Need a answer to p1689 code please

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Apr 18, 2013 | 07:03 PM

iceman1404

Thread Starter

Diesel Fan

Joined: Nov 2010

Posts: 54

Likes: 0

From: Vermont

Need a answer to p1689 code please

If my truck threw a p1689 and I cleared it should it come back again as I try to start the truck? if it does not come back does that mean ecm and vp are ok?

Apr 21, 2013 | 01:00 AM

blacksally

Diesel Enthusiast

Joined: Aug 2012

Posts: 360

Likes: 7

From: butte mt

i have that code all the time it comes with my programmer

Apr 28, 2013 | 06:55 PM

Verk86z

Newbie

Joined: Apr 2013

Posts: 1

Likes: 0

Could be a bad connection too. Worthwhile to check your grounds for looseness, corrosion, etc...

Apr 29, 2013 | 10:29 AM

0jkidd

Diesel Bombers Sponsor

Joined: Jan 2008

Posts: 1,100

Likes: 77

From: Kaysville UT

Check the fuel system relay. swap it with another in the fuse box.

Apr 29, 2013 | 11:40 AM

Ltk

Diesel Bomber

Joined: Sep 2011

Posts: 1,203

Likes: 86

From: Pikeville, KY

i also have that code at all times ever since i bought and installed my smarty programmer on my 2001

---AutoMerged DoublePost---

P1689 - No communication between ECM & Injection Pump Module

Last edited by Ltk; Apr 29, 2013 at 11:40 AM. Reason: Automerged Doublepost

Apr 30, 2013 | 10:10 AM

01CumminsPower

Diesel Fan

Joined: Mar 2011

Posts: 31

Likes: 0

From: Bellefonte Pa

could it mean the vp44 is going out? because mine thru that code and my truck died on the road. i have lost all power and fuel milage even tho the code went away. ive checked all wires and there fine.