| Connector 1: | C175 Engine Chassis Harness to Internal Transmission Harness (Allison® LCT) | 
| Connector 2: | C175 Engine Chassis Harness to Internal Transmission Harness (Allison® MD) | 
Connector Part Information
  | 
Terminal Part Information
  | 
Pin  | Wire Color  | Circuit No.  | Function  | 
|---|---|---|---|
1  | PU  | 898  | Shift Solenoid 1 Valve Control  | 
2  | YE/BK  | 2879  | Shift Solenoid 2 Valve Control  | 
3  | OG/WH  | 2527  | Shift Solenoid 3 Valve Control  | 
4  | PK  | 1224  | Transmission Fluid Pressure Switch Signal 1  | 
5  | --  | --  | Not Used  | 
6  | RD  | 1226  | Transmission Fluid Pressure Switch Signal 3  | 
7  | D-BU  | 1225  | Transmission Fluid Pressure Switch Signal 2  | 
8  | YE/BK  | 1227  | TFT Sensor Signal  | 
9  | BK  | 407  | Low Reference  | 
10  | WH  | 1994  | TCC PWM Solenoid Valve Control  | 
11  | L-GN/BK  | 2529  | Transmission Fluid Pressure Switch Signal 4 (Reverse)  | 
12-13  | --  | --  | Not Used  | 
14  | D-GN/WH  | 2528  | 12-Volt Reference  | 
15  | L-BU/WH  | 1229  | PCS Valve 1 Control (L18/LLY)  | 
PU  | 7581  | Transmission Pressure Control Solenoid 1 (LG4/LG5)  | |
16  | BN  | 323  | 12-Volt Reference  | 
17  | BN/WH  | 2469  | PCS Valve 2 Control  | 
18  | OG/BK  | 1786  | Park/Neutral Signal  | 
19  | D-BU  | 1530  | Transmission Mainline Pressure Solenoid Control  | 
20  | GY  | 773  | Internal Mode Switch Signal C  | 
21  | YE  | 772  | Internal Mode Switch Signal B  | 
22  | BK/WH  | 771  | Internal Mode Switch Signal A  | 
23  | WH  | 776  | Internal Mode Switch Signal P  | 
24  | PU  | 2471  | Trans ID  | 
Connector Part Information
  | 
Terminal Part Information
  | 
Pin  | Wire Color  | Circuit No.  | Function  | 
|---|---|---|---|
1  | BN  | 323  | 12-Volt Reference  | 
2  | RD  | 7582  | Transmission Pressure Control Solenoid 4  | 
3  | RD  | 1226  | Transmission Fluid Pressure Switch Signal C  | 
4  | PU  | 7581  | Transmission Pressure Control Solenoid 1  | 
5  | YE  | 7580  | Transmission Pressure Control Solenoid 2  | 
6  | BN  | 323  | 12-Volt Reference  | 
7  | --  | --  | Not Used  | 
8  | D-BU  | 1530  | Transmission Mainline Pressure Solenoid Control  | 
9  | YE/BK  | 7579  | Transmission Pressure Control Solenoid 3  | 
10  | OG  | 7578  | Transmission Shift Solenoid (1)  | 
11  | D-GN  | 1531  | Shift Solenoid Supply Voltage (6)  | 
12  | WH  | 1994  | Line Pressure Control Solenoid Valve High Control  | 
13  | OG  | 1983  | Transmission Turbine Speed Switch Signal  | 
14  | L-BU  | 1984  | Transmission Turbine Speed Switch Low Reference  | 
15  | WH  | 1971  | Transmission Oil Level Sensor Signal  | 
16  | GY  | 598  | 5-Volt Reference  | 
17  | --  | --  | Not Used  | 
18  | YE/BK  | 1227  | TFT Sensor Signal  | 
19  | BK  | 407  | Low Reference  | 
20  | PU  | 2471  | Transmission ID Signal  |