GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
Buick
🢒
2003
🢒
Century
🢒 Power, Ground, MIL, DLC Figure
Power, Ground, MIL, DLC Figure
Module Power, Ground, Serial Data, and MIL
Master Electrical Component List
Powertrain Control Module Description
5 Volt and Low Reference Bussing
OBD II Symbol Description Notice
RAP RELAY, Underhood Accessory Wiring Junction Block, ECM SENSE, B/U LAMP, ALT/SENSE, AIR fuses
IGN1, SDM, T/SIG, CRUISE, PCM PASSKEY/CLUSTER fuses
IGN1, SDM, T/SIG, CRUISE, PCM PASSKEY/CLUSTER fuses
IGN1, SDM, T/SIG, CRUISE, PCM PASSKEY/CLUSTER fuses
IGN1, SDM, T/SIG, CRUISE, PCM PASSKEY/CLUSTER fuses
Class 2 Telltales
G100, G111, G113
Data Link Connector (DLC)