Rear Object Sensor Control Module

2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6SECTION Rear Object Sensor Control Module
WARNING: This page is about a different car, the 2010 Cadillac STS. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Rear Object Sensor Control Module
GM599191Courtesy of GENERAL MOTORS CORP.
Rear Object Sensor Control Module

Pin Wire Circuit Function
1 0.35 YE 2375 Left Rear Corner Object Sensor Signal
2 0.35 OG 2376 Left Rear Middle Object Sensor Signal
3 0.35 D-GN 2377 Right Rear Middle Object Sensor Signal
4 0.35 PU 2378 Right Rear Corner Object Sensor Signal
5 0.35 D-BU 2374 Object Sensor Supply Voltage
6 0.35 GY 2379 Low Reference
7-11 - - Not Used
12 0.35 BK 850 Ground
13 0.35 PK 1339 Run/Crank Ignition 1 Voltage
14 - - Not Used
15 0.35 L-GN 24 Back-Up Lamp Feed
16 0.5 L-GN 2525 Rear Parking Assist Module Diagnostic Signal
17 - - Not Used
18 0.35 BN 818 Vehicle Speed Signal
19-21 - - Not Used
22 0.5 L-BU 2380 Rear Parking Assist Chime Signal
23 0.35 WH 2370 Rear Parking Display Supply Voltage
24 0.35 GY 2373 Rear Parking Assist Red Indicator Control
25 0.35 D-BU 2372 Center Amber Indicator Control
26 0.35 OG 2371 Left Amber Indicator Control
Connector Part Information 
  • Harness: Body
  • OEM: 927690-1
  • Service: 88987946
  • Description: 26-Way F 0.64 Modular Series (BK w/ BU Cover)
Terminal Part Information 
  • Terminal/Tray: 104479-9/25
  • Core/Insulation Crimp: Pins 1, 2, 3, 4, 5, 6, 12, 13, 15, 18, 23, 24, 25, 26 - H/H
  • Core/Insulation Crimp: Pins 16, 22 - J/J
  • Release Tool/Test Probe: J-38125-24/J-35616-64B (L-BU)
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

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.