Codes C0201 and C0110?

2004 CHEVROLET EXPRESS
200,000 MILES • 6.0L • V8 • 2WD • AUTOMATIC
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RAUSCS
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ABS light on, no others. Had C0201 on-and off, maybe 10% of the time for 6 months or so. Had ABS module repaired and problem persisted. Soldered a new substantial ground wire to the harness and grounded to frame. No difference. Started getting a C0110 code a couple months back, the ABS light is on most of the time. Van is a camper conversion, and I don't drive it unless we're on a road trip. JH6 brake configuration, VIN# 1GCHG39U341121868. Wiring harnesses appear to be in good shape. Thanks! Steve

Chevy Express 3500.
Jul 23, 2025 at 3:24 PM
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RAUSCS
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To clarify, I am now getting both codes.
Jul 23, 2025 at 6:28 PM
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STRAILER
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If the wiring is good, you need a new ABS unit, including the module and valve/motor.

C0201 - ABS Pump Motor Circuit Malfunction
C0110 - Pump Motor Circuit

Here is the part you need to replace. Check out the images (below). Please let us know what happens.
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Jul 24, 2025 at 9:15 AM
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RAUSCS
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if I remove the whole unit and replace the module with my rebuilt one, will I need to do the factory bleed? RPO says the system is JH6, what pumps can I replace it with? I've seen folks replace the unit with different parts.
Jul 24, 2025 at 9:45 AM
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STRAILER
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Yes, you will need to open the ABS control valves while bleeding, here is a video to show you how:

https://www.youtube.com/watch?v=nQRnKyVyMuQ

I would stick to the ABS part numbers that match or are compatible. Please go over this guide and get back to us.
Jul 24, 2025 at 9:50 AM
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RAUSCS
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Great, thanks. I'll update this once I've done the work, probably be a while.
Jul 24, 2025 at 10:07 AM
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RAUSCS
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What part nuimbers should I be looking for?
Jul 24, 2025 at 11:30 AM
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STRAILER
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No worries, here are the part numbers that should work,

15235056

19417943

19417944 (updates and replaces others such as 15235056, 15102087, 25747637)

Have a good weekend!
Jul 25, 2025 at 9:33 AM
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RAUSCS
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Thanks, I've ordered a pump on Ebay and will follow up later.
Jul 25, 2025 at 10:06 AM
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STRAILER
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Sounds good have a nice weekend!
Jul 25, 2025 at 12:52 PM