Electronic Suspension Control (ESC) Module Connector End Views

Electronic Suspension Control (ESC) Module - C1

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12110626 8-Way F Metri-Pack 280 Series (GY)
Pin	Wire Color	Circuit No.	Function
A	L BU/WH	1116	Right Front Suspension Damper Solenoid Control
B	D GN	1119	Right Rear Suspension Damper Solenoid Low Reference
C	BK	2351	Ground
D	OG	2440	Battery Positive Voltage
E	BK	1450	Ground - Except Avalanche and Escalade EXT
	BK	1250	Ground - Avalanche and Escalade EXT
F	GY	1113	Left Front Suspension Damper Solenoid Low Reference
G	GY	1117	Right Front Suspension Damper Solenoid Low Reference
H	D GN	1115	Left Rear Suspension Damper Solenoid Low Reference

Electronic Suspension Control (ESC) Module - C2

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12110244 24-Way F Micro-Pack (PK)
Pin	Wire Color	Circuit No.	Function
A1-A8	-	-	Not Used
A9	GY	416	5-Volt Reference
A10	L BU	2248	Real Time Damping Compressor Relay Control
A11	-	-	Not Used
A12	L BU/WH	1107	Left Front Suspension Damper Solenoid Control
B1	D BU/WH	1118	Right Rear Suspension Damper Solenoid Control
B2	WH	1765	Steering Wheel Position Marker Pulse Signal
B3	-	-	Not Used
B4	L BU	1764	Steering Wheel Position Signal B
B5	D BU	2249	Real Time Damping Compressor Exhaust Control
B6	L GN	1763	Steering Wheel Position Signal A
B7	-	-	Not Used
B8	D BU/WH	1126	SCM Class 2 Serial Data
B9	-	-	Not Used
B10	BK	407	Low Reference
B11-B12	-	-	Not Used

Electronic Suspension Control (ESC) Module - C3

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		121102206 24-Way F Micro-Pack (L BU)
Pin	Wire Color	Circuit No.	Function
A1	PK/WH	1101	Damping Lift/Dive Signal
A2	TN/WH	1207	Left Front Suspension Position Sensor Signal
A3	PU/WH	1205	Left Front Suspension Position Sensor Voltage Reference
A4	TN/WH	1213	Right Front Suspension Position Sensor Signal
A5	L GN/WH	1210	Left Rear Suspension Position Sensor Signal
A6	RD/BK	1208	Left Rear Suspension Position Sensor Voltage Reference
A7	L GN/WH	1216	Right Rear Suspension Position Sensor Signal
A8-A11	-	-	Not Used
A12	D BU/WH	1114	Left Rear Suspension Damper Solenoid Control
B1	BN	541	Ignition 3 Voltage
B2	L BU/BK	1206	Left Front Suspension Position Sensor Low Reference
B3	PU/WH	1211	Right Front Suspension Position Sensor Voltage Reference
B4	L BU/BK	1212	Right Front Suspension Position Sensor Low Reference
B5	L GN/BK	1209	Left Rear Suspension Position Sensor Low Reference
B6	RD/BK	1214	Right Rear Suspension Position Sensor Voltage Reference
B7	L GN/BK	1215	Right Rear Suspension Position Sensor Low Reference
B8-B10	-	-	Not Used
B11	TN	2252	Leveling Pressure Sensor Signal
B12	-	-	Not Used