K71 Transmission Control Module X2 (MRC)
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.
 Courtesy of GENERAL MOTORS COMPANY
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Connector Part Information
- Harness Type: Transmission
- OEM Connector: 99371-00528
- Service Connector: Service by Harness - See Part Catalog
- Description: 33-Way M 0.64 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 |
No Tool Required |
Not Required |
Not Required |
Not Required |
Not Required |
| Pin |
Size |
Color |
Circuit |
Function |
Terminal Type ID |
Option |
| 1 |
0.5 |
VT |
4183 |
Torque Converter Clutch Pressure Solenoid Valve High Control |
I |
- |
| 2 |
0.5 |
BN |
4182 |
Torque Converter Clutch Pressure Solenoid Valve Low Control |
I |
- |
| 3 |
0.5 |
BU |
4190 |
Transmission Pressure Control Solenoid Valve C [+] Control |
I |
- |
| 4 |
0.5 |
YE |
4191 |
Transmission Pressure Control Solenoid Valve C [-] Control |
I |
- |
| 5 |
0.5 |
WH |
6404 |
Clutch Solenoid Valve E Control |
I |
- |
| 6 |
0.5 |
GN |
1530 |
Transmission Line Pressure Control Solenoid Valve Control |
I |
- |
| 7 |
0.5 |
GY |
5503 |
Transmission Line Pressure Control Solenoid Valve Low Reference |
I |
- |
| 8 |
0.5 |
RD |
4193 |
Transmission Pressure Control Solenoid Valve B [+] Control |
I |
- |
| 9 |
0.5 |
GN |
4192 |
Transmission Pressure Control Solenoid Valve B [-] Control |
I |
- |
| 10 |
0.5 |
OG |
585 |
Transmission Fluid Temperature Sensor Signal |
I |
- |
| 11 |
0.5 |
GY |
4172 |
Transmission Speed Output High Signal |
I |
- |
| 12 |
0.5 |
BK |
1798 |
Low Reference |
I |
- |
| 13 |
0.5 |
YE |
4194 |
Transmission Pressure Control Solenoid Valve A [+] Control 2 |
I |
- |
| 14 |
0.5 |
VT |
4195 |
Transmission Pressure Control Solenoid Valve A [-] Control |
I |
- |
| 15 - 16 |
- |
- |
- |
Not Occupied |
- |
- |
| 17 |
0.5 |
RD |
4173 |
Transmission Speed Input Low Signal |
I |
- |
| 18 |
0.5 |
WH |
4174 |
Transmission Speed Input High Signal |
I |
- |
| 19 |
0.5 |
OG |
586 |
Transmission Fluid Temperature Sensor Low Reference |
I |
- |
| 20 |
0.5 |
BU |
6356 |
Output Speed [-] Signal |
I |
- |
| 21 |
0.5 |
YE |
4189 |
Transmission Pressure Control Solenoid Valve D [+] Control |
I |
- |
| 22 |
0.5 |
BN |
4188 |
Transmission Pressure Control Solenoid Valve D [-] Control |
I |
- |
| 23 |
0.5 |
GN |
1222 |
Shift Solenoid Valve 1 Control |
I |
- |
| 24 - 27 |
- |
- |
- |
Not Occupied |
- |
- |
| 28 |
0.5 |
WH |
1223 |
Shift Solenoid Valve 2 Control |
I |
- |
| 29 - 33 |
- |
- |
- |
Not Occupied |
- |
- |