Post Number: 6
|Posted on Monday, 21 May, 2018 - 06:40 pm: |
Im new here so youll need to forgive newbie questions. Do RR SS1 have an early version of the modern OBD? I saw a pic somewhere of some sort of circular diagnostic connector but i dont know if they existed in the 1970's. Any advice appreciated.
Post Number: 1877
|Posted on Monday, 21 May, 2018 - 07:04 pm: |
I have never found one if they ever did.
Always taught to use the Sun Crypton scope engine tester manometer etc.
Maybe Paul will bring us up to date?
Robert J. Sprauer
Post Number: 29
|Posted on Monday, 21 May, 2018 - 08:41 pm: |
OBD II platform was adopted by the industry in 1996. Before that each manufacturer, if they had diagnostics was in many cases specific to the manufacturer.
Post Number: 7
|Posted on Monday, 21 May, 2018 - 08:54 pm: |
Apparently in about 1990 they were called a mastercheck socket. I have a google pic but cant upload it here
Post Number: 372
|Posted on Monday, 21 May, 2018 - 09:20 pm: |
Pretty sure the SSI had nothing related.
SSII had a diagnostic box for the automatic A/C, but that would still be pretty far removed from OBD.
Post Number: 2896
|Posted on Monday, 21 May, 2018 - 09:39 pm: |
The early Mastercheck socket pin diagrams have been supplied by Paul Yorke previously:
Also by Brian Vogel:
A range of images and pin connections are on the following link:
Omar M. Shams
Post Number: 1525
|Posted on Tuesday, 22 May, 2018 - 12:15 am: |
The short answer is no. In the 70s Electronics only existed in NASA and none of that had reached the world of cars. They relied on mechanics and electricians to troubleshoot cars.
We are those mechanics and electricians so use us to troubleshoot your car problems.
Post Number: 2574
|Posted on Tuesday, 22 May, 2018 - 12:52 am: |
The long answer is, "No," too.
The OBD-II standard was not adopted in production vehicles (at least in the USA, and I think we were one of the earliest) until the 1996 model year.
Original OBD came earlier, but not until around the mid-1980s at least. My 1989 Cadillac has an actual port for a connector, but even then it was almost never used and the codes could be read by pressing a combination of buttons on the climate control when starting the cars and the stored codes would be presented in the fuel center window. It's not all that different than the way RR presented codes via "blink codes" before OBD as we know it became the de facto standard.
What Mr. Poolen describes is the venerable MasterCheck port, which was RR's in-house version of on-board diagnostics before anything was standardized about it, and for the extent of what could be queried they were well ahead of the times by about half a decade. When OBD-II became required for the cars to be sold in the USA the standard port was just grafted into the existing wiring for the MasterCheck system.
There was nothing even vaguely like the original OBD in the Shadows and derivatives.
Post Number: 8
|Posted on Tuesday, 22 May, 2018 - 12:03 pm: |
outstanding information - thank you all