Body Control System Connectors

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2004 GMC Yukon XL, 2004 GMC Yukon, 2004 Chevrolet Tahoe, 2004 Chevrolet Suburban, and 2004 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

Body Control Module (BCM) - C1

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12177194 6-Way F Metri-Pack 150 Series (NAT)
Pin	Wire Color	Circuit No.	Function
A	RED	2353	Instrument Panel Lamps Dimming Supply Voltage
B	PPL/WHT	1382	LED Dimming Signal
C	ORN	4040	Battery Positive Voltage
D	ORN	1732	Inadvertent Power Courtesy Lamps Supply Voltage
E	BRN/WHT	230	Instrument Panel Lamps Dimming Control
F	ORN	2240	Battery Positive Voltage

Body Control Module (BCM) - C2

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12110088 24-Way F Micro-Pack 100 Series (GRY)
Pin	Wire Color	Circuit No.	Function
A1	-	-	Not Used
A2	DK BLU	1796	Steering Wheel Radio Controls Supply Voltage
A3	TAN/BLK	254	Rear Door Unlock Relay Control
A4	PNK/WHT	1970	Headlamp Low Beam Relay Control
A5	DK GRN/ WHT	1317	Fog Lamp Relay Control
A6	GRY/BLK	255	Rear Door Lock Relay Control
A7	-	-	Not Used
A8	WHT	193	Rear Defog Relay Control
A9-A10	-	-	Not Used
A11	RED/WHT	812	12-Volt Reference
A12	ORN	1140	Battery Positive Voltage
B1	BLK/WHT	1969	Headlamp High Beam Relay Control
B2	WHT	1080	Park Lamp Relay Control
B3	DK BLU	1353	RAP Supply Voltage
B4	LT GRN/BLK	592	DRL Relay Control
B5	PPL	359	DRL Off Indicator Control
B5	YEL	1977	Rear Fog Lamp Relay Control (Export)
B6	BLK/WHT	1851	Ground
B7	BLK	1835	Security System Sensor Low Reference
B8	PNK	1348	Headlamp On Indicator Control
B9	BLK	28	Horn Relay Control
B10	WHT	1304	Liftgate Lock Relay Control (w/E52)
B11	GRY	1056	Dimmer Switch 5-Volt Reference Voltage
B12	LT GRN	1037	BCM Class 2 Serial Data

Body Control Module (BCM) - C3

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12160778 24-Way F Micro-Pack 100 Series (BRN)
Pin	Wire Color	Circuit No.	Function
A1-A3	-	-	Not Used
A4	WHT	278	Ambient Light Sensor Signal
A5	GRY	1548	Passenger Sunload Sensor Signal (w/ CJ2)
A6	YEL	1836	Security System Sensor Signal
A6	-	-	Not Used (Export)
A7	LT GRN	1011	Remote Radio Control Signal
A8	DK GRN	588	DRL Switch Signal
A9	ORN	192	Front Fog Lamp Switch Signal
A10	-	-	Not Used
A11	PPL	328	Interior Lamp Defeat Switch Signal
A12	-	-	Not Used
B1	YEL	710	Class 2 Serial Data
B2	GRY/BLK	308	Park Lamp Switch Signal
B3-B4	-	-	Not Used
B5	LT BLU/ BLK	590	Driver Sunload Sensor Signal (w/ CJ2)
B6	BLK/WHT	1851	Ground
B7	LT BLU	1059	Steering Wheel Position Sensor Signal (NYS, JL4)
B8	ORN/BLK	2090	Dimming Switch Signal
B9	LT GRN	11	Headlamp Dimmer Switch Signal
B10	LT BLU	187	Rear Fog Lamp Indicator Control (Export)
B10	-	-	Not Used
B11	LT BLU	553	Tow/Haul Switch Signal
B12	-	-	Not Used

Body Control Module (BCM) - C4

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12110206 24-Way F Micro-Pack 100 Series (LT BLU)
Pin	Wire Color	Circuit No.	Function
A1	LT GRN	80	Key In Ignition Switch Signal
A2	YEL	307	Headlamp Switch Flash to Pass Signal
A3	WHT	530	Off/Run/Crank Voltage
A4	PNK	39	Ignition 1 Voltage
A5	-	-	Not Used
A6	DK BLU/ WHT	149	Cargo Lamp Low Control (Avalanche/Escalade EXT)
A6	-	-	Not Used
A7	LT BLU	1134	Park Brake Switch Signal
A8	GRY	1524	Backup Lamp Signal
A9-A11	-	-	Not Used
A12	WHT	103	Headlamp Switch Headlamps On Signal
B1-B2	-	-	Not Used
B3	YEL	43	Accessory Voltage
B4-B5	-	-	Not Used
B6	GRY/BLK	2226	Instrument Panel Lamps Dimmer Switch Low Reference
B7	BLK	279	Ambient Light Sensor Low Reference
B8	-	-	Not Used
B9	DK BLU/WHT	1495	Courtesy Lamps On Signal
B10-B12	-	-	Not Used

Body Control Module (BCM) - C5

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12177195 6-Way F Metri-Pack 150 Series (BLK)
Pin	Wire Color	Circuit No.	Function
A-C	-	-	Not Used
D	ORN	2140	Battery Positive Voltage
E	GRY/BLK	690	Courtesy Lamp Control
F	LT GRN	24	Backup Lamp Supply Voltage

Body Control Module (BCM) - C6

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12191375 16-Way F Micro-Pack 100 Series (PPL)
Pin	Wire Color	Circuit No.	Function
A1	PNK/BLK	1303	Liftgate Ajar Switch Signal (ZW9)
A2	LT GRN/ BLK	748	Right Rear Door Ajar Switch Signal
A3	LT BLU/ BLK	747	Left Rear Door Ajar Switch Signal
A4	-	-	Not Used
A5	LT BLU	2265	Power Window Lockout Left Rear Control
A6	LT GRN	2266	Power Window Lockout Right Rear Control
A7	GRY/BLK	1186	Power Window Relay Right Rear Up Control
A8	DK GRN	1188	Power Window Relay Right Rear Down Control
B1	LT BLU	2380	Rear Parking Assist Chime Signal
B2-B6	-	-	Not Used
B7	YEL	1187	Power Window Relay Left Rear Down Control
B8	WHT	1185	Power Window Relay Left Rear Up Control