ABS problem

[CB7lx91]

Hey guys, I just test drove a 1993 EX sedan today, and I had a bit of a brake problem. BTW it's standard.

When I would start accelerating - just regular accelerating, not burning rubber or nothing - it felt fine, but I heard a scratching type sound coming from under the passenger dashboard/glove box area. It was faint in a way, by no means was it loud, and it only occurred when accelerating. When I would get to a constant speed - say 25 mph - the sound would dissipate. It only came from under the passenger side dashboard/glove box area.

Also, I have a feeling this ties into the noise, when I would come to a casual stop - again, not stomping on the brakes, just easing to a stop - the pedal would pulse until I was completely stopped, and the abs light eventually came on. I didn't know if an abs light could be treated as a cel, and if I crossed that plug under the dash I would get a code or not, so I didn't.

Any idea as to what may be the problem? I heard that it could just be the abs system cycling pretty loud...but I have no idea. When I came to a casual stop and the pedal pulsed, the wheels weren't locking up, they were just slowing down. The guys that own the car said they had never felt that before (yeah right), so they had no advice for me.

TIA,
Andy


Also...kind of off topic, but i put new brakes on my 91 lx, and was wondering if the entire front control arm could be swapped into the 93 ex, so I could skip having to press out the rotors again. Just wondering if the abs sensor would get in the way.

[ExplodingCake]

ABS Motor..

You can pull the codes too.

[CB7lx91]

alright, so next time the light comes on I'll cross that terminal. So as in the motor you are referring to the modulator? That runs for like a grand...

[ExplodingCake]

Not really sure that's the culprit. Get the code and go from there.


1 - ABS pump motor over-run
1 2 ABS pump motor
1 3 high pressure leakage
1 4 pressure switch
1 8 high pressure system
2 1 parking brake
3 1 pulser RF
3 2 pulser LF
3 4 pulser RR
3 8 pulser LR
3 12 different diameter tires
4 1 wheel sensor RF
4 2 wheel sensor LF
4 4 wheel sensor RR
4 8 wheel sensor LR
5 - rear wheel lock - R/L
5 4 rear wheel lock - R
5 8 rear wheel lock - L
6 - fail-safe relay - F/R
6 1 fail-safe relay - F
6 4 fail-safe relay - R
7 1 solenoid - RF
7 2 solenoid - LF
7 4 solenoid - R
8 1 ABS function
8 2 CPU comparison
8 4 IC self-check

[CB7lx91]

perfect. Thanks dude, also, think my front control arm assembly could be swapped into the 93 ex?

[CB7lx91]

bump

[aaahhhleft]

yeah i got the same thing happen to me about a month ago, i just disconnected the battery and waited for a few minutes, the lights went away

[CB7lx91]

did the problem go away though?

[ExplodingCake]

perfect. Thanks dude, also, think my front control arm assembly could be swapped into the 93 ex?

yes

[CB7lx91]

Alright, so I'm getting the car tomorrow. The guy who is selling it took it to a mechanic, and the mechanic said that it may need a new passenger side abs sensor, but the abs system is fine, and it didn't act up for him. So the seller is refusing to fix the "non existent" problem.

So when I purchase it, once the abs light comes on, I'll pull over and whip out the paper clip and get the code. If it does just need a new sensor, Napa sells them for $150...not gunna happen haha. So I figured I'd just go to the local junkyard, and pick a couple front passenger side sensors off of some cb's, and replace mine with one of them - just in case some are busted. My question is this:

Since my current car doesn't have abs, I can't get under it and check it out, but from what I've seen on other makes and models, the abs sensor is just bolted on to the "frame" of the suspension, over the steering knuckle, and has a wire coming from it, to a connector. Is this how it is on our cb's? If so, I can just disconnect it, and swap in different sensors, clear the code, and hope the problem goes away right?

[Mjfan12]

my abs is messed, i dont care since abs is pretty useless. I honestly have only locked my brakes a couple of times in the 3 cars I have owned.

I just pulled the abs relay so it would stop pulsating all the time. The light is alwas on but I'll probably pull that bulb from the guage cluster.

fixing the system is like a grand, thats how much these cars are worth! LOL so no way am I wasting that much money on this hooptie.

[CB7lx91]

got the car. pulled the code.

can't figure out what code it is though. It blinks 4 times...then pauses...then blinks 8 times. it just keeps repeating that.

[CB7lx91]

bump?

[ExplodingCake]

Wheel Sensor Left Rear

[CB7lx91]

wow I'm an idiot. Alright thanks for reminding me how blind I can be.