Hydraulic Brakes Connectors

Brake Fluid Level Switch (Except JC4)

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12162194 2-Way F Metri-Pack 150.2 Series (BK)
Pin	Wire Color	Circuit No.	Function
A	BK	550	Ground
B	PU	333	Brake Fluid Level Sensor Signal

Brake Pressure Differential Switch (JC4)

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12052646 2-Way F Metri-Pack 150 Series Sealed (WH)
Pin	Wire Color	Circuit No.	Function
A	PU	333	Brake Fluid Level Sensor Signal
B	BK	550	Ground

Park Brake Switch

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12092133 1-Way F Metri-Pack 630 Self Lk Series (BK)
Pin	Wire Color	Circuit No.	Function
A	L-BU	1134	Park Brake Switch Signal

Supplemental Brake Assist Pump Motor (JC4)

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		15326830 6-Way F GT 150 (BK)
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