Cummins Bench Harness pinout (pictures)

[buck02]

Anyone know where we can get the connectors and pins besides the dealer? They quoted me $149 for C1 and $169 for C2 for the 5.9L and they say they don't make any connectors for the 6.7l. Although it could be the dealer I went to.

I have about 82 pins with pigtails from an original connector. email me if you need some Blemoine02@aol.com

[dansdieselp]

I've got the C1 and C2 connectors and pins from a buddy that works at a Dodge dealer. The big C1 connector for the 5.9l is the same as the C2 connector for the 6.7l.

[vintagespeed]

the pinouts for C1 & C2 are listed in the service manual pages 8w-80-79 thru 8w-80-81

[S10Wildside]

No good. With the ECU connected and ignition ON, I read less than 1 volt at the diagnostic connector. The power supply being used is an AC to DC wall adapter (1.5 amp)...which has been sufficient for all gasonline ECUs.

C1
4 - CAN+
5 - CAN-

C2
21 - Ground
30 - Battery +12
32 - Start/Run +12
40 - Battery +12
49 - Ground
50 - Ground

Shown in above image.

The big C2 connector for the 5.9l is the same as the C2 connector for the 6.7l.

When I match up the common connector between the 2006 and 2009, for the 2006 ECU, C2 is on the left and C1 is on the right.

[joecar]

S10, thanks for posting pics

[S10Wildside]

S10, thanks for posting pics

No problem, but something is wrong in that pic. Either C1 and C2 are mixed or the programming pinouts are wrong.

[GMPX]

You got C1 & C2 the wrong way around.
C1 is the bigger 60 pin connector, C2 is the 50 pin connector. Hope you didn't kill it! When you get it running, please send us a read of the ECM too
When you have some of the Cummins and the Bosch ECM connectors ready for sale we'll take a bunch, I'm sick of pushing open pins on to these weirdo ECM's.

[S10Wildside]

The big C1 connector for the 5.9l is the same as the C2 connector for the 6.7l.

Thank you for correcting this.

[S10Wildside]

After understanding which was C1 and C2, all is well. I built a new programming harness because I cannot figure out how to release the terminals from the connectors. Deutsch should take notes from Delphi and Molex on how to make connectors.



Just a few comments...
Auto Detect failed. I had to manually select the controller.
The read process took more than 10 minutes.

[GMPX]

Mike, I just got your file, but it's no good.
It appears you are running old V8 software and outdated firmware, it looks like you using a release from Nov 2010.
If you update your software and firmware at the same time to the versions listed in THIS thread, try re-reading the ECM then, it should auto detect and the read time will drop too.

Cheers,
Ross