ABS/brake pad sensor wire harness broken

[Haiyan]

Hi everyone 

 

I have some issue with my Carrera 996 2001. I am having the ABS and the brake pads lights on so I checked the connections and I have found that the front right hand connections are broken. However, when I opened the wires from the main wire and I found that there are five wires, but the abs and the brake pad sensor only having two each totalling 4 wires....could anyone help me with the wiring diagram because I want to solder the wires together.

 

Many thanks

[Loren]

Brown/Green and Borwn/Black got to the brake pad sensor.

 

Brown/Blue and Brown/White go to the speed sensor.

 

brown wire goes to ground (chassis) at the wheel carrier screw point.

[Haiyan]

Brown/Green and Borwn/Black got to the brake pad sensor.

 

Brown/Blue and Brown/White go to the speed sensor.

 

brown wire goes to ground (chassis) at the wheel carrier screw point.

 

Thanks Loren the brake pads warning light is off but still the ABS light is on. I did the BB with the black wire and the BW with the red wire, is it correct or should I do it the other way around ( BB and red, BW and black )? 

 

Many thanks

[Loren]

Polarity should not matter - but I guess you could try swapping them.

 

If that does not work then you might have a bad speed sensor.

 

Measure resistance between pin 1 and pin 2 on speed sensor.

Display should read: 1 k ohms to 3 k ohms

If not, then it needs to be replaced.

[Haiyan]

 

Polarity should not matter - but I guess you could try swapping them.

 

If that does not work then you might have a bad speed sensor.

 

Measure resistance between pin 1 and pin 2 on speed sensor.

Display should read: 1 k ohms to 3 k ohms

If not, then it needs to be replaced.

 

I have done the swap between the wires but the same result I get

 

Measured the resistance of the speed sensor and it shows just below 2K ohms ( Around 1.9 ) 

 

Could it be I have to drive the car so it could make adjustment or what might be the issue?

[Loren]

Yes, that certainly could be it. I do know when your replace the ABS electronics you have to drive the car to reset everything.

[Haiyan]

Problem solved Just drove it for less than 100m and the light is off. Thanks Loren.

[Richard Yang]

Congrats for your problem solved. But, I just would like to remind someone who has the same ABS light problem that you may check the brake fluid level first. Sometime, the brake fluid level too low will cause the ABS light on.