ABS repair
03-30-2020, 10:07 PM
#3
Moderator
Join Date: 01-23-2009
Location: Fredericksburg,VA
Posts: 24,747
Wouldn't an understanding of how the sensors work help more than a wiring diagram? They generate an AC signal, the computer uses the frequency to calculate the wheel speed. The wiring diagram shows 2 wires from each wheel going to the EBCM.
03-31-2020, 05:24 PM
#6
Banned
Join Date: 02-08-2011
Location: cali
Posts: 610
did u buy it used ? maybe salvage auction ? i only ask cuz they move them with fork lifts and almost every one i bought had cut or pinched wires on the rear axle some times hard to see as there in that plastic wrap , worth a look ?? gl ,,, dave
04-01-2020, 08:54 AM
#9
Senior Member
Join Date: 06-07-2011
Location: SE Mich
Posts: 2,180
Yeah, read the codes.
Determine the correct corner.
Then check resistance of the sensor.
That is the best way to check the sensor, although I would suggest moving the wires a bit, with the meter on, to help detect small breaks. You want very low resistance. (0.3 to 0.5 ohms is the typical upper limit).
If the wiring got pinched at any point, you could have a break.
If all of the above are OK, that means you have either something wrong with the tone wheel on the bearing (excessive debris) OR you have a wiring issue.
Determine the correct corner.
Then check resistance of the sensor.
That is the best way to check the sensor, although I would suggest moving the wires a bit, with the meter on, to help detect small breaks. You want very low resistance. (0.3 to 0.5 ohms is the typical upper limit).
If the wiring got pinched at any point, you could have a break.
If all of the above are OK, that means you have either something wrong with the tone wheel on the bearing (excessive debris) OR you have a wiring issue.