GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Pontiac 🢒 2000 🢒 Montana 🢒 Body and Accessories 🢒 Body Control System 🢒 Body Control System Schematics
Figure 1:

Cell 51: BCM: Ignition Input, Door Locks, Exterior Lamps Output
Object Number: 610378 Size: FS
Body Control Module Components
Body Control System Circuit Description
Cell 51: BCM: Interior Lights On Request, Horn Control
EBCM, BATT Main 1 and Radio Fuses
EBCM, BATT Main 1 and Radio Fuses
EBCM, BATT Main 1 and Radio Fuses
Ignition Switch, IGN Main 2, BCM PRORM, RR WPR/WSHR, MALL/Cluster and FRT/WPR/WSHR Fuses
IGN, SIR, T/S/G, Cruise, and PCM/Pass Key 1 Cluster Fuses
Cluster BATT, RR PWR SCKT, PWR Lock, Rap Relay, CTSY Lamp, FRT PWR SCKT, Cigar/DLC and PWR Mirror Fuses
IGN, SIR, T/S/G, Cruise, and PCM/Pass Key 1 Cluster Fuses
Ignition Switch, IGN Main 2, BCM PRORM, RR WPR/WSHR, MALL/Cluster and FRT/WPR/WSHR Fuses
EBCM, BATT Main 1 and Radio Fuses
Cell 110: License Lamps, Relay Center
Door Lock Switches
Cell 14: G200
00 UVAN IP Aud Warning Schematic Figure SIO
Cell 133: G200, G302
00 U-Van Seat Belts Schematics
Figure 2:

Cell 51: BCM: Interior Lights On Request, Horn Control
Object Number: 610380 Size: FS
Body Control Module Components
Body Control System Circuit Description
Cell 51: BCM: Ignition Input, Door Locks, Exterior Lamps Output
00 UVAN IP Aud Warning Schematic Figure SIO
2000 U-Van RAP fig sio
Vehicle Speed Sensor
Horns
Door Lock Switches
Power, Ground, Class 2 Data Line, Gauges
Door Lock Switches
Interior Lights Schematics (Cell 114: Door Locks, Sliding Door Jamb SwiTches, Liftgate Door Lock)
Cell 110: Taillamps, Side Markers, Park/Turn Lamps
Interior Lights Schematics (Cell 114: Headlamp and IP Lamp Dimmer Switch)