Stalls out when driving, code P1685

GATELAE1

MEMBER
2008 DODGE RAM
5.7L
V8
TURBO
4WD
AUTOMATIC
122,000 MILES

Stalls out then it restart, but then stalls again shortly after. Throws a code P1685. If you disconnect the negative terminal it will reset code and car will be okay for a week or so. Then it will start stalling again. Tried using both key fobs, that’s not the problem. Is the problem the immobilizer?

Sunday, February 24th, 2019 AT 6:07 AM

6 Replies

GATELAE1

MEMBER
4 POSTS

Made mistake it doesn’t have a turbo.

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Sunday, February 24th, 2019 AT 6:24 AM

ASEMASTER6371

MECHANIC
52,796 POSTS

Good morning,

Can you verify the code? I see nothing for a P1685 for a 2000 ram with a 5.7.

No to the immobilizer. If it was bad, it would not allow it to start. Once it starts, it will or should stay running.

Roy

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Sunday, February 24th, 2019 AT 7:13 AM

GATELAE1

MEMBER
4 POSTS

You got the year wrong it’s a 2008.

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Sunday, February 24th, 2019 AT 7:36 AM

ASEMASTER6371

MECHANIC
52,796 POSTS

Sorry, senior moment.

Looked at 2008 for the same and nothing for P1685.

Can you verify the number? I tried it In P, C, B and U and nothing shows for 1685.

Roy

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Sunday, February 24th, 2019 AT 7:52 AM

GATELAE1

MEMBER
4 POSTS

Roy, I thought that’s was the code number, I had a senior moment also. It said” SKIM Key Invalid”. Or should I wait until it codes again when it stalls out, and then get back to you?

Thanks, Larry

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Sunday, February 24th, 2019 AT 8:18 AM

ASEMASTER6371