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.
T19 Power Supply Transformer
2018 Buick Regal BaseSECTION T19 Power Supply Transformer
Connector Part Information
|
Terminal Part Information
| Terminal Type ID | Terminated Lead | Diagnostic Test Probe | Terminal Removal Tool | Service Terminal | Tray Name | Core Crimp | Insulation Crimp |
|---|---|---|---|---|---|---|---|
| I | 13327122 | J-35616-64B (LT BU) | J-38125-215A | Not Available | Not Available | Not Available | Not Available |
| II | 13327123 | J-35616-64B (LT BU) | J-38125-215A | Not Available | Not Available | Not Available | Not Available |
| III | 13579921 | J-35616-40 (BU) | J-38125-556 | 1241406-1 | Lear 17 | F | 1 |
| Pin | Size | Color | Circuit | Function | Terminal Type ID | Option |
|---|---|---|---|---|---|---|
| 1 - 3 | - | - | - | Not Occupied | - | - |
| 4 | 0.35 | VT/YE | 5985 | Accessory Wakeup Serial Data | II | - |
| 5 | 0.35 | YE/BK | 625 | Starter Enable Relay Control | II | - |
| 6 | 0.35 | VT/GY | 139 | Run/Crank Ignition 1 Voltage | II | - |
| 7 | 4 | BK | 2050 | Ground | III | - |
| 8 | 4 | RD/BU | 1542 | Battery Positive Voltage | III | - |
| 9 | 4 | RD/GN | 2173 | 12V Regulated Supply Voltage 2 | III | - |
| 10 | 4 | RD/YE | 2172 | 12V Regulated Supply Voltage 1 | III | - |
| 11 | 4 | RD/GY | 1342 | Battery Positive Voltage | III | - |
| 12 | 4 | BK | 2050 | Ground | III | - |
| 13 | 0.35 | WH | 2501 | High Speed GMLAN Serial Data (-) 1 | II | F46-F45-UGN |
| 14 | 0.5 | WH | 7494 | High Speed GMLAN Serial Data (-)3 | I | - |
| 15 | 0.5 | BU/BK | 7493 | High Speed GMLAN Serial Data (+)3 | I | - |
| 16 | 0.35 | BU | 2500 | High Speed GMLAN Serial Data (+) 1 | II | F46-F45-UGN |
| 17 | 0.5 0.5 |
WH WH |
7494 7494 |
High Speed GMLAN Serial Data (-)3 High Speed GMLAN Serial Data (-)3 |
I II |
KL9+MM1 LGX |
| 18 | 0.5 | BU/BK | 7493 | High Speed GMLAN Serial Data (+)3 | I | - |
RENDER: 1.0x
NO RELATED
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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.