybe a MC rebuild.

Before I drag out the FSM, are there any other things to be looking for?

I parked the 100 and haven't driven it since but need to tackle it as it's my DD.

Thanks in advance.

Suggest start here with this article by @2001LC

Brakes ...... Overdue write-up.

First and foremost: Brakes should only be worked by those, with high level of mechanical abilities and experienced with brake systems. With the age of all 100 series today, in our aging fleet. Any issue, with brake master assembly. IMHO, best and safest course of action. Have the whole brake...

forum.ih8mud.com

 

[KFunk740]

You guys need to stop driving them, now. The brakes will stop working almost completely, soon. They don't just get weak, they get GONE. With a full leg force, they barely do anything.

You can find rebuilt units on ebay, or just message Andy Le on FB. I got a rebuilt unit for $550 from him (rebuilt M/C, rebuilt motor, tested accumulator), and its beemn working fine for over a year now.