Silverado U0109

Tiny
HANDY69
  • MEMBER
  • 2008 CHEVROLET SILVERADO
  • 5.3L
  • V8
  • 4WD
  • AUTOMATIC
  • 190,000 MILES
Hi I really need some help on this one I'm working on a 08 silverado 5.3 vin#m would a bad pump trow this code reason I ask is cuss it's pump not turning on and 12v direct to pink and gray wire to pump not turning it on could I have bad pump? Many thanks in advance
Monday, January 25th, 2016 AT 10:13 PM

5 Replies

Tiny
WRENCHTECH
  • MECHANIC
  • 20,757 POSTS
Yes, it could

DTC U0109 00: Lost Communication With Fuel Pump Control Module
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Tuesday, January 26th, 2016 AT 2:14 AM
Tiny
HANDY69
  • MEMBER
  • 12 POSTS
Sounds like a plan I will replace it and give u update thank u
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Tuesday, January 26th, 2016 AT 1:27 PM
Tiny
WRENCHTECH
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I suggest you call the dealer first. There is a recall on that.

# 14515B: Product Safety - Chassis Electronic Control Module Internal Contamination - (Feb 2, 2015)

Subject: 14515B - Chassis Electronic Control Module Internal Contamination
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Tuesday, January 26th, 2016 AT 1:30 PM
Tiny
HANDY69
  • MEMBER
  • 12 POSTS
It was bad red white stripe wire that powers the module I would get 12v at module but I guess it was to week to power it was bad right by the frame under Cabinet thanks for all help not sure how it happened I attached some pics
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Thursday, January 28th, 2016 AT 7:45 PM
Tiny
WRENCHTECH
  • MECHANIC
  • 20,757 POSTS
Maybe chewed up by a rodent. Glad to hear you found it.
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Friday, January 29th, 2016 AT 2:00 AM

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