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2010 JEEP PATRIOT CODE: C2116 ABS PUMP MOTOR SUPPLY LOW VOLTAGE

  • MOROSO321
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11 Jun 2019 12:22 #30589 by MOROSO321
Friend of mine came to me for help with this issue. I tried getting a wiring diagram for this vehicle on bbbind.com, and it didn't yield no results. can anyone help me get a wiring diagram for this vehicle before i start disconnecting module connectors?

Also, i erased the abs codes and informed my friend to let me know when the code reappears. thanks fellow techs.

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11 Jun 2019 15:01 #30594 by jreardon
The following user(s) said Thank You: MOROSO321

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11 Jun 2019 18:38 #30606 by MOROSO321
The wiring diagram is not that clear. Is it possible that you can give me one that’s clearer?
Thanks JReardon

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11 Jun 2019 18:43 #30607 by jreardon

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12 Jun 2019 14:12 #30626 by MOROSO321
Sorry I don’t know what that means

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12 Jun 2019 15:30 #30628 by jreardon
PM = Private Messages.

Sorry, I should stop using that function as it doesn't seem to alert users to new messages.

www31.zippyshare.com/v/LyusfBYi/file.html

www31.zippyshare.com/v/qwO5Og0P/file.html

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13 Jun 2019 06:18 #30641 by MOROSO321
Thank you so much that was a better copy thanks again.

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13 Jun 2019 13:39 #30644 by MOROSO321
hey jreardon, for the life of me, I can't download the file you sent me on zippy share. I cannot extract the file and download it. Can you help? This is killing me.

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13 Jun 2019 13:42 #30645 by MOROSO321
sorry, buddy I figured it out. thanks again.

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14 Jun 2019 15:19 #30677 by Tyler
Thanks for the flow chart, jreardon. B)

FWIW, I've been here on this platform and other Chrysler products - always ended with an ABS module. :lol: I've been burned by replacing just the electronic portion, and not the hydraulics (with the motor in it). If the main power and ground can illuminate a headlight, then you're done.

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14 Jun 2019 17:28 #30679 by MOROSO321
Yes Tyler this flow chart is only directing me to check power and grounds. If that’s good, replace the module. And the test is only with a test light. If you have any other direction I open to it.

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14 Jun 2019 17:32 #30680 by MOROSO321
So you’re saying that I should replace the pump motor together with the module? I heard that’s a nightmare to bleed those system.

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15 Jun 2019 10:55 #30689 by Tyler

MOROSO321 wrote: So you’re saying that I should replace the pump motor together with the module?


Absolutely. IMO, this trouble code cannot distinguish between a module problem or a motor problem. The motor isn't available separately, and is part of what CDJ calls the Hydraulic Control Unit.

Have a look at Step #7 in the flow chart for this code, which is where you end up if module power and ground are good. Replace the ABS Module. Did that fix it? No? Replace the Hydraulic Control Unit. That's not a fun conversation to have with your boss/customer. :angry:

Good news is that bleeding is actually the easy part. :lol: It's the setup procedure that can be tricky. Be patient and follow every step carefully. Might take a few attempts. ;)

And the test is only with a test light. If you have any other direction I open to it.


Yeah I don't care for that, either. :silly: I'd hit both with a headlamp just to be sure.

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15 Jun 2019 14:33 #30694 by MOROSO321
So with the headlight example you’re giving me, just take 2 jumper wires, and hook them up power and ground. If that lights up the headlight I’m done, replace the entire unit?

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16 Jun 2019 13:44 #30717 by MOROSO321
Tyler what do you mean about the setup procedure? What does that entail? I thought this was a straight up replacement after testing.

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16 Jun 2019 14:55 #30718 by MOROSO321
By the way, I don’t own a bi-directional scanner.

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17 Jun 2019 05:02 #30725 by jreardon

MOROSO321 wrote: So with the headlight example you’re giving me, just take 2 jumper wires, and hook them up power and ground. If that lights up the headlight I’m done, replace the entire unit?


It should glow as bright as if it were hooked straight to battery. Those two Fused B(+) terminals have 40A and 30A fuses so that module and or motor together uses quite a bit of juice when they come alive.

Seems like step 5. in bleeding procedure requires bidirectional scanner to energize the solenoids inside the HCU to open and fill up all the passages.

File Attachment:

File Name: absbleeding.pdf
File Size:65 KB


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