Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2018 Buick Regal BaseFACTORY OEM SERVICE PROCEDURE
K9 Body Control Module X2
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.
Connector Part Information
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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 | 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 | 0.5 | RD/WH | 2740 | Secondary Fused Battery Positive Voltage 27 | II | - |
| 2 | 0.75 | BK | 1850 | Ground 18 | II | - |
| 3 | 0.5 | RD/BN | 2940 | Secondary Fused Battery Positive Voltage 29 | II | - |
| 4 | 0.75 | RD/VT | 4040 | Secondary Fused Battery Positive Voltage 40 | II | - |
| 5 | - | - | - | Not Occupied | - | - |
| 6 | 0.35 | GY | 5697 | Child Security Lock Indicator Control | I | - |
| 7 | 0.35 | WH/GN | 526 | Stop Lamp Switch Signal 2 | I | - |
| 8 | 0.5 | YE | 6817 | LED Backlight Dimming Control 1 | I | - |
| 9 | 0.35 | YE/GY | 44 | Instrument Panel Lamp Dimmer Switch Signal | I | - |
| 10 | 0.35 | WH/BU | 278 | Ambient Light Sensor Signal | I | - |
| 11 | - | - | - | Not Occupied | - | - |
| 12 | 0.35 | BN/BU | 391 | Rear Window Wiper Switch Signal | I | - |
| 13 | 0.35 | GY/RD | 598 | HVAC Air Inlet 5 Volt Reference | I | - |
| 14 | 0.35 | BU/VT | 1788 | Traction Control Switch Signal 1 | I | - |
| 15 | 0.35 | BN/WH | 781 | Driver Door Lock Switch Unlock Signal | I | - |
| 16 | 0.35 | GY | 3273 | Remote Control Door Lock Receiver Low Reference | I | - |
| 17 | 0.35 | BU/GN | 5723 | Ignition Mode Switch Mode Voltage | I | - |
| 18 | 0.35 | GN/WH | 4047 | Instrument Panel Compartment Door Unlatch Signal | I | - |
| 19 | 0.35 | BN/YE | 780 | Driver Door Lock Switch Lock Signal | I | - |
| 20 | 0.5 | WH/BU | 3691 | Trailer Brake Apply Signal | I | - |
| 21 | 0.5 | GN/GY | 6135 | Body Control Module LIN Bus 4 | I | - |
| 22 - 24 | - | - | - | Not Occupied | - | - |
| 25 | 0.35 | GY/WH | 3272 | Remote Control Door Lock Receiver Control | I | - |
| 26 | 0.35 | GN/WH | 111 | Hazard Warning Switch Signal | I | - |
| 27 | 0.35 | YE/GN | 3274 | Remote Control Door Lock Receiver Transmit 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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