Town & Country Van 2WD V6-230 3.8L VIN L SMFI (1997)
Data Link Connector: Description and Operation
Data Link Connector
CIRCUIT OPERATION
Circuit M1 from fuse 10 in the Power Distribution Center (PDC) supplies battery voltage to the data link connector. A twisted pair of wires,
circuits D1 and D2 connect the data link connector to the CCD Bus.
Ground circuit Z11 splices to the data link connector. Circuit Z11 splices to circuit Z12. Both circuit connect to the PCM. Circuit Z2 also connects
to the data link connector.
Circuit D20 connects to cavity 75 of the PCM. Circuit D20 is the SCI receive circuit for the PCM.
Circuit D21 connects to cavity 65 of the PCM. Circuit D21 is the SCI transmit circuit for the PCM. The D21 circuit splices to the Transmission
Control Module (TCM).
The D6 circuit also connects between the data link connector and the TCM.
Helpful Information
Circuit Z12 also supplies ground for the PCM high current drivers and has the same termination point as circuit Z11.
If the system loses ground for circuits Z11 and Z12, the vehicle will not operate.
