combi C6000GT Question

there is a amber light just to the left side of the directional switch lever. what does it mean when this light comes on?
its not in the book that came with the truck. the info I got from combi says nothing about it ether.
C6000GT SN 21388
  • Posted 1 Aug 2018 08:09
  • Discussion started by Parkway2
  • Texas, United States
Showing items 1 - 11 of 11 results.
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  • Posted 9 May 2024 18:59
  • Reply by Richard_Irwin
  • Monaghan, Ireland
Swoop is correct as always, haha. MIL/check engine light. The causes can be o2 sensors pre or post, depending on teir 2 3 or 4, it can be the electronic throttle body, the air sensor right below the throttle body on the intake mainfold, if it has the egr it could be that. or of course the ecm itself. This is on several combis with the gm 3.0 engine. They did away with this in the newer models with the lcd display, and they are kobota lpg engines now instead.
  • Posted 9 May 2024 11:16
  • Reply by adam_n
  • Utah, United States
yep it would go away if the problem is repaired
as for the software you can get it from impco, it is the spectrum psi software and i do not believe it requires any special adapter decoder box unless its a later tier 3 or 4 model, those might need the decoder but its been a while since i worked on one so maybe someone else could answer that. You can use a standard db9 serial cable or possibly a db9 null modem cable.

I couldn't remember about that light at first and was looking in the manuals for it but now that i think about it i ran into the same problem and discovered that myself on a cube model. The GT models are setup a little different so i couldn't answer that for sure at that time.
  • Posted 14 Aug 2018 11:31
  • Reply by swoop223
  • North Carolina, United States
You've been swooped!
In most cases the code will go away after a certain number of restarts.
  • Posted 14 Aug 2018 04:35
  • Reply by BREWSKI
  • Nebraska, United States
Thanks CamTron.
that's what other customer locations are saying too. engine light.
Do you have to go in and reset or delete code after the problem is fixed? or will light go out after so many hrs after fixing problem?
the truck was so low on oil it was not even registering on dip stick.
I did and oil and filter change and checked coolant.
guess I need to find someone with the software.
  • Posted 14 Aug 2018 02:05
  • Reply by Parkway2
  • Texas, United States
it's an engine management light. Need to have PSI diagnostic software to check it. I maintain 13 of these.
  • Posted 11 Aug 2018 06:47
  • Reply by CamTron
  • Illinois, United States
i saw the images you sent me

that one light indicator right in front of the directional switch as you said does not show in the manual, from the looks of it it may be some addon indicator put on the machine after production, it may even me some aftermarket system, i've never seen anything like that on any combi GT units i've worked on.
mohamed_m suggested an engine management light, i doubt that is what it is as it is not marked with any pictogram like the ones in the instrument cluster are marked and i wouldn't think combi would throw on an additional indicator light without any markings or explanation in the manual about it. But don't hold me to that as i've been wrong before ;o)

you could remove the cover and trace out the wiring and see where it leads to, that might give you an idea of what it's function might be.

one other option is to send in a request to combilift and ask them
info @ combilift.com (remove the spaces i added to the email address to make it work)
maybe they could give you some insight as well.

i had a thought to verify my doubts about it being an MIL light, you could disconnect an O2 sensor or some other sensor and run the machine and make it trigger the error and see if the light on the dash lights up.
just a thought ;o)
  • Posted 3 Aug 2018 22:13
  • Modified 3 Aug 2018 22:45 by poster
  • Reply by swoop223
  • North Carolina, United States
You've been swooped!
Engine Management Light (Yellow Light On Dash)
If this light comes on it means the engine control unit (ECU) has detected a problem with the engine.
If the light is on and the engine is running smoothly you can drive the truck. However, it should be checked at the earliest convenience.
If the engine is running poorly the truck should not be driven.
The ECU will store the fault information that will allow the fault to be diagnosed when the ECU is connected to a PC.
  • Posted 3 Aug 2018 14:14
  • Reply by mohamed_m
  • cairo, Egypt
I sent pictures to your email swoop.

I cant seen to up load images to the forum
light is amber / yellowish
  • Posted 2 Aug 2018 01:21
  • Modified 2 Aug 2018 01:27 by poster
  • Reply by Parkway2
  • Texas, United States
can you take a snapshot of the dash so we can see the instrument layout?
The manuals do not show any light anywhere around the directional switch as you said.
It's possible it may be some addon feature not published in the normal parts/service layout in the manuals.
Is the amber light by itself? or is it part of the instrument cluster?
  • Posted 1 Aug 2018 15:39
  • Reply by swoop223
  • North Carolina, United States
You've been swooped!
is this light is yellow ?
  • Posted 1 Aug 2018 15:01
  • Reply by mohamed_m
  • cairo, Egypt

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