WARNING: This page is about a different car, the 2007 Chevrolet Malibu. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Body Control Module (BCM) - C1 Connector End Views

Courtesy of GENERAL MOTORS CORP.

Body Control Module (BCM) - C1 Connector Parts Information

Connector Part Information

OEM: 15393122
Service: 88987847
Description: 72-Way F Micro-Pack 64 Series (GY)

Terminal Part Information

Terminal/Tray: 15359541/4
Core/Insulation Crimp: M/M
Release Tool/Test Probe: 15381651-2/J-35616-64B (L-BU)

Body Control Module (BCM) - C1 Connector Terminal Identification

Pin	Wire Color	Circuit No.	Function
1	-	-	Not Used
2	L-GN/BK	592	DRL Relay Control
3	D-GN/WH	636	Ambient Air Temperature Sensor Signal
4	TN	305	Trunk Key Switch Signal (Sedan)
4	WH/BK	1221	Lift Gate Release Switch Signal (Extended Sedan)
5	-	-	Not Used
6	YE	61	Ground
7-11	-	-	Not Used
12	BK	1050	Ground
13	TN	28	Horn Relay Control
14	-	-	Not Used
15	L-BU	2182	Reverse Lamp Relay Control
16	L-BU	1344	Trunk Release Relay Control
17	-	-	Not Used
18	OG/BK	744	Rear Compartment Lid Ajar Switch Signal
19	YE	317	Fog Lamp Relay Control (T96)
20-21	-	-	Not Used
22	D-GN	113	Windshield Wiper Switch Signal 2
23	-	-	Not Used
24	WH	17	Stop Lamp Supply Voltage
25	-	-	Not Used
26	YE	196	Windshield Wiper Motor Park Switch Signal
27-28	-	-	Not Used
29	TN/WH	1969	Headlamp High Beam Relay Control
30-32	-	-	Not Used
33	BN/WH	1571	Traction Control Switch Signal (NW7/NW9)
34	-	-	Not Used
35	L-GN	262	Driver Door Key Switch Signal
36	-	-	Not Used
37	D-GN	5060	Low Speed GMLAN Serial Data
38	D-BU	5364	Left DRL/Turn Supply Voltage
39	-	-	Not Used
40	D-GN/WH	1135	A/T Shift Lock Control Solenoid Supply Voltage
41	-	-	Not Used
42	WH	17	Stop Lamp Supply Voltage
43-46	-	-	Not Used
47	L-GN	1748	Coolant Level Switch Signal
48-50	-	-	Not Used
51	GY/BK	745	Left Front Door Ajar Switch Signal
52	-	-	Not Used
53	L-GN/BK	748	Passenger Door Ajar Switch Signal
54	L-BU/BK	747	Passenger Door Ajar Switch Signal
55	D-GN	5060	Low Speed GMLAN Serial Data
56	D-GN	5365	Right DRL/Turn Supply Voltage
57	WH	193	Rear Defog Relay Control
58	YE	5199	Run/Crank Relay Coil Control
59	L-BU	1134	Park Brake Switch Signal
60	PK	849	Brake Fluid Level Sensor Signal
61	D-GN	5525	Tap Up/Tap Down Enable Signal
62	TN/WH	99	Hazard Indicator Supply Voltage
63-64	-	-	Not Used
65	WH	1080	Park Lamp Relay Control
66	WH	682	Door Lock Lock/Unlock Signal
67	WH	682	Door Lock Lock/Unlock Signal
68	-	-	Not Used
69	PK/BK	109	Hood Ajar Switch Signal (AP3/AP8)
70	PU	5531	Hood Ajar Switch Signal (AP3/AP8)
71	BN/WH	2091	Trunk Release Switch Supply Voltage
72	TN/WH	746	Passenger Door Ajar Switch Signal

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.

• Brakes feel soft, pull hard to one side, or make grinding noises.

• The engine overheats, stalls repeatedly, or misfires under load.

• You are missing required tools, torque specs, or safe lifting equipment.

• You are not confident in the next step or safety outcome.

Safety Warning

Body Control Module (BCM) - C1 Connector

Use the Manual With the Right Hardware

When to See a Mechanic