Fig 1: Rear Object Sensor Control Module Connector End View

Courtesy of GENERAL MOTORS CORP.

Connector Part Information

Terminal Part Information

Connector Terminal Identification

Pin	Wire Color	Circuit No.	Function
1	YE	2375	LR Corner Object Sensor Signal
2	OG	2376	LR Middle Object Sensor Signal
3	D-GN	2377	Right Rear Middle Object Sensor Signal
4	PU	2378	RR Corner Object Sensor Signal
5	D-BU	2374	Object Sensor Supply Voltage
6	GY	2379	Object Sensor Low Reference
7-11	-	-	Not Used
12	BK	850	Ground
13	PK	739	Ignition 1 Voltage
14	GY	2616	Rear Parking Assist Disable Switch Signal
15	L-GN	24	Backup Lamp Supply Voltage
16	L-GN	2525	Rear Parking Assist Diagnostic Input
17	-	-	Not Used
18	D-GN	389	Vehicle Speed Signal
19-21	-	-	Not Used
22	L-BU	2380	Rear Parking Assist Chime Signal
23	WH	2370	Telltale Assembly Supply Voltage
24	GY	2373	Red Indicator Control
25	D-BU	2372	Center Amber Indicator Control
26	OG	2371	Left Amber Indicator Control

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

Rear Object Sensor Control Module Connector End View