GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2000 🢒 Blazer - 2WD 🢒 Body and Accessories 🢒 Wiring Systems 🢒 Body Control System Component Views
Figure 1:

Doors (RF Shown, LF Opposite)
Object Number: 416725 Size: LF
(1)Door Lock Cylinder Switch Connector, RH
(2)Door Handle Switch Connector, RH
(3)Side Door Lock Actuator Connector, RH
(4)Door Lock Actuator, RH
(5)Side Window Regulator Motor and Connector, RH
(6)Splice S502 (LH)
(7)Splice S601 (RH), S501 (LH)
(8)Radio Speaker Connector, Front Side Door, RH
(9)C601 (RH), C500 (LH)
(10)C501 (LH)
(11)P600 (RH), P500 (LH)
(12)Outside Rear View Mirror Connector, RH
Figure 2:

Instrument Panel, LH (RH Similar)
Object Number: 357144 Size: LF
(1)Headlamp Switch Connector
(2)Fog Lamp Switch Connector
(3)Headlamp Switch
(4)Side Door Jamb Switch, LF
(5)IP Fuse Block
(6)S204
(7)C217
(8)Courtesy Lamp, LH Console
(9)Body Relay Block
(10)S223
(11)Radio Speaker, Front LH
Figure 3:

Instrument Panel Details, RH
Object Number: 357162 Size: MF
(1)Heater Controls
(2)C200
(3)C203
(4)Instrument Panel (IP)
(5)Body Control Module (BCM)
(6)Body Control Module (BCM), Connector C1
(7)Body Control Module (BCM), Connector C2
(8)Body Control Module (BCM), Connector C3
Figure 4:

Rear Door Wiring Harness (RH Shown, LH Opposite)-Door Jamb Switch
Object Number: 357306 Size: LF
(1)Side Door Jamb Switch, RH Rear (LH Opposite)
(2)Door
Figure 5:

Body Relay Block
Object Number: 668212 Size: LF
(1)Park Lamp Relay
(2)Courtesy Lamp Relay
(3)Retained Accessory Power (RAP) Relay
(4)Power Seats Circuit Breaker
(5)Power Windows Circuit Breaker
(6)Inadvertent Power Relay
(7)Door Lock Relay
(8)Headlamp Ground Relay
(9)Driver Door Unlock Relay
(10)Door Unlock Relay
Figure 6:

Body Relay Block (Envoy Only)
Object Number: 668222 Size: LF
(1)Park Lamp Relay
(2)Courtesy Lamp Relay
(3)Retained Accessory Power (RAP) Relay
(4)Power Seats Circuit Breaker
(5)Power Windows Circuit Breaker
(6)Inadvertent Power Relay
(7)Door Lock Relay
(8)High Beam Relay
(9)Driver Door Unlock Relay
(10)Door Unlock Relay
Figure 7:

Instrument Panel Fuse Block (Label)
Object Number: 389623 Size: MF
Figure 8:

Underhood Fuse Block Label
Object Number: 669174 Size: MF
Figure 9:

Underhood Fuse Block Label (Envoy Only)
Object Number: 389616 Size: MF
Figure 10:

HORN Relay
Object Number: 400506 Size: LF
Figure 11:

FOG LP Relay
Object Number: 400501 Size: LF
Figure 12:

HDLP PWR Relay
Object Number: 400503 Size: LF
Figure 13:

LIFT GLASS Relay
Object Number: 400507 Size: LF
Figure 14:

DRL Relay (Except Envoy)
Object Number: 667999 Size: LF
Figure 15:

DRL Relay, Envoy Only
Object Number: 668048 Size: LF
Figure 16:

LOW BEAM Relay, Envoy Only
Object Number: 668023 Size: LF