GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2007 🢒 Sierra Classic - 4WD 🢒 Brakes 🢒 Hydraulic Brakes 🢒 Hydraulic Brake Connector End Views
Connector 1: Brake Fluid Level Switch (Except JC4)
Connector 2: Brake Pressure Differential Switch (JC4)
Connector 3: Park Brake Switch
Connector 4: Supplemental Brake Assist Pump Motor (JC4)

Brake Fluid Level Switch (Except JC4)
Object Number: 232831 Size: CH

Connector Part Information

  • OEM: 12162194
  • Service: 88987993
  • Description: 2-Way F Metri-Pack 150.2 Series (BK)

Terminal Part Information

  • Terminal/Tray: 12124075/5
  • Core/Insulation Crimp: E/C
  • Release Tool/Test Probe: 12180559-1/J-35616-2A (GY)

Brake Fluid Level Switch (Except JC4)

Pin

Wire Color

Circuit No.

Function

A

BK

550

Ground

B

PU

333

Brake Fluid Level Sensor Signal

Brake Pressure Differential Switch (JC4)
Object Number: 847209 Size: CH

Connector Part Information

  • OEM: 12052646
  • Service: 12101857
  • Description: 2-Way F Metri-Pack 150 Series Sealed (WH)

Terminal Part Information

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

Brake Pressure Differential Switch (JC4)

Pin

Wire Color

Circuit No.

Function

A

PU

333

Brake Fluid Level Sensor Signal

B

BK

550

Ground

Park Brake Switch
Object Number: 365953 Size: CH

Connector Part Information

  • OEM: 12092133
  • Service: 12167133
  • Description: 1-Way F Metri-Pack 630 Self Lock Series (BK)

Terminal Part Information

  • Terminal/Tray: 12103325/3
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: 12094430/J-35616-42 (RD)

Park Brake Switch

Pin

Wire Color

Circuit No.

Function

A

L-BU

1134

Park Brake Switch Signal

Supplemental Brake Assist Pump Motor (JC4)
Object Number: 886053 Size: CH

Connector Part Information

  • OEM: 15326830
  • Service: 88953153
  • Description: 6-Way F GT 150 Series (BK)

Terminal Part Information

  • Terminal/Tray: 12191819/8
  • Core/Insulation Crimp: E/A
  • Release Tool/Test Probe: 15315247/J-35616-2A (GY)

Supplemental Brake Assist Pump Motor (JC4)

Pin

Wire Color

Circuit No.

Function

A

BK

1050

Ground

B

PK

139

Ignition 1 Voltage

C

BK/WH

1851

Ground

D

BK/WH

5668

Engine ON Signal

E

D-GN/WH

817

Vehicle Speed Signal

F

D-BU

2713

Supplemental Brake Assist Signal