Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

2007 Saturn Ion Red LineFACTORY OEM SERVICE PROCEDURE

Power Steering Control Module (PSCM) C3

Fig 1: Power Steering Control Module (PSCM) C3 Connector End View

Courtesy of GENERAL MOTORS CORP.

Power Steering Control Module (PSCM) C3 Connector & Terminal Parts Information

Connector Part Information

OEM: 7123-4123-30
Service: 88952816
Description: 2-Way F (BU)

Terminal Part Information

Terminal/Tray: See Terminal Repair Kit
Core/Insulation Crimp: See Terminal Repair Kit
Release Tool/Test Probe: See Terminal Repair Kit

Power Steering Control Module (PSCM) C3 Terminal Identification

Pin	Wire Color	Circuit No.	Function
+	RD	5	Motor Control
-	BK	5	Motor Control

Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.