Technician A says Chrysler OBD-I (1981-1995) vehicles were equipped with a BUS system called Serial Communications Interface (SCI). Technician B says The Chrysler Programmable Controller Interface (PCI) is a three-wire communication protocol that connects at the OBD-II DLC at terminal 2. Which technician is correct?
A) Technician A only
B) Technician B only
C) Both technicians A and B
D) Neither technician A nor B

Question

Quizplus · Accepted Answer

Technician A is correct because Chrysler OBD-I vehicles indeed used a Serial Communications Interface (SCI) for diagnostics and communication. Technician B is incorrect because the Chrysler Programmable Controller Interface (PCI) is actually a one-wire communication protocol, not a three-wire.

Technician a Says Chrysler OBD-I (1981-1995) Vehicles Were Equipped with a BUS