X175 Engine Wiring Harness to Automatic Transmission Wiring Harness (M5U)
WARNING: This page is about a different car, the 2023 GMC Savana 3500, 2023 GMC Savana 2500, 2023 Chevrolet Express 3500, and 2023 Chevrolet Express 2500. However, it is still accessible from the selected car via links, so may be relevant.
 Courtesy of GENERAL MOTORS COMPANY
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 Courtesy of GENERAL MOTORS COMPANY
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Connector Part Information
- Harness Type: Engine Wiring Harness
- OEM Connector: 15504573
- Service Connector: 19329922
- Description: 36-Way F 1.2 MCON-CB, 2.8 MCP Series, Sealed (BK)
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Connector Part Information
- Harness Type: Automatic Transmission Wiring Harness
- OEM Connector: 2321030-5
- Service Connector: Service by Harness - See Part Catalog
- Description: 36-Way M 1.2 MCON, 2.8 MPQ Series, Sealed (BK)
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Terminal Part Information
| Terminal Type ID |
Terminated Lead |
Diagnostic Test Probe |
Terminal Removal Tool |
| I |
13575368 |
J-35616-35 (VT) |
J-38125-36 |
| II |
19300445 |
J-35616-12 (BU) |
J-38125-11A |
| III |
Not required |
No Tool Required |
No Tool Required |
| Pin |
Size |
Color |
Circuit |
Terminal Type ID |
Option |
Function |
Pin |
Size |
Color |
Circuit |
Terminal Type ID |
Option |
| 1 |
0.5 |
GN/WH |
6380 |
II |
- |
Torque Converter Clutch Enable Solenoid Valve A Control |
1 |
0.5 |
GN/WH |
6380 |
III |
- |
| 2 |
- |
- |
- |
- |
- |
Not Occupied |
2 |
- |
- |
- |
- |
- |
| 3 |
0.5 |
VT/WH |
422 |
II |
- |
Torque Converter Clutch Solenoid Valve Control |
3 |
0.5 |
VT/WH |
422 |
III |
M5U |
| 4 |
0.5 |
GN/WH |
1530 |
II |
- |
Transmission Line Pressure Control Solenoid Valve Control |
4 |
- |
- |
- |
- |
- |
| 5 |
0.5 |
BN |
6400 |
II |
- |
Clutch Solenoid Valve A Control |
5 |
0.5 |
BN |
6400 |
III |
- |
| 6 |
0.5 |
BU |
6401 |
II |
- |
Clutch Solenoid Valve B Control |
6 |
0.5 |
BU |
6401 |
III |
- |
| 7 |
0.5 |
YE/BN |
6210 |
II |
- |
Torque Converter Clutch Enable Solenoid Valve B Control |
7 |
0.5 |
YE/BN |
6210 |
III |
- |
| 8 - 9 |
- |
- |
- |
- |
- |
Not Occupied |
8 - 9 |
- |
- |
- |
- |
- |
| 10 |
0.5 |
GY |
6402 |
II |
- |
Clutch Solenoid Valve C Control |
10 |
0.5 |
GY |
6402 |
III |
- |
| 11 |
0.5 |
BK/BN |
586 |
II |
- |
Transmission Fluid Temperature Sensor Low Reference |
11 |
0.5 |
OG/BK |
586 |
III |
- |
| 12 |
0.5 |
BN/WH |
585 |
II |
- |
Transmission Fluid Temperature Sensor Signal |
12 |
0.5 |
BN/WH |
585 |
III |
- |
| 13 |
0.5 |
WH |
4508 |
II |
- |
Transmission Clutch G Control |
13 |
0.5 |
WH |
4508 |
III |
- |
| 14 |
0.5 |
WH/BU |
4507 |
II |
- |
Transmission Clutch H Control |
14 |
0.5 |
WH/BU |
4507 |
III |
- |
| 15 - 17 |
- |
- |
- |
- |
- |
Not Occupied |
15 - 17 |
- |
- |
- |
- |
- |
| 18 |
0.5 |
GN/GY |
6387 |
I |
- |
Transmission High Side Driver 1 Control |
18 |
0.5 |
GN/GY |
6387 |
III |
- |
| 19 |
0.75 |
GY/BN |
6388 |
I |
- |
Transmission High Side Driver 2 Control |
19 |
0.75 |
GY/BN |
6388 |
III |
- |
| 20 |
- |
- |
- |
- |
- |
Not Occupied |
20 |
- |
- |
- |
- |
- |
| 21 |
0.5 |
GN/YE |
3337 |
II |
- |
Transmission Internal Mode Switch Mode Control Y |
21 |
0.5 |
GN/YE |
3337 |
III |
- |
| 22 |
0.5 |
BU/WH |
3338 |
II |
- |
Transmission Internal Mode Switch Mode Control X |
22 |
0.5 |
BU/WH |
3338 |
III |
- |
| 23 |
- |
- |
- |
- |
- |
Transmission Range Switch Signal P |
23 |
- |
- |
4168 |
III |
- |
| 24 |
0.5 |
GY/BU |
6358 |
II |
- |
Output Speed Signal |
24 |
0.5 |
GY/BU |
6358 |
III |
- |
| 25 |
0.5 |
YE/GN |
4170 |
II |
- |
Transmission Output Shaft Speed Sensor Circuit 9V Reference |
25 |
0.5 |
YE/GN |
4170 |
III |
- |
| 26 |
0.5 |
GN/YE |
6353 |
II |
- |
Input Speed Signal |
26 |
0.5 |
GN/YE |
6353 |
III |
- |
| 27 |
0.5 |
YE/BU |
4171 |
II |
- |
Transmission Input Shaft Speed Sensor Circuit 9V Reference |
27 |
- |
WH/RD |
4171 |
III |
- |
| 28 |
- |
- |
- |
- |
- |
Transmission Range Switch Signal B |
28 |
- |
- |
5982 |
III |
- |
| 29 |
0.5 |
WH/RD |
480 |
II |
- |
Engine Control Vehicle Sensors 5 Volt Reference 1 |
29 |
0.5 |
WH/RD |
596 |
III |
- |
| 30 |
0.5 |
BK/GY |
626 |
II |
- |
Engine Control Vehicle Sensors Low Reference 1 |
30 |
0.5 |
BK/GY |
626 |
III |
LV1+M5U |
| 31 |
- |
- |
- |
- |
- |
Transmission Output Shaft Speed Sensor Circuit 9V Reference |
31 |
- |
- |
4170 |
III |
- |
| 32 |
0.5 |
GN/VT |
4510 |
II |
- |
Transmission Intermediate Speed Signal |
32 |
0.5 |
GN/VT |
4510 |
III |
- |
| 33 |
- |
- |
- |
- |
- |
Not Occupied |
33 |
- |
- |
- |
- |
- |
| 34 |
- |
- |
- |
- |
- |
Transmission Range Switch Signal S |
34 |
- |
- |
4169 |
III |
- |
| 35 |
- |
- |
- |
- |
- |
Transmission Park/Neutral Signal 1 |
35 |
- |
- |
1786 |
III |
- |
| 36 |
- |
- |
- |
- |
- |
Not Occupied |
36 |
- |
- |
- |
- |
- |