RAM 1500 Van V6-3.9L VIN X (1997)
Data Link Connector: Description and Operation
CIRCUIT OPERATION
Circuit M1 supplies battery voltage to the data link connector. Circuit M1 originates at the fuse in cavities 19 and 20 in the Power Distribution
Center (PDC).
Circuit D20 connects to cavity C29 of the Power-train Control Module (PCM). Circuit D20 is the SCI receive circuit for the PCM.
Circuit D21 connects to cavity C27 of the PCM. Circuit D21 is the SCI transmit circuit for the PCM.
Circuits Z12 provides ground for the data link connector.
