Technician A says that the DLC on an OBD II vehicle has 18 pins. Technician B says that the pin assignment for the DLC on an OBD II vehicle has not changed since 1996. Who is correct?
A) A only
B) B only
C) both A and B
D) neither A nor B

Question

Quizplus · Accepted Answer

The DLC (Data Link Connector) on an OBD II (On-Board Diagnostics II) vehicle actually has 16 pins, not 18, making Technician A incorrect. The pin assignment for the DLC has been standardized since 1996 when OBD II was introduced, but saying it has not changed could be misleading as the statement might imply no updates or revisions, which isn't the case for all aspects of OBD II protocols and standards. However, the basic pinout configuration has remained consistent, making Technician B's statement somewhat accurate but not entirely clear in this context. Therefore, the most accurate answer is that neither technician is completely correct as presented in the question.

Technician a Says That the DLC on an OBD II