Need a answer to p1689 code please

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04-18-2013, 07:03 PM

iceman1404

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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?

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04-21-2013, 01:00 AM

blacksally

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

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04-28-2013, 06:55 PM

Verk86z

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

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04-29-2013, 10:29 AM

0jkidd

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

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04-29-2013, 11:40 AM

Ltk

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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; 04-29-2013 at 11:40 AM. Reason: Automerged Doublepost

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04-30-2013, 10:10 AM

01CumminsPower

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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.

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