Fuse Block Connector End View - I/P Bottom View

Fig 1: Fuse Block - I/P Bottom View

Courtesy of GENERAL MOTORS CORP.

Fuse Block - I/P C1 Pin Identification

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12193906 68-Way F Metri-pack 280 Series (BLK)
Pin	Wire Color	Circuit No.	Function
A1	-	-	Not Used
A2	GRY/BLK	255	Power Door Lock Fuse Supply Voltage
A3	-	-	Not Used
A4	TAN/BLK	254	Power Door Unlock Fuse Supply Voltage
A5-A6	-	-	Not Used
A7	ORN	4240	Battery Positive Voltage
A8	YEL	1618	Trailer Left Rear Turn/Stop Lamp Supply Voltage
A9	DK GRN	1619	Trailer Right Rear Turn/Stop Lamp Supply Voltage
A10	ORN	3040	Battery Positive Voltage
A11	DK BLU	2115	Right Turn Signal Lamps Supply Voltage
A12	RED	42	Battery Positive Voltage
B1	YEL	143	Accessory Voltage
B2	YEL	43	Accessory Voltage
B3-B7	-	-	Not Used
B8	WHT	17	Stop Lamp Switch Signal
B9-B11	-	-	Not Used
B12	ORN	2140	Battery Positive Voltage
C1-C3	-	-	Not Used
C4	BRN	41	Ignition 3 Voltage
C5	-	-	Not Used
C8	LT BLU	1620	Trailer CHMSL Supply Voltage
C9-C12	-	-	Not Used
D1	YEL	243	Accessory Voltage
D2	-	-	Not Used
D3	BRN	341	Ignition 3 Voltage
D4	-	-	Not Used
D5	BRN	441	Ignition 3 Voltage
D8-D9	-	-	Not Used
D10	BLK/WHT	1851	Ground
D11-D12	-	-	Not Used
E1	BRN	241	Ignition 3 Voltage - Air Suspension Control Switch (w/ZM6)
	BRN	241	Ignition 3 Voltage - Air Suspension Control Module (w/ZM6)
E2	BRN	241	Ignition 3 Voltage
E3	-	-	Not Used
E4	GRY	118	Left Front Door Speaker Output (-)
	GRY	118	Left Front Tweeter Speaker Output (-)
E5	BRN	1046	DDM Class 2 Serial Data
E6	-	-	Not Used
E7	PNK	1691	Automatic Day/Night Mirror Low Reference
E8	WHT	530	Ignition 0 Voltage
E9	-	-	Not Used
E10	RED	842	Battery Positive Voltage
E11	ORN	4040	Battery Positive Voltage
E12	ORN	2240	Battery Positive Voltage
F1	YEL	343	Accessory Voltage
F2	-	-	Not Used
F3	LT BLU	2114	Left Turn Signal Lamps Supply Voltage
F4	GRY	1690	Automatic Day/Night Mirror Signal
F5	TAN	201	Left Front Door Speaker Output (+)
	TAN	201	Left Front Tweeter Speaker Output (+)
F6	BLK	1050	Ground
F7	-	-	Not Used
F8	PNK	1020	Off/Run/Crank Voltage
F9	LT BLU	1320	CHMSL Supply Voltage/Stop Lamp Supply Voltage
F10-F12	-	-	Not Used

Fuse Block - I/P C2 Pin Identification

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12193930 6-Way F Metri-pack 280 Series Flexlock (BLK)
Pin	Wire Color	Circuit No.	Function
A	ORN	300	Ignition 3 Voltage
B	LT GRN	1427	Right Turn Signal Switch Signal
C	DK GRN	1428	Left Turn Signal Switch Signal
D	WHT	111	Hazard Switch Signal
E	WHT	1390	Off/Run/Crank Voltage
F	BRN	4	Accessory Voltage

Fuse Block - I/P C3 Pin Identification

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12194035 12-Way F Metri-pack 280 Series (BLK)
Pin	Wire Color	Circuit No.	Function
A-B	-	-	Not Used
C	ORN	1240	Battery Positive Voltage
D	BLK	1050	Ground
E	-	-	Not Used
F	ORN	4140	Battery Positive Voltage
G	TAN	201	Left Front Speaker Output (+)
H	PNK	1691	Automatic Day/Night Mirror Low Reference
J	BRN	1046	DDM Class 2 Serial Data
K	GRY	1690	Automatic Day/Night Mirror Signal
L	GRY	118	Left Front Speaker Output (-)
M	-	-	Not Used

Fuse Block - I/P C4 Pin Identification

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		15328768 12-Way F Metri-pack 280 Series Flexlock (BRN)
Pin	Wire Color	Circuit No.	Function
A	-	-	Not Used
B	BRN	541	Ignition 3 Voltage - Left Rear Heated Seats (w/KA7)
	BRN	541	Ignition 3 Voltage - Right Rear Heated Seats (w/KA7)
C-D	-	-	Not Used
E	TAN	294	Left Rear Door Lock Actuator Unlock Control
	TAN	294	Right Rear Door Lock Actuator Unlock Control
F	TAN	294	Door Lock Actuator Unlock Control
G	-	-	Not Used
H	LT BLU	1620	Trailer CHMSL Supply Voltage
J	-	-	Not Used
K	GRY	295	Left Rear Door Lock Actuator Lock Control
	GRY	295	Right Rear Door Lock Actuator Lock Control
L	GRY	295	Door Lock Actuator Lock Control
M	ORN	1240	Battery Positive Voltage