2nd Gen Non-Engine/Transmission Rear ABS Sensor

[scotmartin]

Can someone tell me the proper Ohm value for my rear ABS sensor. (the one in the differential) I have rear wheel ABS only.

The truck is a 99 4x4 5speed.



Scot

 

[GAmes]

The new one that I just happen to have on my work bench has about 1500 ohms across the two pins. It is for a 97 3500, but is probably the same.

 

[mstimac]

I just changed mine yesterday. The old one read . 5 meg(no work) and the new one was 1. 7K. Everything now works fine.

 

[Berrigan]

Mine was for a 98 3500. Old one was open, new one was 1830 ohms out of the box.

 

[Blakers]

The new one I just bought (unnecessarily) for my '95 measured 1320 ohms.

 

[scotmartin]

I finally got around to finding the spec in my CD-rom manual. It states the the rear wheel sensor should have between 1600 and 2300 Ohms. I crawled under the back and found 1400 ohms. I guess I need to find a new sensor.

Scot

 

[Blakers]

Be sure to check out the wiring harness leading toe the sensor first. Look for corrosion and loose pins in the connectors. There's a connector at the sensor and one up along the frame just behind the fuel tank. This is the usual cause and only $27 for the short pigtail compared to $67 for the sensor.

 

[scotmartin]

I will look at the harness connection. But, my speedometer is still working fine. The 98. 5 and newer use this sensor for the spedo and rear abs. So I must be getting some signal from the sensor or my spedo would be off. I will keep trying. I tried to scan the abs computer, but the Snap_on scan tool does not communicate with the Kelsey-Hayes rear ABS module. This is what I was told by the Snap-On tech line. So I will have to try and diagnose, without codes.



Scot

 

[GAmes]

It's a 5 minute job to change it. Anyone you know have a Ram and will let you borrow their sensor for a few miles?

 

[R-N-R]

My ABS and Brake dash lights have been on for a couple of months now.



I metered the rear wheel sensor at 1. 7k Ohms today.



Any suggestions on what to check next?

 

[R-N-R]

Can someone tell me the proper Ohm value for the front ABS sensors?