Can't use diag software..... grrrrrrr !!!

[supercopa]

on my 2004 Tuscan S Mk1, tried to connect a laptop as shown and explained everywhere

took connections on the 16 pin OBD connection, took number 2, 3 and 5 wires from the OBD and put them to a standard serial cable (got one on racing green on line shop)

can't manage to connect to the ECU, and I don't know why....

please help me !!! I'm desesperate.

[glow worm]

I was told not all OBD connectors are connected, unless you know its worked before, use the three pin connector near the fuse box.

Edited by glow worm on Tuesday 14th October 17:10

[PetrolHeadPete]

assume the serial port thinggy is a USB one?
if so what com port number did it get assigned ?

[supercopa]

there is a three pin connector near the fuse box?

where is it exactly? how does it look like? anyone having a pic of it? thanks a lot !

@Pete : it gets the COM1 port.

Edited by supercopa on Thursday 16th October 09:01

[s6boy]

supercopa said:

.....there is a three pin connector near the fuse box?

where is it exactly?

Assuming you have a right hand drive car it's down by your right knee and further forward when sitting at the wheel. Often cable tied up to stop it swinging in the breeze.

[supercopa]

I've got a left hand drive Tuscan S (yes it's possible...) and the fuse box is on the left of the car near my left knee...

[glow worm]

Edited by glow worm on Thursday 16th October 10:01

[supercopa]

thank you very much for the picture

I can't understand I've got a 2 pod plug at this place instead of a three pod one... argghhhh...

[custardkid]

the 2 plug one is for th dash....... keep looking...

[glow worm]

I bought an OBD2 cable off e-bay, to test my OBD connector....s/w shows ECU not connected, even after repeated attempts with connect ECU command...Switch to the 3 pin plug (by the fusebox) and ECU connects OK. I'm using an old Laptop with a 9 pin serial port...so I suspect as I stated earlier, at least my OBD connector in the car is dead.

This was the pin out of the cable I bought.

OBDII 16 PIN(Male) DB9PIN (Female)
(J2850 BUS+) 2----------------------------7
(Chassis Ground) 4--------------------------1+2
(Signal Ground) 5---------------------------1+2
(CAN High J-2284) 6-----------------------3
(ISO 9141-2 K Line) 7---------------------4
(J2850 BUS- ) 10--------------------------6
(CAN Low J-2284) 14---------------------5
(ISO 9141-2 L Line) 15--------------------8
(Battery Power) 16-------------------------9

This pin out is different from the one you used...I'll check with VARLEYHDs guide. http://www.varleyhyd.com/FJ062.asp#ecuconnection

I'm using the multiple yellow Cerbie s/w rather than the single Blue Cerbie s/w. The Blue version will not work with my level of MBE ECU.

Edited by glow worm on Saturday 18th October 13:11

Looks like the cable is different ...so I'll mod it this afternoon and try again.

Edited by glow worm on Saturday 18th October 13:19

[glow worm]

Tried with
OBD Pin 2 to Serial Pin 3
OBD Pin 3 to Serial Pin 2
OBD Pin 5 to Serial Pin 5
which I think is what VARLEYHD says and still no joy......use the 3 pin connector easier..


Has anyone successfully used the 16 pin OBD connector??????

Edited by glow worm on Saturday 18th October 18:39