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Fig 1: Auxiliary Body Control Module (XBCM) C1 (Export) Connector End View

Courtesy of GENERAL MOTORS CORP.

Auxiliary Body Control Module (XBCM) C1 (Export) Connector Parts Information

Connector Part Information

OEM: 12110088
Service: 15306210
Description: 24-Way F Micro-Pack 100 Series (GY)

Terminal Part Information

Terminal/Tray: 12146447/3
Core/Insulation Crimp: E/C
Release Tool/Test Probe: 12031876-1/J-35616-6 (BN)

Auxiliary Body Control Module (XBCM) C1 (Export) Connector Terminal Identification

Pin	Wire Color	Circuit No.	Function
A1	BK	1050	Ground
A2	RD/WH	2640	Battery Positive Voltage
A3	D-GN	5060	Low Speed GMLAN Serial Data
A4-A6	-	-	Not Used
A7	BK/WH	1851	Ground
A8	L-BU	187	Rear Fog Lamp Switch Signal
A9	-	-	Not Used
A10	PK	7141	Trailer Connected Signal Trailer
A11	-	-	Not Used
A12	YE	1618	Trailer Left Rear Turn/Stop Lamp Supply Voltage
B1	L-BU	1320	CHMSL Supply Voltage
B2	PK	239	Ignition 1 Voltage
B3-B10	-	-	Not Used
B11	D-GN	1619	Trailer Right Rear Turn/Stop Lamp Supply Voltage
B12	-	-	Not Used

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

Auxiliary Body Control Module (XBCM) C1 (Export)

Use the Manual With the Right Hardware

When to See a Mechanic

Rather have a pro handle this?