ABS sensor

[mastercamper]

Replaced the sensor on my 03 due to an erratic signal, the plug just fell apart under the hood. Put new one in and it didn't have a plug so i just cut the plug off and wired it up. Cleared the codes and drive it about 200 yards and it chimes and 3 amigos pop up. Read the codes and I get output too low.

Any ideas?

 

[StangGT5]

I've never spliced ABS sensor wiring, but I know they sell sensors where you have to do that. Your connections could still be at issue though.

I had the same issue arise after replacing a rear wheel bearing on my D2. Turned out that it did not like the aftermarket sensor that came in the wheel bearing. I swapped in the stock 160K mile sensor and have been fine for three years.

All that is to say, check your connections (I prefer weatherproof butt connectors over solder) and consider that European cars rarely get along with aftermarket sensors.

 

[mastercamper]

I've never spliced ABS sensor wiring, but I know they sell sensors where you have to do that. Your connections could still be at issue though.

I had the same issue arise after replacing a rear wheel bearing on my D2. Turned out that it did not like the aftermarket sensor that came in the wheel bearing. I swapped in the stock 160K mile sensor and have been fine for three years.

All that is to say, check your connections (I prefer weatherproof butt connectors over solder) and consider that European cars rarely get along with aftermarket sensors.

I’m thinking I’ve gotten a bad one. I’ve reversed the wiring, pulled the sensor, replaced o ring. Now when I clear the code the ABS light stays on and when I hit 20 the other 2 come on.
This one came from rock auto. All the ones I saw didn’t have plugs. It’s long enough to run to the back of the module under the dash.
I’ll get one from Atlantic British and see what that does.

 

[mlnnc]

Replaced the sensor on my 03 due to an erratic signal, the plug just fell apart under the hood. Put new one in and it didn't have a plug so i just cut the plug off and wired it up. Cleared the codes and drive it about 200 yards and it chimes and 3 amigos pop up. Read the codes and I get output too low.

Any ideas?

If I were you I would next try splicing in the original sensor.

My truck had a right rear sensor fault a few years ago. I bought a replacement sensor, and like you, cleared the code but the Boys from South of the Border returned. I removed the new sensor and saw that there was evidence the reluctor ring had been rubbing against it.

The ABS system is very sensitive to the gap between the sensor and the reluctor ring being within tolerances. It's also well known that wheel speed sensor faults often result from problems with the connectors between the sensor and the wiring harness leading back to the SLABS.

I reinstalled the original sensor and cut out the connector, replacing it with a different weather-resistant connector. I believe I could have simply spliced the wires and achieved the same result, but five years later all is well.

Try reinstalling the original sensor eliminating the connectors, and let us know how that turns out.

 

[JUKE179r]

Another check you can do is measure the resistance of the sensor with a multimeter across the 2 pins coming from the hub. It should be 950-1100 ohms. Anything above or below indicates the faulty sensor.