J1962

[xxalexx at ix.netcom.com]

> From:          martin at mgass.demon.co.uk
> To:            diy_efi at efi332.eng.ohio-state.edu
> Date:          Mon, 2 Mar 1998 16:28:32 +0000
> Subject:       J1962
> Priority:      normal
> Reply-to:      diy_efi at efi332.eng.ohio-state.edu

> Anybody able to shed lite on SAE-J1962 connector pin outs ?
> What are the pin outs ?
> 
> I have a vehicle in with J1962 16pin diagnostic connector (its a 1996 
> European GM vehicle).
> It has pins 3 thro to 7, 12 and 16 connected, the DTC's correspond to 
> OBDII numbers.
> I wonder if the vehicle is OBDII or a derivative of this.
> 
> I understand that having J1962  pin 7 and no pin 2 or pin 10 implies 
> ISO-9141-2 and that no pin 7 but a pin2 implies SAE J1850.
> 
> Thanks,
> 
> Martin
> -----------------------------------------------------------
> martin at mgass.demon.co.uk
> -----------------------------------------------------------
> 
> 
pin
7     K-line ISO
15   L-line ISO
2    + J1850
10  - J1850

Looks like ISO-9141 the L line is optional for modules
especially if you only have one node on vehicle bus.
alex