Electronic Brake Control Module (EBCM) Connector End View

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		15405449 50-Way F Mixed Series Sealed (BK)
Pin	Wire Color	Circuit No.	Function
A	RD/BK	542	Battery Positive Voltage
B	RD/BK	542	Battery Positive Voltage
C	PK	139	Ignition 1 Voltage
D	-	-	Not Used
E	BK	350	Ground
F	BK	350	Ground
G-H	-	-	Not Used
A1	L-BU	830	Left Front Wheel Speed Sensor Supply Voltage
A2	YE	873	Left Front Wheel Speed Sensor Signal
A3	D-GN	872	Right Front Wheel Speed Sensor Supply Voltage
A4	TN	833	Right Front Wheel Speed Sensor Signal
A5	TN	884	Left Rear Wheel Speed Sensor Supply Voltage
A6	OG	885	Left Rear Wheel Speed Sensor Signal
A7	BN	882	Right Rear Wheel Speed Sensor Supply Voltage
A8	WH	883	Right Rear Wheel Speed Sensor Signal
A9-A14	-	-	Not Used
B1-B8	-	-	Not Used
B9	TN	2501	High Speed GMLAN Serial Data Bus -
B10	TN	2501	High Speed GMLAN Serial Data Bus -
B11	TN/BK	2500	High Speed GMLAN Serial Data Bus +
B12	TN/BK	2500	High Speed GMLAN Serial Data Bus +
B13-B14	-	-	Not Used
C1-C14	-	-	Not Used