Code P0633

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Mgm_Harrison

Junior Member
Joined
Nov 6, 2023
Posts
14
Reaction score
8
Location
Texas
Ram Year
2006
Engine
5.9
Was randomly driving home one day and the engine hiccuped and threw a code, got home turned it off and on ran fine but still engine light was on, by the next day of driving it turned off.
Week later randomly after no problems it just died at idle, it would turn back on and run for 1 second then die again.
Had it sitting 3 days ran the code it was P0633, started it and ran fine no lights or nothing, but now the doors won’t lock with key or in truck switches on both sides.
What could be the problem it runs fine besides the locks now, but I don’t wanna be stranded randomly.
 

GTyankee

Senior Member
Supporting Member
Military
Joined
Nov 2, 2020
Posts
10,151
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12,801
Location
El Cajon Calif. 92021
Ram Year
2016
Engine
3.0 ecodiesel
What is the code P0633 on a Dodge Ram?

The diagnostic trouble code (DTC) P0633 stands for “Immobilizer Key not Programmed – ECM/PCM.” This code is set when the PCM detects an unknown transponder signal. Aug 29, 2023

A video on YouTube mentions a SKIM
Sentry Key Immobilizer Module (SKIM),
It lives in your steering column, and together with your PCM and your key, they do some complex math operations

It is very HIGH above my pay grade
 
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