Computer/Integrating Systems Connector End Views

Body Control Module (BCM) C1

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12110088 24-Way F Micro-Pack 100 Series (L-GY)
Pin	Wire Color	Circuit No.	Function
A1	-	-	Not Used
A2	WH	2282	Headlamp Washer Relay Control (CE4)
A3	OG	1140	Battery Positive Voltage
A4	BK/WH	1969	Headlamp High Beam Relay Control
A5	PK/WH	1970	Headlamp Low Beam Relay Control
A6-A11	-	-	Not Used
A12	WH	278	Ambient Light Sensor Signal
B1	L-GN	1037	Class 2 Serial Data
B2	BK	279	Ambient Light Sensor Low Reference
B3	L-GN	2270	Rear Window Washer Relay Control (CD6)
B4	GY/BK	2226	Instrument Panel Lamps Dimmer Switch Low Reference
B5	GY	705	5-Volt Reference
B6	WH	2283	12-Volt Reference
B7	OG/BK	2090	Courtesy Lamps Supply Voltage
B8	L-GN	1011	Remote Radio Control Signal
B9	GY	391	Rear Window Wiper Switch Signal (CD6)
B10	YE	1836	Security System Sensor Signal
B11	GY	2521	Right Sunload Sensor Signal (CJ2)
B12	L-BU/BK	2519	Left Sunload Sensor Signal (CJ2)

Body Control Module (BCM) C2

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12110112 32-Way F Micro-Pack 100 Series (TN)
Pin	Wire Color	Circuit No.	Function
E1-E2	-	-	Not Used
E3	L-GN	80	Key In Ignition Switch Signal
E4	YE	307	Headlamp Switch Flash to Pass Signal
E5	GY/BK	308	Park Lamp Switch On Signal
E6-E9	-	-	Not Used
E10	D-GN	588	DRL Switch Signal (TT6)
E11	D-GN/WH	1317	Fog Lamp Relay and Indicator Control (T96)
E12	BK	28	Horn Relay Control
E13	-	-	Not Used
E14-E16	-	-	Not Used
F1-F2	-	-	Not Used
F3	D-GN	113	Windshield Wiper Switch Signal 2
F4	D-BU/WH	1495	Courtesy Lamps On Signal
F5	OG	2268	Windshield Washer Relay Control (CE4)
F6	OG	192	Front Fog Lamps Switch Signal (T96)
F7	L-BU	187	Rear Fog Lamps Switch Signal (T79)
F8	L-GN	5462	DRL Defeat Switch Signal
F9	WH	103	Headlamp Switch Headlamps On Signal
F10	L-GN	11	Headlamp High Beam Supply Voltage
F11	PU	328	Interior Lamp Defeat Switch Signal
F12-F16	-	-	Not Used

Body Control Module (BCM) C3

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		15354796 40-Way Flat Wire
Pin	Wire Color	Circuit No.	Function
A1	-	2140	Battery Positive Voltage
A2	-	2140	Battery Positive Voltage
A3	-	748	Right Rear Door Ajar Switch Signal
A4	-	1134	Park Brake Switch Signal
A5	-	195	Door Lock Control
A6	-	2265	Power Window Lockout Left Rear Control
A7	-	-	Not Used
A8	-	747	Left Rear Door Ajar Switch Signal
A9- A10	-	-	Not Used
A11	-	1350	Ground
A12	-	1353	RAP Supply Voltage
A13	-	194	Door Unlock Control
A14	-	1080	Park Lamp Relay Control
A15- A17	-	-	Not Used
A18	-	1390	Ignition 0 Voltage
A19	-	639	Ignition 1 Voltage (5.3L)
A19	-	439	Ignition 1 Voltage (4.2L)
A20	-	300	Ignition 3 Voltage
B1	-	230	Instrument Panel Lamps Dimming Control
B2	-	230	Instrument Panel Lamps Dimming Control
B3	-	690	Courtesy Lamp Supply Voltage
B4	-	2240	Battery Positive Voltage
B5	-	1186	Power Window Switch Right Rear Up Signal
B6	-	2266	Power Window Lockout Right Rear Control
B7	-	1188	Power Window Switch Right Rear Down Signal
B8	-	1185	Power Window Switch Left Rear Up Signal
B9	-	1187	Power Window Switch Left Rear Down Signal
B10	-	-	Not Used
B11	-	1350	Ground
B12	-	24	Backup Lamp Supply Voltage
B13	-	4440	Battery Positive Voltage
B14	-	-	Not Used
B15	-	4	Accessory Voltage
B16	-	-	Not Used
B17	-	4040	Battery Positive Voltage
B18	-	1732	Courtesy Lamps Supply Voltage
B19-B20	-	-	Not Used

Data Link Connector (DLC)

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12110250 16-Way F Metri-Pack 150 Series (BK)
Pin	Wire Color	Circuit No.	Function
1	-	-	Not Used
2	PU	1132	DLC Class 2 Serial Data
3	-	-	Not Used
4	BK	2250	Ground
5	BK/WH	751	Ground
6	D-BU	6105	High Speed GMLAN Serial Data (+)
7-13	-	-	Not Used
14	L-BU	6106	High Speed GMLAN Serial Data (-)
15	-	-	Not Used
16	OG	640	Battery Positive Voltage