GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2007 🢒 TopKick C-Series (Conventional) C6/C7/C8 🢒 HVAC 🢒 HVAC - Manual 🢒 Automatic Transmission Internal Connector End Views
Connector 1: Internal Mode Switch (IMS) (Allison® LCT)
Connector 2: Pressure Control Solenoid (PCS) MAINMOD Valve (Allison® LCT)
Connector 3: Pressure Control Solenoid 1 (PCS1) (Allison® LCT)
Connector 4: Pressure Control Solenoid 2 (PCS2) (Allison® LCT)
Connector 5: Pressure Switch Manifold (PSM) (Allison® LCT)
Connector 6: Shift Solenoid 1 (Allison® LCT)
Connector 7: Shift Solenoid 2 (Allison® LCT)
Connector 8: Shift Solenoid 3 (Allison® LCT)
Connector 9: Torque Converter Clutch Pulse Width Modulation (TCC PWM) Solenoid Valve (Allison® LCT)

Internal Mode Switch (IMS) (Allison® LCT)
Object Number: 73215 Size: CH

Connector Part Information

  • OEM: 29543226
  • Service: See Catalog
  • Description: 6-Way F Metri-Pack 150.2 Series Pull-to-Seat (NA)

Terminal Part Information

  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit

Internal Mode Switch (IMS) (Allison® LCT)

Pin

Wire Color

Circuit No.

Function

A

PU/BK

1786

Internal Mode Switch Signal NS

B

PK/BK

776

Internal Mode Switch Signal P

C

YE/BK

771

Internal Mode Switch Signal A

D

TN/WH

772

Internal Mode Switch Signal B

E

BK/WH

773

Internal Mode Switch Signal C

F

BK

407

Low Reference

Pressure Control Solenoid (PCS) MAINMOD Valve (Allison® LCT)
Object Number: 82345 Size: CH

Connector Part Information

  • OEM: 12146094
  • Service: 12146094
  • Description: 2-Way F Metri-Pack 150.2 Series Pull-to-Seat (GY)

Terminal Part Information

  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit

Pressure Control Solenoid (PCS) MAINMOD Valve (Allison® LCT)

Pin

Wire Color

Circuit No.

Function

A

RD

2528

12-Volt Reference

B

YE

1530

Transmission Mainline Pressure Solenoid Control

Pressure Control Solenoid 1 (PCS1) (Allison® LCT)
Object Number: 711794 Size: CH

Connector Part Information

  • OEM: 15326727
  • Service: See Catalog
  • Description: 2-Way F SRS Faston (NA)

Terminal Part Information

  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit

Pressure Control Solenoid 1 (PCS1) (Allison® LCT)

Pin

Wire Color

Circuit No.

Function

1

RD

2528

12-Volt Reference

2

D-BU

1229

PCS Valve 1 Control

Pressure Control Solenoid 2 (PCS2) (Allison® LCT)
Object Number: 711794 Size: CH

Connector Part Information

  • OEM: 15326727
  • Service: See Catalog
  • Description: 2-Way F SRS Faston (NA)

Terminal Part Information

  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit

Pressure Control Solenoid 2 (PCS2) (Allison® LCT)

Pin

Wire Color

Circuit No.

Function

1

RD/BK

323

12-Volt Reference

2

L-BU

2469

PCS Valve 2 Control

Pressure Switch Manifold (PSM) (Allison® LCT)
Object Number: 73215 Size: CH

Connector Part Information

  • OEM: 29543226
  • Service: See Catalog
  • Description: 6-Way F Metri-Pack 150.2 Series Pull-to-Seat (NA)

Terminal Part Information

  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit

Pressure Switch Manifold (PSM) (Allison® LCT)

Pin

Wire Color

Circuit No.

Function

A

OG

1224

Transmission Fluid Pressure Switch Signal 1

B

WH

1225

Transmission Fluid Pressure Switch Signal 2

C

GY

1226

Transmission Fluid Pressure Switch Signal 3

D

BN

2529

Transmission Fluid Pressure Switch Signal 4 (Reverse)

E

TN

1227

TFT Sensor Signal

F

BK

407

Low Reference

Shift Solenoid 1 (Allison® LCT)
Object Number: 82345 Size: CH

Connector Part Information

  • OEM: 12146094
  • Service: 12146094
  • Description: 2-Way F Metri-Pack 150.2 Series Pull-to-Seat (GY)

Terminal Part Information

  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit

Shift Solenoid 1 (Allison® LCT)

Pin

Wire Color

Circuit No.

Function

A

RD/BK

323

12-Volt Reference

B

D-GN

898

Shift Solenoid 1 Valve Control

Shift Solenoid 2 (Allison® LCT)
Object Number: 82345 Size: CH

Connector Part Information

  • OEM: 12146094
  • Service: 12146094
  • Description: 2-Way F Metri-Pack 150.2 Series Pull-to-Seat (GY)

Terminal Part Information

  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit

Shift Solenoid 2 (Allison® LCT)

Pin

Wire Color

Circuit No.

Function

A

RD/BK

323

12-Volt Reference

B

L-GN

2879

Shift Solenoid 2 Valve Control

Shift Solenoid 3 (Allison® LCT)
Object Number: 82345 Size: CH

Connector Part Information

  • OEM: 12146094
  • Service: 12146094
  • Description: 2-Way F Metri-Pack 150.2 Series Pull-to-Seat (GY)

Terminal Part Information

  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit

Shift Solenoid 3 (Allison® LCT)

Pin

Wire Color

Circuit No.

Function

A

RD/BK

323

12-Volt Reference

B

PU

2527

Shift Solenoid 3 Valve Control

Torque Converter Clutch Pulse Width Modulation (TCC PWM) Solenoid Valve (Allison® LCT)
Object Number: 711794 Size: CH

Connector Part Information

  • OEM: 15326727
  • Service: See Catalog
  • Description: 2-Way F SRS Faston (NA)

Terminal Part Information

  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit

Torque Converter Clutch Pulse Width Modulation (TCC PWM) Solenoid Valve (Allison® LCT)

Pin

Wire Color

Circuit No.

Function

1

RD

2528

12-Volt Reference

2

PK

1994

TCC PWM Solenoid Valve Control