Fuse Block Identification View - Rear, Bottom View

WARNING: This page is about a different car, the 2002 Oldsmobile Bravada, 2002 GMC Envoy XL, 2002 GMC Envoy, and 2002 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Fuse Block Identification View - Rear, Bottom View

Courtesy of GENERAL MOTORS CORP.

Fuse Block Connector Identification - Rear C1

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		15319896 68-Way F Metri-Pack 280 Series Flexlock (BLK)
Pin	Wire Color	Circuit No.	Function
A1	-	-	Not Used
A2	BRN/WHT	230	Instrument Panel Lamps Dimming Control
A3	-	-	Not Used
A4	LT GRN	24	Backup Lamp Supply Voltage
A5	-	-	Not Used
A6	BRN	4	Accessory Voltage
A7	YEL	143	Accessory Voltage
A8	BRN	341	Ignition 3 Voltage (K34)
A8	BRN	341	Ignition 3 Voltage (K34)
A9	LT GRN/BLK	735	Outside Air Temperature Sensor Signal
A10	PPL/WHT	1382	LED Dimming Signal
A11	-	-	Not Used
A12	ORN	1732	Courtesy Lamps Supply Voltage
A12	ORN	1732	Courtesy Lamps Supply Voltage
B1	LT BLU	1134	Park Brake Switch Signal
B2	BRN/WHT	230	Instrument Panel Lamps Dimming Control
B3	BRN	2309	Front Park Lamps Supply Voltage
B4	WHT	17	Stop Lamp Switch Signal
B5	LT BLU	1320	Stop Lamp Supply Voltage
B5	LT BLU	1320	Stop Lamp Supply Voltage
B6-B7	-	-	Not Used
B8	BRN	341	Ignition 3 Voltage
B8	BRN	341	Ignition 3 Voltage
B9	-	-	Not Used
B10	PPL/WHT	1382	LED Dimming Signal
B10	PPL/WHT	1382	LED Dimming Signal
B11-B12	-	-	Not Used
C1	ORN	4340	Battery Positive Voltage
C1	ORN	4340	Battery Positive Voltage
C2	-	-	Not Used
C3	BRN	2309	Front Park Lamps Supply Voltage
C4	LT BLU	2114	Left Turn Signal Lamps Supply Voltage
C4	LT BLU	2114	Left Turn Signal Lamps Supply Voltage
C5	YEL	685	Left Turn Signal Flasher Signal
C8	BRN	341	Ignition 3 Voltage
C8	BRN	341	Ignition 3 Voltage
C9-C12	-	-	Not Used
D1	ORN	340	Battery Positive Voltage
D2	-	-	Not Used
D3	BRN	2109	Trailer Park Lamps Supply Voltage
D4	DK BLU	2115	Right Turn Signal Lamps Supply Voltage
D4	DK BLU	2115	Right Turn Signal Lamps Supply Voltage
D5	TAN	686	Right Turn Signal Flasher Signal
D8	BRN	141	Ignition 3 Voltage
D9	ORN	300	Ignition 3 Voltage
D10	BLK	481	Rain Sense Signal 1
D11	-	-	Not Used
D12	PNK	39	Ignition 1 Voltage
E1-E2	-	-	Not Used
E3	ORN	1040	Battery Positive Voltage
E4	-	-	Not Used
E5	BRN	341	Ignition 3 Voltage
E6	WHT	1390	Ignition 0 Voltage
E7	PNK	1020	Ignition 0 Voltage
E8	BRN	241	Ignition 3 Voltage
E8	BRN	241	Ignition 3 Voltage
E9	-	-	Not Used
E10	BRN	718	Low Reference
E11	-	-	Not Used
E12	PNK	639	Ignition 1 Voltage
F1	-	-	Not Used
F2	YEL	1977	Rear Fog Lamp Relay Control
F3	ORN	1040	Battery Positive Voltage
F4	PNK	1020	Off/Run/Crank Voltage
F5	BRN	341	Ignition 3 Voltage
F6-F7	-	-	Not Used
F8	BRN	441	Ignition 3 Voltage
F9-F11	-	-	Not Used
F12	GRY/BLK	690	Courtesy Lamp Low Control

Fuse Block Connector Identification - Rear C2

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		15319894 68-Way F Metri-Pack 280 Series Flexlock (NAT)
Pin	Wire Color	Circuit No.	Function
A1	ORN	3640	Battery Positive Voltage
A2	BRN/WHT	230	Instrument Panel Lamps Dimming Control
A2	BRN/WHT	230	Instrument Panel Lamps Dimming Control
A3	ORN	1340	Battery Positive Voltage
A4-A5	-	-	Not Used
A6	ORN	2740	Battery Positive Voltage
A6	ORN	2740	Battery Positive Voltage
A7	-	-	Not Used
A8	ORN	1240	Battery Positive Voltage
A8	ORN	1240	Battery Positive Voltage
A9	DK GRN	1188	Power Window Switch Right Rear Down Signal
A10-A11	-	-	Not Used
A12	LT GRN /BLK	748	Right Rear Door Ajar Switch Signal
B1	RED	122	Rear Fog Lamp Supply Voltage
B2	LT BLU	1320	Stop Lamp Supply Voltage
B3	ORN	1340	Battery Positive Voltage
B4	DK BLU	2115	Right Turn Signal Lamps Supply Voltage
B4	DK BLU	2115	Right Turn Signal Lamps Supply Voltage
B5	-	-	Not Used
B6	ORN	2740	Battery Positive Voltage
B7	-	-	Not Used
B8	ORN	1240	Battery Positive Voltage
B9-B12	-	-	Not Used
C1	ORN	3540	Battery Positive Voltage
C2	LT BLU	1320	Stop Lamp Supply Voltage
C3	LT BLU	2114	Left Turn Signal Lamps Supply Voltage
C3	LT BLU	2114	Left Turn Signal Lamps Supply Voltage
C4	-	-	Not Used
C5	ORN	4440	Battery Positive Voltage
C6-C9	-	-	Not Used
C10	ORN	4140	Battery Positive Voltage
C11	-	-	Not Used
C12	LT BLU	2265	Power Window Lockout Left Rear Signal
D1	ORN	3540	Battery Positive Voltage
D2	BRN	2509	Left Rear Park Lamps Supply Voltage
D3-D4	-	-	Not Used
D5	ORN	3740	Battery Positive Voltage
D8	TAN	294	Door Lock Motor Unlock Control
D8	TAN	294	Door Lock Motor Unlock Control
D9	-	-	Not Used
D10	ORN	4240	Battery Positive Voltage
D11	-	-	Not Used
D12	LT GRN	2266	Power Window Lockout Right Rear Signal
E1	ORN	840	Battery Positive Voltage
E2	BRN	2509	Left Rear Park Lamps Supply Voltage
E3	-	-	Not Used
E4	ORN	3140	Battery Positive Voltage
E4	ORN	3140	Battery Positive Voltage
E5	LT GRN	24	Backup Lamp Supply Voltage
E5	LT GRN	24	Backup Lamp Supply Voltage
E6	-	-	Not Used
E7	DK GRN	1488	Noise Reduction Microphone Supply Voltage
E8	LT GRN/BLK	1354	Drain Wire
E9	YEL	1187	Power Window Switch Left Rear Down Signal
E10	ORN	2040	Battery Positive Voltage
E11	-	-	Not Used
E12	GRY/BLK	1186	Power Window Switch Right Rear Up Signal
F1	YEL	820	CHMSL Supply Voltage
F2	BRN/WHT	2609	Right Rear Park Lamps Supply Voltage
F3-F5	-	-	Not Used
F6	GRY	295	Door Lock Motor Lock
F6	GRY	295	Door Lock Motor Lock
F7	GRY	1690	Automatic Day/Night Mirror Signal
F8	BLK	1350	Ground
F9	PNK	1691	Automatic Day/Night Mirror Low Reference
F10	LT BLU/BLK	747	Left Rear Door Ajar Switch Signal
F11	-	-	Not Used
F12	WHT	1185	Power Window Switch Left Rear Up Signal

Fuse Block Connector Identification - Rear C3

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		15319893 32-Way F Metri-Pack 280 Series Flexlock (MD GRY)
Pin	Wire Color	Circuit No.	Function
A1	GRY	1690	Automatic Day/Night Mirror Signal
A2	BLK	1350	Ground
A3	PNK	1691	Automatic Day/Night Mirror Low Reference
A4	ORN	1740	Battery Positive Voltage
A5-A6	-	-	Not Used
B1	DK GRN	1488	Noise Reduction Microphone Supply Voltage
B2	DK GRN	801	RAP Fuse Supply Voltage (Body Type VIN 6)
B3	LT GRN/BLK	1354	Drain Wire
B4	DK BLU	1353	RAP Supply Voltage
B5	-	-	Not Used
B6	GRY/BLK	690	Courtesy Lamp Low Control
C1	-	-	Not Used
C2	DK GRN	801	RAP Supply Voltage (Body Type Vin 6)
C3-C6	-	-	Not Used
D1-D5	-	-	Not Used
D6	LT GRN	24	Backup Lamp Supply Voltage
E1	ORN	3140	Battery Positive Voltage
E2	PNK	639	Ignition 1 Voltage
E3	BRN/WHT	230	Instrument Panel Lamps Dimming Control
E4	ORN	1740	Battery Positive Voltage
E5	-	-	Not Used
E6	BRN	718	Low Reference
F1	YEL	443	Accessory Voltage
F2	-	-	Not Used
F3	LT GRN/BLK	735	Outside Air Temperature Sensor Signal
F4	BLK	481	Rain Sense Signal 1
F5	-	-	Not Used
F6	ORN	1732	Courtesy Lamps Supply Voltage

Fuse Block Connector Identification - Rear C4

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		15077187 40-Way Flat Wire
Pin	Wire Color	Circuit No.	Function
A1	-	-	TBC 2 Fuse
A2	-	-	Not Used
A3	-	-	Right Rear Door Ajar Switch Signal
A4	-	-	Park Brake Switch Signal
A5	-	-	Door Lock Relay Coil Ground
A6	-	-	Power Window Lockout Left Rear Signal
A7	-	-	Not Used
A8	-	-	Left Rear Door Ajar Switch Signal
A9-A10	-	-	Not Used
A11	-	-	Ground
A12	-	-	RAP Supply Voltage
A13	-	-	Door Unlock Relay Coil Ground
A14	-	-	Park Lamp Relay Coil Ground
A15-A17	-	-	Not Used
A18	-	-	TBC IG Fuse
A19	-	-	TBC IGN 1 Fuse
A20	-	-	TBC Run Fuse
B1	-	-	Instrument Panel Lamps Dimming Control
B2	-	-	Instrument Panel Lamps Dimming Control
B3	-	-	Courtesy Lamp Supply Voltage
B4	-	-	TBC 3 Fuse
B5	-	-	Power Window Switch Right Rear Up Signal
B6	-	-	Power Window Lockout Right Rear Signal
B7	-	-	Power Window Switch Right Rear Down Signal
B8	-	-	Power Window Switch Left Rear Up Signal
B9	-	-	Power Window Switch Left Rear Down Signal
B10	-	-	Not Used
B11	-	-	Ground
B12	-	-	Backup Lamp Supply Voltage
B13	-	-	TBC 5 Fuse
B14	-	-	LED Dimming Signal
B15	-	-	TBC ACC Fuse
B16	-	-	Not Used
B17	-	-	ITBC 4 Fuse
B18	-	-	Courtesy Lamps Supply Voltage
B19	-	-	Rear Fog Lamp Relay Coil Ground
B20	-	-	Not Used