2004 Cadillac SevilleFACTORY OEM SERVICE PROCEDURE

Rear Object Sensor Control Module Connector End View

Rear Object Sensor Control Module Connector End View

GM599191Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12124957
  • 26-Way F (BLK)
Pin Wire Color Circuit No. Function
1 YEL 2375 LR Corner Object Sensor Signal
2 ORN 2376 LR Middle Object Sensor Signal
3 DK GRN 2377 RR Middle Object Sensor Signal
4 RED 2378 RR Corner Object Sensor Signal
5 DK BLU 2374 Object Sensor Supply Voltage
6 GRY 2379 Object Sensor Low Reference
7 - 11 - - Not Used
12 BLK 1050 Ground
13 PNK 1039 Ignition 1 Voltage
14 - - Not Used
15 LT GRN 24 Backup Lamp Supply Voltage
16 LT GRN 2525 Rear Parking Assist Diagnostic Input
17 - - Not Used
18 DK GRN/
WHT
817 Vehicle Speed Signal
19 - 21 - - Not Used
22 LT BLU 2380 Rear Parking Assist Chime Signal
23 WHT 2370 Telltale Assembly Supply Voltage
24 GRY 2373 Red Indicator Control
25 DK BLU 2372 Center Amber Indicator Control
26 ORN 2371 Left Amber Indicator Control
Factory Service Tools

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When to See a Mechanic

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

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.

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