DAF LF 45 Cummins Insite

[Fool2cool]

Hi, i have a few DAF LF 45's 130hp ISBe, 2005 reg. I want to be able to use cummins insite with them to alter certain parameters such as PTO and idle shutdown. I know i need cummins insite and a nexiq adapter, but what leads would i need and where would i connect to?

I have looked at the engine loom and saw a two pin connector but couldnt easily see any other connectors, the nexiq seems to come with a 6 and 9 pin deutsch connector for the in cab connections? I couldnt find a connector in the cab either.

Could anyone please help me with what adapters i would need and where i would connect to?

Many Thanks
Chaz

[integlikewhoa]

There has to be something in the Cab, probley just hidden. What about for ABS in that truck?

[Fool2cool]

Im sorry what do you mean about ABS? Ive never tried connecting to the ABS either, ill have a closer look in the cab for a connector, would it be ok to alter features and parameters from the port in the cab, i read somewhere that conflicts can occur when using that port so its best to connect to the engine harness?

Does anyone have any clues as to where the connector would be located inside the cab?

Many Thanks
Chaz

[integlikewhoa]

Im sorry what do you mean about ABS? Ive never tried connecting to the ABS either, ill have a closer look in the cab for a connector, would it be ok to alter features and parameters from the port in the cab, i read somewhere that conflicts can occur when using that port so its best to connect to the engine harness?

Does anyone have any clues as to where the connector would be located inside the cab?

Many Thanks
Chaz

I only connect to the one in the cab. Every bus I work on does not have one in the engine compartment. The one in the cab still leads to the engine computer anyways. So why would it matter where the connector is located.

[Fool2cool]

Ive heard that sometimes theres too much data flowing along that bus communication line and that when performing a recalibration the calibration can become corrupted, i will look for the port in the cab though when i have a chance, do you think it would be mentioned it any workshop manuals? about its location.

Thank you for your help
Chaz

[integlikewhoa]

Ive heard that sometimes theres too much data flowing along that bus communication line and that when performing a recalibration the calibration can become corrupted, i will look for the port in the cab though when i have a chance, do you think it would be mentioned it any workshop manuals? about its location.

Thank you for your help
Chaz

Not sure about manuals, but shouldn't be hidden.

Here is something to think about.
About what you said about data flowing. Well if the vehicle has a shared data bus system (which all my buses do) they all share one connector in the cab, engine, trans, anti-lock brakes and such. (Which is probably why mine doesn't have a separate connector in the engine bay.)
The engine computer only has one set of pins for data going in and out and even if there was another connector in the engine bay it would have the same data on it as in the cab. So no advantage.
Same goes for if the engine was stand alone. If it was stand alone and not connected to any other moduals, it again wouldn't matter where the connector is located or if the waires were spliced and there was 2 connectors.

Only think I could see is if you disconnected all engine wires going to the cab and plugged into a connector by the engine (if there is one) I don't see any reason for this tho, unless you troubleshooting engine problems that you think could be cause by remote pedal system or interlock or some other other third party system affecting engine performance or function.

Also to ease you. I have 40ft rear engine buses and I flash all my buses with shared connector in front of bus.

[Fool2cool]

Ok thank you very much, ill look for the connector in the cab, youve put my mind at ease.

Thanks for all the help
Chaz

[dimitar22]

Not sure about manuals, but shouldn't be hidden.

Here is something to think about.
About what you said about data flowing. Well if the vehicle has a shared data bus system (which all my buses do) they all share one connector in the cab, engine, trans, anti-lock brakes and such. (Which is probably why mine doesn't have a separate connector in the engine bay.)
The engine computer only has one set of pins for data going in and out and even if there was another connector in the engine bay it would have the same data on it as in the cab. So no advantage.
Same goes for if the engine was stand alone. If it was stand alone and not connected to any other moduals, it again wouldn't matter where the connector is located or if the waires were spliced and there was 2 connectors.

Only think I could see is if you disconnected all engine wires going to the cab and plugged into a connector by the engine (if there is one) I don't see any reason for this tho, unless you troubleshooting engine problems that you think could be cause by remote pedal system or interlock or some other other third party system affecting engine performance or function.

Also to ease you. I have 40ft rear engine buses and I flash all my buses with shared connector in front of bus.

As far as i know when you do recallibrations of an ecm you should connect to the nearest connector which is the two pin connector in the engine bay. And about diagnostics it does not meather.

[integlikewhoa]

As far as i know when you do recallibrations of an ecm you should connect to the nearest connector which is the two pin connector in the engine bay. And about diagnostics it does not meather.

Cummins Inline don't come with 3 pin connectors for reprogramming in the USA anymore. 3 Pin were older no powered data line which you have to add your own ground and 12v and switched voltage. If you buy a reprogramming setup here in the USA inline5 and software you get only 6 and 9 pin connectors. They used to sell 3 pin setups, but I don't even see those for sale anymore and they show optional. Only reason I used them was for (pre 2002) Dodge pick up trucks here in the USA that had cummins motors in them. And again A connection close to the computer still taps into the same data lines as used else where.

Cummins Catalog

Cummins Inline Insite Compatibility

[dafdiagnos]

on daf lf the connection to the ecsdc3 is the two pin plug on the engine. the other connections are next to the drivers seat under a small plastic panel. here you will find three connectors, the main one being the round connector which is used for connecting the davie

[Chadleynet]

Just for editing features and parameters with insite, you can use the 6 or 9 pin deutsch connector in the dash. The only reason you should need to use the 3 pin deutsch on the engine is for calibrating; although it can be done through the dash, just a higher chance of failure. The 3 pin is what Cummins calls a "Private J1939 Datalink", it bypasses any interference caused on the public J1939 datalink such as OEM devices, and ABS.

The 3 Pin

[integlikewhoa]

it bypasses any interference caused on the public J1939 datalink such as OEM devices, and ABS.

The 3 Pin

Can you confirm it has separate input pins on the computer? Is there J1939 public input and J1939 private input pins on the computer?

[Chadleynet]

Can you confirm it has separate input pins on the computer? Is there J1939 public input and J1939 private input pins on the computer?

Yes, the private three pin backbone on an ISX 871 for instance is on the engine harness, and the public side is on the OEM harness.

[integlikewhoa]

Yes, the private three pin backbone on an ISX 871 for instance is on the engine harness, and the public side is on the OEM harness.

In the harness yes, but on the ECM does it have different pins. Look at a wiring diagram. On the computer does it have more then 1 J1939 set of inputs?

[jctech]

Ok thank you very much, ill look for the connector in the cab, youve put my mind at ease.

Thanks for all the help
Chaz

The round Davie connector is by the drivers seat on a RH drive model, you will need to make an adapter to connect to your Inline adapter to the J1939 pins of the Davie connector. This connector has battery voltage and ground as well.
Otherwise you are stuck with the 2 pin J1708 connector on the engine