Here's the pinout for the DLC (This only works for the JTEC PCM's...not the
NGC's - different BUS):
CAV CIRCUIT FUNCTION
1 - -
2 D25 20VT/YL PCI BUS
3 - -
4 Z12 18BK/TN GROUND
5 Z1 18BK GROUND
6 D20 20LG SCI RECEIVE
7 D21 20PK SCI TRANSMIT
8 - -
9 - -
10 - -
11 - -
12 - -
13 - -
14 D22 20PK/BK SCI RECEIVE
15 - -
16 M1 20PK FUSED B(+)
- Bernd
-----Original Message-----
From: owner-dakota-truck@bent.twistedbits.net
[mailto:owner-dakota-truck@bent.twistedbits.net] On Behalf Of Larry L Athey
Sent: Wednesday, May 26, 2004 9:20 PM
To: dakota-truck-moderator@bent.twistedbits.net
Subject: Re: DML: RE: Diagnostic Port Wiring
Eeegads, they're real proud of their stuff. $275 for a complete package?
Geez, a person could build a serial cable for about $10 to $15 in parts.
Bernd D. Ratsch wrote:
> You can actually buy this type of cable already from several sources -
> http://www.obd2.com (is one of them)
>
> - Bernd
>
> -----Original Message-----
> From: owner-dakota-truck@bent.twistedbits.net
> [mailto:owner-dakota-truck@bent.twistedbits.net] On Behalf Of Larry L
> Athey
> Sent: Wednesday, May 26, 2004 4:55 PM
> To: dakota-truck-moderator@bent.twistedbits.net
> Subject: DML: Diagnostic Port Wiring
>
>
>
> I'm new here, so I'm sure this message has probably been asked and
> answered numerous times. Please forgive me if this is redundant.
>
> Is there any chance at all that I could find out exactly what the
> pin-out assignments are on the diagnostic port on a 99 Dakota? I've done
> a lot of embedded programming and I've found that a lot of companies
> simply use a 9600 baud 8N1 serial connection on diagnostic ports found
> on everything from network routers all the way down to painfully simple
> things like home appliances.
>
> So, what I would like to do is find out if by chance the diagnostic
> port
> on a 99 Dakota is just a serial connection to the onboard computer. If
> so, I'd like to make a serial cable to connect a laptop computer to it
> with a basic terminal program running so I can see the error codes
> without having to take it to Autozone or a Dodge dealer.
This archive was generated by hypermail 2b29 : Tue Jun 01 2004 - 10:59:13 EDT