GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 1999 🢒 Catera 🢒 Body and Accessories 🢒 Data Link Communications 🢒 Data Link Connector Schematics
Figure 1:

Cell 50 DLC Power and Ground
Object Number: 372898 Size: FS
Data Link Communications Components
Data Link Communications Operation
Cell 50 Sun Roof Actuator, TCM, ECM, and Instrument Cluster
OBDII Symbol Description Notice
Cell 10 Fuse Block, LH and RH Outside Rear View Mirro, DLC, and Gauge Cluster
Ground Distribution Schematics
Figure 2:

Cell 50 Sun Roof Actuator, TCM, ECM, and Instrument Cluster
Object Number: 372899 Size: FS
Data Link Communications Components
Data Link Communications Operation
Cell 50 ALC Sensor, Cruise Control Module, EBTCM, and Heater and A/C Control
SIR Caution
OBDII Symbol Description Notice
Figure 3:

Cell 50 ALC Sensor, Cruise Control Module, EBTCM, and Heater and A/C Control
Object Number: 372904 Size: FS
Data Link Communications Components
Data Link Communications Operation
Cell 50 DLC and All Modules
Cell 50 Sun Roof Actuator, TCM, ECM, and Instrument Cluster
OBDII Symbol Description Notice
Figure 4:

Cell 50 EBTCM and TCM CAN Interface


Object Number: 443806 Size: FS
Figure 5:

Cell 50 DLC and All Modules
Object Number: 372913 Size: FS
Data Link Communications Components
Data Link Communications Operation
Cell 50 ALC Sensor, Cruise Control Module, EBTCM, and Heater and A/C Control