2018 Buick Regal BaseFACTORY OEM SERVICE PROCEDURE

K9 Body Control Module X1

WARNING: This page is about a different car, the 2020 Buick Regal TourX, 2020 Buick Regal, 2019 Buick Regal TourX, and 2019 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.
GM2282907Courtesy of GENERAL MOTORS COMPANY
Connector Part Information
  • Harness Type: Instrument Panel
  • OEM Connector: 13943345
  • Service Connector: 13582966
  • Description: 26-Way F 0.64, 2.8 Series (NA)
Terminal Part Information

Terminal Type ID Terminated Lead Diagnostic Test Probe Terminal Removal Tool Service Terminal Tray Name Core Crimp Insulation Crimp
I 13582297 J-35616-64B (LT BU) J-38125-215A Not Available Not Available Not Available Not Available
II 13582298 J-35616-64B (LT BU) J-38125-215A Not Available Not Available Not Available Not Available
III 13587507 J-35616-35 (VT) J-38125-12A SNAC-A061T-M2.8 Delphi 20 C A
IV 13587507 J-35616-35 (VT) J-38125-12A SNAC-A061T-M2.8 Delphi 20 E A
Pin Size Color Circuit Function Terminal Type ID Option
1 0.75 BK 1850 Ground 18 IV -
2 0.75 RD/BU 2540 Secondary Fused Battery Positive Voltage 25 IV -
3 1 RD/GY 2140 Secondary Fused Battery Positive Voltage 21 III -
4 0.5 RD/BN 2240 Secondary Fused Battery Positive Voltage 22 IV -
5 0.5 WH 6816 Indicator Dimming Control I -
6 0.35 BN/WH 4046 Instrument Panel Compartment Door Unlatch Relay Control I -
7 0.35 BK/YE 5005 Instrument Panel Lamp Dimmer Switch Low Reference I -
8 0.35 BN/BK 5720 Ignition Mode Switch Accessory LED Signal I -
9 - - - Not Occupied - -
10 0.5 BU/VT 1134 Park Brake Switch Signal I -
11 0.35 GN/BN 306 Headlamp Switch Off Signal I -
12 0.35 BU/GY 187 Rear Fog Lamp Switch Signal I T79
13 0.35 BU/RD 1688 5 Volt Reference 7 I -
14 0.35 GY/GN 328 Dome/Reading Lamp Disable Switch Signal I -
15 0.75
0.35		 BU/GN
BU/GY		 6841
192		 Rear Lamp Flasher Signal
Front Fog Lamp Switch Signal		 II
I		 6J7
T3U
16 0.35 WH/VT 103 Headlamp Switch On Signal I -
17 - - - Not Occupied - -
18 0.35 BU/VT 5904 Steering Column Lock Status Signal I -
19 0.35 BK/GN 552 Sensor Low Reference 5 I -
20 0.35 BU/BK 5719 Ignition Mode Switch Start LED Signal I -
21 0.35 GY 728 Security Indicator Control I -
22 0.35 GN/GY 13 Headlamp Switch Park Lamp Signal I -
23 0.5 VT/GN 7558 Front Footwell Accent Lighting Control I -
24 0.5 WH 2501 High Speed GMLAN Serial Data [-] 1 I -
25 0.5 BU 2500 High Speed GMLAN Serial Data [+] 1 I -
26 0.35 BU/WH 3275 Remote Control Door Lock Receiver Receive Signal I -
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:

  • • 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.

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