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Old 12-30-2017, 11:38 AM   #1
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Engine light shut me down. Where to plug in diagnostics on a 2010 Thor Serrano 31Z

I'm basically stuck in the middle of nowhere but there's a diesel mechanic here at the Exxon in Van Horn, TX....he couldn't find where to plug in his diagnostics computer....anyone here know?
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Old 12-30-2017, 11:44 AM   #2
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I heard somewhere on cars they have to be within approx. 18" of steering column, I would think it might be same on RV's. My Monaco is under dash by column.
2002 Monaco Executive 500 ISM
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Old 12-30-2017, 12:00 PM   #3
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Hi ! Welcome to IRV2! We're sure glad you joined the gang!

Can't answer that question! Hope your problem turns out to be something simple. Keep her between the ditches!

Good luck, happy trails, and God bless!
Joe & Annette
Sometimes I sits and thinks, sometimes I just sits.....
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Old 12-30-2017, 07:00 PM   #4
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Typically they're under the dash, and on my Freightliner chassis it's down andto the left of the steering column under the dash.

I believe you may have a workhorse chassis, so not sure that's similar.
DaveB, Raleigh, NC
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Old 12-31-2017, 12:43 AM   #5
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If you have a DEF (Diesel Exhaust Fluid) system that maybe what shut you down. Is the DEF tank empty?
1999 35 ft. Dolphin 5350, F53, Banks System, 5 Stars Tune, Air Lift Air Bags, Koni Shocks, Blue OX TruCenter, TigerTrak track bars F&R, Roadmaster 1-3/4" rear auxiliary sway bar, 2004 F450 Lariat Pickup 6.0 Diesel Crew Cab DRW, 4X4, GVWR 15,000, Front GAWR 6,000, Rear GAWR 11,000, GCWR 26,000, 1994 36ft Avion 5er, GVWR 13,700, 2,740 Pin Weight.
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Old 12-31-2017, 09:21 AM   #6
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I spoke to Spartan the other day on this topic....there is a 9 pin Deutsch connector at the base of the steering column. There are also switches for "diagnostics" and "ABS".

the switches when on, flash a dashboard light to view fault codes. That's the easy way as no diagnostic tool required to get a sense of what's going on not right.

To plug in the J1939 scan tool, he suggests to use the diagnostic connector in the engine compartment (not the steering wheel one). He wasn't sure the two data wires go to the steering wheel connector...

It's possible, depending on your mechanics background, that he is looking for an "OBDII" connector that looks like a parallelogram, used in auto and light truck...in the Heavy Truck world, they use the 9 pin deutsch round connector. There are adapter cables to use the OBDII scan tool with the round connector....but, the scan tool must support J1939 protocol (at least on the Spartan / Cummins ISM).

So, not sure what your RV supports but maybe the above provides some insight.
2002 Newmar Mountain Aire Limited 4370 w/ Spartan K2 and Cummins 500hp
ASE Master Certified (a long.....time ago...)
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engine, light, serrano, thor

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