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 Cadillac STS VFACTORY OEM SERVICE PROCEDURE

Keyless Entry Antenna

Fig 1: Keyless Entry Antenna Connector End View

Courtesy of GENERAL MOTORS CORP.

Keyless Entry Antenna Connector Parts Information

Connector Part Information

OEM: IL-AG5-5S-S3C1
Service: 88988111
Description: 5-Way F IL-AG5 Series (L-GN)

Terminal Part Information

Pins: 2, 3, 4, 5
Terminal/Tray: See Terminal Repair Kit
Core/Insulation Crimp: See Terminal Repair Kit
Release Tool/Test Probe: See Terminal Repair Kit

Keyless Entry Antenna Connector Terminal Identification

Pin	Wire Color	Circuit No.	Function
1	-	-	Not Used
2	PU/WH	5715	Keyless Entry Active Antenna Supply Voltage
3	GY	5717	Keyless Entry Active Antenna Data Signal
4	L-BU	5716	Keyless Entry Active Antenna Clock Signal
5	OG/BK	5718	Keyless Entry Active Antenna Low Reference

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.