2016 wheel speed sensor resistance
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Tuned
Joined: Sep 2005
Posts: 331
Likes: 1
From: Charlton, NY
2016 wheel speed sensor resistance
I have one trouble code U0415 code. There are no other codes so I don't know what is causing the problem. What should the resistance values be for the wheel sensors? I disconnected each sensor to measure the resistance, The front sensors read 490Kohms and 480Kohms. The rear left read 7,800Kohms while the right read 4,800Kohms. I am surprised to see the values so high and that the rear values differ.
Lead Driver
Joined: Sep 2006
Posts: 7,907
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Your specific code does not ID a specific Sensor. **
U 0415 says Invalid data received >between< Modules over the central area bus. Can Bus.
Address any other Codes first as a possible cause, then go for related hardware and Harness issue and/or plug-up.
Sensor codes are usually C codes not U codes.
Your code is a U code. **
The Resistance between sides is not very critical even if they are not close in value. It's the signal they send that is of value.
I don't have the R value for your vehicle.
Good luck.
U 0415 says Invalid data received >between< Modules over the central area bus. Can Bus.
Address any other Codes first as a possible cause, then go for related hardware and Harness issue and/or plug-up.
Sensor codes are usually C codes not U codes.
Your code is a U code. **
The Resistance between sides is not very critical even if they are not close in value. It's the signal they send that is of value.
I don't have the R value for your vehicle.
Good luck.
Lead Driver
Joined: May 2015
Posts: 5,891
Likes: 360
From: Mts. S. of San Francisco
Your specific code does not ID a specific Sensor. **
U 0415 says Invalid data received >between< Modules over the central area bus. Can Bus.
Address any other Codes first as a possible cause, then go for related hardware and Harness issue and/or plug-up.
Sensor codes are usually C codes not U codes.
Your code is a U code. **
The Resistance between sides is not very critical even if they are not close in value. It's the signal they send that is of value.
I don't have the R value for your vehicle.
Good luck.
U 0415 says Invalid data received >between< Modules over the central area bus. Can Bus.
Address any other Codes first as a possible cause, then go for related hardware and Harness issue and/or plug-up.
Sensor codes are usually C codes not U codes.
Your code is a U code. **
The Resistance between sides is not very critical even if they are not close in value. It's the signal they send that is of value.
I don't have the R value for your vehicle.
Good luck.
The signal is probably a pulsed signal relative to the wheel speed, and not an analog value.
Lead Driver
Joined: Sep 2006
Posts: 7,907
Likes: 143
Another tid-bit.
This part of the system can't diagnose itself standing still with no signal generated by wheel >not in motion.
If the signal is present and not intermittent, when in motion, that branch is good. Harness and Sensor has to be good. Usually requires at least 5 mph moving speed.
Therefore, the specific R value has little importance.
Good luck.
This part of the system can't diagnose itself standing still with no signal generated by wheel >not in motion.
If the signal is present and not intermittent, when in motion, that branch is good. Harness and Sensor has to be good. Usually requires at least 5 mph moving speed.
Therefore, the specific R value has little importance.
Good luck.
Thread Starter
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Tuned
Joined: Sep 2005
Posts: 331
Likes: 1
From: Charlton, NY
I think I found the problem; bad front right hub/sensor. My original code reader only found U0415 but FORScan also found C0034:38. I recorded the 4 sensors while rolling down the street and saw much noise in the front right. I removed the caliper and retracted the locking hub with vacuum and could tell the bearing is failing. I ordered two front hubs.
The truck has aggressive tires which makes so much noise I couldn't hear the bearing failure.
I'll post back after installation of the new hubs.
Thanks
The truck has aggressive tires which makes so much noise I couldn't hear the bearing failure.
I'll post back after installation of the new hubs.
Thanks
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Moderator
Joined: May 2005
Posts: 8,237
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From: San Antonio, TX
I think I found the problem; bad front right hub/sensor. My original code reader only found U0415 but FORScan also found C0034:38. I recorded the 4 sensors while rolling down the street and saw much noise in the front right. I removed the caliper and retracted the locking hub with vacuum and could tell the bearing is failing. I ordered two front hubs.
The truck has aggressive tires which makes so much noise I couldn't hear the bearing failure.
I'll post back after installation of the new hubs.
Thanks
The truck has aggressive tires which makes so much noise I couldn't hear the bearing failure.
I'll post back after installation of the new hubs.
Thanks
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Lead Driver
Joined: May 2015
Posts: 5,891
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From: Mts. S. of San Francisco
Could also be the CV joint?
Moderator
Joined: May 2005
Posts: 8,237
Likes: 1,248
From: San Antonio, TX
Perhaps, but the boots are in good shape and there is no issues with 4x4.
This truck has had 35” tires on it for 8 years. The only issue I had under warranty was to have the vacuum check valve replaced when the left IWE was grinding. Probably happened a dozen tomes before I finally took it in. That was at around 52k miles. It has 69k miles now. So I suspect the bearings are dying prematurely from heat and debris due to the grinding gears.
This truck has had 35” tires on it for 8 years. The only issue I had under warranty was to have the vacuum check valve replaced when the left IWE was grinding. Probably happened a dozen tomes before I finally took it in. That was at around 52k miles. It has 69k miles now. So I suspect the bearings are dying prematurely from heat and debris due to the grinding gears.
Thread Starter
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Tuned
Joined: Sep 2005
Posts: 331
Likes: 1
From: Charlton, NY
I installed the new hubs (with sensors), cleared the codes, and all is good. Replacing the hub is very easy
.
Great video except: to remove the dust cover just grab it will pliers and wiggle it out. Use thread locker on the axle nut, brake bracket bolts, and slide pin bolts.
I really like the bolts that Ford uses; the threads stop short of the end, so the threads are not exposed.
Great video except: to remove the dust cover just grab it will pliers and wiggle it out. Use thread locker on the axle nut, brake bracket bolts, and slide pin bolts.
I really like the bolts that Ford uses; the threads stop short of the end, so the threads are not exposed.
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