For reference only Circa 1995/96 on GM cars and 1995/97 on Mitsubishi's a system known as OBD 1.5 was used, this was an OBD I system which utilised the 16 pin OBD II diagnostic connector. On no account should a ODB-II Interface be used on such systems, only An OBD I code reader must be connected to these systems.
Since we are dealing with OBD-II Here and not the JDT (Jaguar Diagnostic tool) the following information is useful only to owners and garages the are servicing 1996 or later Jaguars.
OBD-II is an improvement over OBD-I in many ways, most noticeably the capability and quantity of information accessible on the vehicle. Also the fact that it is now standardised means that interfaces are easy and relatively cheap to purchase and have standard connectors, protocols and pin assignments The service socket must also be within 30cm of the driver and must not be inaccessible, i.e. not hidden under fixed trim. (although a snap in cover is allowed - such as in VAG (Volkswagen Audi Group) vehicles)
As a result of this standardisation a number of DTC's are generic across OBD-II. These include many in the P (power-train) range but do not include Manufacture specific codes from the B (Body), C (Chassis) and U (network) ranges |
