K71 Transmission Control Module X1
WARNING: This page is about a different car, the 2018 Buick Envision. However, it is still accessible from the selected car via links, so may be relevant.
 Courtesy of GENERAL MOTORS COMPANY
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Connector Part Information
- Harness Type: Engine
- OEM Connector: 12644157
- Service Connector: Not Available
- Description: 18-Way F 0.64, 6.3 Series (BK)
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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 |
Not Required |
Not Available |
Not Available |
Not Required |
Not Required |
Not Required |
Not Required |
| Pin |
Size |
Color |
Circuit |
Function |
Terminal Type ID |
Option |
| 1 |
1.0 |
RD/GN |
2173 |
12V Regulated Supply Voltage 2 |
I |
- |
| 2 |
1.0 |
BK/WH |
151 |
Signal Ground |
I |
- |
| 3 - 5 |
- |
- |
- |
Not Occupied |
- |
- |
| 6 |
0.5 |
BU |
2500 |
High Speed GMLAN Serial Data (+) 1 |
I |
- |
| 7 |
0.5 |
BU |
2500 |
High Speed GMLAN Serial Data (+) 1 |
I |
- |
| 8 |
0.5 |
WH |
2501 |
High Speed GMLAN Serial Data (-) 1 |
I |
- |
| 9 - 11 |
- |
- |
- |
Not Occupied |
- |
- |
| 12 |
0.5 |
VT/GN |
439 |
Run/Crank Ignition 1 Voltage |
I |
- |
| 13 |
0.5 |
VT/YE |
5985 |
Accessory Wakeup Serial Data |
I |
- |
| 14 |
0.5 |
WH |
2501 |
High Speed GMLAN Serial Data (-) 1 |
I |
- |
| 15 - 18 |
- |
- |
- |
Not Occupied |
- |
- |