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Old 03-12-2011, 05:51 AM   #1
DataByte
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Question C2116ľABS PUMP MOTOR SUPPLY LOW VOLTAGE.

Jeep just started throwing this code.
C2116ľABS PUMP MOTOR SUPPLY LOW VOLTAGE.

Any thoughts on how to fix this or how I go about tracking down the problem?
Anyone have any experience with this?

On a related note, anyone know how to get the wiring harness off the ABS pump without breaking it? Thought I would start with checking that connection as it may have some mud or dirt in there.
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Old 03-12-2011, 09:38 PM   #2
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Well, I haven't seen this one before. But a Google search found this:

"Essentially these codes mean there is insufficient voltage getting to the abs module. The most likely cause of this would be a blown fuse in the underhood fuse box. Fuse # XXXXX is a 50 amp fuse and supplies the voltage for the abs module.

At the module the power wire is tan/red in color and you can test it for voltage directly at the module if needed."

Hope that helps a little. It would be great if it was just a fuse!
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Old 03-12-2011, 09:42 PM   #3
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More info... from the service manual:

This is a link that has a 'how to' diagnose this problem.
http://koehlercafe.com/subdomains/je...l/7c033333.xml
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Old 03-13-2011, 01:00 AM   #4
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I had that same problem and had to have the whole abs control module replaced.

Mine was caused by my house being hit by lightning and having the jeep parked against the metal garage door.

I'm guessing something else is causing your issues.
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Old 03-13-2011, 06:44 AM   #5
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Quote:
Originally Posted by TEXASKEV View Post
Well, I haven't seen this one before. But a Google search found this:

"Essentially these codes mean there is insufficient voltage getting to the abs module. The most likely cause of this would be a blown fuse in the underhood fuse box. Fuse # XXXXX is a 50 amp fuse and supplies the voltage for the abs module.

At the module the power wire is tan/red in color and you can test it for voltage directly at the module if needed."

Hope that helps a little. It would be great if it was just a fuse!
I swear to you I tried a Google search.. I always do.. I don't know how yours turned up this!! Apparently your searching skills are way better than mine.
Thank you for finding this for me.

Quote:
Originally Posted by TEXASKEV View Post
More info... from the service manual:

This is a link that has a 'how to' diagnose this problem.
http://koehlercafe.com/subdomains/je...l/7c033333.xml
Service manual??? There is a service manual online???
Why have I never heard of this before????


Quote:
Originally Posted by guinness View Post
I had that same problem and had to have the whole abs control module replaced.

Mine was caused by my house being hit by lightning and having the jeep parked against the metal garage door.

I'm guessing something else is causing your issues.
Wow.... At least your problem has a great story to go with it!
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Old 03-13-2011, 06:50 AM   #6
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Originally Posted by DataByte View Post
Wow.... At least your problem has a great story to go with it!
Yep A real good story, and a lot of other blown up electronics to go with it.
Thankfully insurance covered it or you would have seen the funniest JK for sale add ever.
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Old 07-14-2012, 08:01 AM   #7
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I am having the same problem with my 2009 Compass. The problem is intermittent, but the lights are on about 90% of the time. Same error that is mentioned here - ABS PUMP MOTOR SUPPLY LOW VOLTAGE.

The dealership wants to change the ABS module, and the pump since they'll be in there anyway, for almost $1,000.

Could this be something more simple?

My Compass is three years old this month, with only 42,000 miles on it.

I already had the battery, starter and alternator checked out... all good.

Edit: The worst part about this problem is that the car doesn't up-shift properly, so it drives horrible and dumps gas like crazy. :-\

Thanks,
Tom

Last edited by tomwilsonfl; 07-14-2012 at 08:03 AM.
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Old 07-15-2012, 08:42 AM   #8
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If there is a way around it, I don't know what it is. They changed my module and pump for about the same price.

Now my Sebring is doing the same thing... grrrrr
Quote:
Originally Posted by tomwilsonfl View Post
I am having the same problem with my 2009 Compass. The problem is intermittent, but the lights are on about 90% of the time. Same error that is mentioned here - ABS PUMP MOTOR SUPPLY LOW VOLTAGE.

The dealership wants to change the ABS module, and the pump since they'll be in there anyway, for almost $1,000.

Could this be something more simple?

My Compass is three years old this month, with only 42,000 miles on it.

I already had the battery, starter and alternator checked out... all good.

Edit: The worst part about this problem is that the car doesn't up-shift properly, so it drives horrible and dumps gas like crazy. :-\

Thanks,
Tom
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Old 07-15-2012, 06:13 PM   #9
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Quote:
Originally Posted by tomwilsonfl View Post
I am having the same problem with my 2009 Compass. The problem is intermittent, but the lights are on about 90% of the time. Same error that is mentioned here - ABS PUMP MOTOR SUPPLY LOW VOLTAGE.

The dealership wants to change the ABS module, and the pump since they'll be in there anyway, for almost $1,000.

Could this be something more simple?

My Compass is three years old this month, with only 42,000 miles on it.

I already had the battery, starter and alternator checked out... all good.

Edit: The worst part about this problem is that the car doesn't up-shift properly, so it drives horrible and dumps gas like crazy. :-\

Thanks,
Tom
No, this is common, the reason is, not even chrysler has a decent pinpoint test for us Techs to follow... its dumb, but i swear, once all the wiring has been checked, the pinpoint test says replace ABS module and if the code returns, replace HCU.
Really?? yup... its called an guess.... so to combat that, Techs will sell both units. I have replaced two ABS modules, only to have the car come back days or weeks later with the pump failed...
I know it sounds bad, but to cover their ass, a Tech sells both. In that case, we (customers and Techs) have to blame the dumb ass engineers who cant give us a better pinpoint test
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