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Power Steering System Connectors

Electronic Power Steering (EPS) Control Module C1

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		OEM: 10721337 Service: See Catalog 2-Way F 375 58 (BK)
Pin	Wire Color	Circuit No.	Function
1	RD/BK	642	Battery Positive Voltage
2	BK	1150	Ground

Electronic Power Steering (EPS) Control Module C2

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		OEM: 15438391 Service: See Catalog 6-Way F 040 (GY)
Pin	Wire Color	Circuit No.	Function
1	TN/BK	2500	High Speed GMLAN Serial Data (+) (1)
2	TN	2501	High Speed GMLAN Serial Data (-) (1)
3	-	-	Not Used
4	BN/WH	2500	High Speed GMLAN Serial Data (+) (1)
5	BN	2501	High Speed GMLAN Serial Data (-) (1)
6	PK	1539	Run/Crank Ignition 1 Voltage

Electronic Power Steering Control Module (PSCM) C3

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		7123-4123-30 2-Way F (BU)
Pin	Wire Color	Circuit No.	Function
+	RD	5	Motor Control
-	BK	5	Motor Control