Automatic Level Control Suspension Connectors

Automatic Level Control (ALC) Compressor Relay

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12129716 4-Way F Metri-Pack 280 Series (GRY)
Pin	Wire Color	Circuit No.	Function
30	RED	742	Battery Positive Voltage
85	BRN	541	Ignition 3 Voltage
86	LT BLU	2248	Real Time Damping Compressor Relay Control
87	LT BLU	1112	Damping Relay Coil Control

Automatic Level Control (ALC) Air Compressor

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12110751 7-Way F Metri-Pack 280 Series (BLK)
Pin	Wire Color	Circuit No.	Function
A	LT BLU	1112	Damping Relay Coil Control
B	DK BLU	2249	Exhaust Solenoid Control
C	BLK	407	Low Reference
D	TAN	2252	Pressure Sensor Signal
E	GRY	416	5-Volt Reference
F	ORN	2440	Battery Positive Voltage
G	BLK	1750	Ground