GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2006 🢒 GMC Sierra Denali 🢒 HVAC 🢒 HVAC Systems - Automatic 🢒 Cooling System Connector End Views
Connector 1: Auxiliary Water Pump (HP2)
Connector 2: Coolant Level Switch (8.1L)
Connector 3: Coolant Level Switch (Diesel)
Connector 4: Cooling Fan - Left (10 Series)
Connector 5: Cooling Fan - Right (10 Series)
Connector 6: Starter/Generator Control Module Coolant Pump (HP2)

Auxiliary Water Pump (HP2)
Object Number: 1405759 Size: CH

Connector Part Information

  • OEM: 12084126
  • Service: 89046833
  • Description: 2-Way F Sealed (BK)

Auxiliary Water Pump (HP2)

Pin

Wire Color

Circuit No.

Function

1

BK

550

Ground

2

TN/WH

5543

Auxiliary Heater Pump Voltage

Coolant Level Switch (8.1L)
Object Number: 537107 Size: CH

Connector Part Information

  • OEM: 12052644
  • Service: See Catalog
  • Description: 2-Way F Metri-Pack 150 Series Sealed (GY)

Terminal Part Information

  • Pins: A
  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit
  • Pins: B
  • Terminal/Tray: 12048074/2
  • Core/Insulation Crimp: E/1
  • Release Tool/Test Probe: 12094429/J-35616-2A (GY)

Coolant Level Switch (8.1L)

Pin

Wire Color

Circuit No.

Function

A

L-GN

1478

Coolant Level Switch Signal

B

BK

550

Ground

Coolant Level Switch (Diesel)
Object Number: 655783 Size: CH

Connector Part Information

  • OEM: 15324243
  • Service: Not Serviced
  • Description: 2-Way F Metri-Pack 150 Series Sealed (GY)

Terminal Part Information

  • Terminal/Tray: 12048074/2
  • Core/Insulation Crimp: E/1
  • Release Tool/Test Probe: 12094429/J-35616-2A (GY)

Coolant Level Switch (Diesel)

Pin

Wire Color

Circuit No.

Function

A

L-GN

1478

Coolant Level Switch Signal

B

BK

550

Ground

Cooling Fan - Left (10 Series)
Object Number: 1509935 Size: CH

Connector Part Information

  • OEM: 15454358
  • Service: 88987983
  • Description: 2-Way F GT 630 Series (BK)

Terminal Part Information

  • Terminal/Tray: 15455571/23
  • Core/Insulation Crimp: F/3
  • Release Tool/Test Probe: 15315247/J-35616-42 (RD)

Cooling Fan - Left (10 Series)

Pin

Wire Color

Circuit No.

Function

A

YE

5358

Cooling Fan Motor Control

B

GY

532

Cooling Fan Motor Supply Voltage

Cooling Fan - Right (10 Series)
Object Number: 1509935 Size: CH

Connector Part Information

  • OEM: 15454358
  • Service: 88987983
  • Description: 2-Way F GT 630 Series (BK)

Terminal Part Information

  • Terminal/Tray: 15455571/23
  • Core/Insulation Crimp: F/3
  • Release Tool/Test Probe: 15315247/J-35616-42 (RD)

Cooling Fan - Right (10 Series)

Pin

Wire Color

Circuit No.

Function

A

BK

250

Ground

B

L-BU

409

Cooling Fan Motor Supply Voltage

Starter/Generator Control Module Coolant Pump (HP2)
Object Number: 1405759 Size: CH

Connector Part Information

  • OEM: 12131678
  • Service: 89046833
  • Description: 2-Way F Sealed (BK)

Terminal Part Information

  • Terminal/Tray: 12177068/8
  • Core/Insulation Crimp: C/A
  • Release Tool/Test Probe: 12093647/J-35616-4A (PU)

Starter/Generator Control Module Coolant Pump (HP2)

Pin

Wire Color

Circuit No.

Function

1

BK

150

Ground

2

L-BU

703

Ignition 1 Voltage