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Tom/Barb

Oak Harbor, Wa

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Posted: 10/24/20 09:26pm Link  |  Quote  |  Print  |  Notify Moderator

This is a cummins 8.3 350 the road relay 4 is showing this message

" SID 237 active 3
engine controller
subsystem ID # 237
unidentifiable. Fail Mode"

what does this mean?

engine starts and runs find.


2000 Newmar mountain aire 4081 DP, ISC/350 Allison 6 speed, Wrangler JL toad.

WAFlowers

Clearwater, FL

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Posted: 10/25/20 08:31am Link  |  Quote  |  Print  |  Notify Moderator

I believe this means that the air intake heater grid is not fully coming up to temperature. It is used when starting the engine when it it cold. However you need to verify what I said. The best thing would be to call Cummins.


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George, Sammy and Teddy (the dogpack)
2008 Tiffin Phaeton 40QSH
2005 Keystone Monata 3400rl (5/21/11 to 9/9/17)
(Was in a 2000 Coachmen Catalina Sport 220RK)


Tom/Barb

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Posted: 10/26/20 08:45pm Link  |  Quote  |  Print  |  Notify Moderator

As come we find cummins doesn't know that SID 237 means either.. but we still have the light. [emoticon]

Ray,IN

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Posted: 10/27/20 09:48pm Link  |  Quote  |  Print  |  Notify Moderator

Perhaps this website will be helpful.
Strike that; no 237 code listed. Sorry.


And so, my fellow Americans: ask not what your country can do for you — ask what you can do for your country.John F. Kennedy 20Jan1961

Tom/Barb

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Posted: 10/28/20 12:09pm Link  |  Quote  |  Print  |  Notify Moderator

Cummins insite diagnostic computer --says the intake manifold heater is not heating..

results later. //

Tom/Barb

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Posted: 10/28/20 01:46pm Link  |  Quote  |  Print  |  Notify Moderator

Fixed it

faulty terminal on the manifold heater circuits
there are two fuses protecting the heater relays and the two heaters, one had a bad connection

WAFlowers

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Posted: 10/28/20 06:11pm Link  |  Quote  |  Print  |  Notify Moderator

So the problem was what I said. Glad you got it fixed.

Tom/Barb

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Posted: 10/28/20 08:01pm Link  |  Quote  |  Print  |  Notify Moderator

WAFlowers wrote:

So the problem was what I said. Glad you got it fixed.


[emoticon] [emoticon]
the fault code was what threw us.

Cummins . com
didn't know what it was..

it takes a cummins insite computer to give the proper read out.

the little garages don't have them, I canvased 4 cummins dealer before we found one.

Ray,IN

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Posted: 10/28/20 11:37pm Link  |  Quote  |  Print  |  Notify Moderator

Thank you for explaining the solution!
Cummins could not connect with or read my ECM last July until they uploaded new software to the ECM.

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