Regal V6-3.8L SC VIN 1 (1998)
Body Control Module: Description and Operation
Standard Body Module Serial Data CKT
The PCM uses the Class 2 serial data circuit to communicate with the vehicle Body Control Module (BCM) and other devices. The PCM ensures that
communication remains established by monitoring the serial data circuit for state of health messages from the the other devices using the circuit. If the
PCM detects a loss of the state of health serial data message from the BCM, DTC P1610 will set. For information concerning the various devices that
use the Class 2 serial data circuit, refer to Data Link Connector / Serial Data.