GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 1999 🢒 S10 - Electric 🢒 Body and Accessories 🢒 Body Control System 🢒 Body Control System Component Views
Figure 1:

Body Control Module (BCM), C200 and C203
Object Number: 363732 Size: MF
(1)C200
(2)Instrument Panel
(3)C203
(4)Body Control Module (BCM)
(5)Body Control Module (BCM) - C1
(6)Body Control Module (BCM) - C2
(7)Body Control Module (BCM) - C3
(8)Heater Controls
Figure 2:

Steering Column
Object Number: 363688 Size: MF
(1)Ignition Switch and Ignition Key In Alarm Switch
(2)Hazard Switch Connector
(3)Hazard Switch
(4)Supplemental Inflatable Restraint Steering Wheel Module Coil
(5)C215
(6)Supplemental Inflatable Restraint Wheel Inflator Module Connector
(7)Multifunction Switch
(8)Park Position Switch Connector
(9)C211 (A,B,C)
(10)BTSI Actuator
(11)Shift Lever
Figure 3:

Body Relay Block
Object Number: 390261 Size: LF
(1)Park Lamp Relay
(2)Courtesy Lamp Relay
(3)Retained Accessory Power Relay
(4)Power Seats Circuit Breaker (Not Used)
(5)Power Windows Circuit Breaker (Not Used)
(6)Inadvertent Power Relay
(7)Door Lock Relay (Not Used)
(8)Headlamp Ground Relay
(9)Driver Door Unlock Relay (Not Used)
(10)Door Unlock Relay (Not Used)
Figure 4:

Daytime Running Lamp (DRL) Relay
Object Number: 477202 Size: LF
Figure 5:

Headlamp Power Relay
Object Number: 478632 Size: LF
Figure 6:

HORN Relay
Object Number: 478634 Size: LF
Figure 7:

Body Control Module Details
Object Number: 384271 Size: LF
(1)HVAC Assembly
(1)HVAC Assembly
(2)Body Control Module