5-Pin IL-AG5-5P-S3C1 / IL-AG5-5S-S3C1 Unsealed 0.6mm Connector – Honda / Toyota Electric Power Steering (EPS)

Direct-fit replacement for part numbers IL-AG5-5P-S3C1 (male plug) and IL-AG5-5S-S3C1 (female socket), a 5-pin unsealed 0.6mm pitch connector used for electric power steering (EPS) control module and steering booster harness connections on Honda and Toyota vehicles. A failed EPS connector is a common cause of power steering warning lights and heavy steering complaints.

Key Specifications

• Part Numbers: IL-AG5-5P-S3C1 (male) / IL-AG5-5S-S3C1 (female)
• Pin Count: 5
• Terminal Pitch: 0.6mm
• Seal Type: Unsealed (for dry, protected environments)
• Wire Gauge: 22 AWG (0.3 mm²)
• Wire Length: 5.5 inches (140 mm)
• Housing Material: PA66 nylon
• Terminal Material: Copper alloy, tin-plated
• Current Rating: Up to 3A per pin (signal circuits)
• Package: 1 set (1× male + 1× female with wire)

IL-AG5 Part Number Decoded

• IL – Connector series identifier
• AG5 – Housing variant code
• 5 – Pin count (5-position)
• P / S – Plug (male) / Socket (female)
• S3C1 – Terminal and seal variant code

Compatible Vehicles & Applications

• Honda: Civic (FD/FB/FC), Accord (CP/CU), CR-V (RE/RM) – EPS control module signal harness
• Toyota: Corolla (E140/E150), Camry (XV40/XV50) – electric power steering ECU connector
• Application: EPS torque sensor signal, motor current feedback, and steering angle sensor circuits

EPS Fault Codes Linked to Connector Failure

• Honda: 27-1 / 27-2 – EPS Motor Current Sensor; 11-1 – Torque Sensor (open circuit at IL-AG5 connector)
• Toyota: C1511 – Torque Sensor Circuit; C1515 – EPS Control Module Power Supply
• Symptom: Power steering warning light (orange steering wheel icon) + heavy steering

Frequently Asked Questions

Q: Can a bad EPS connector cause heavy steering?
A: Yes. An open circuit at the IL-AG5-5P-S3C1 / IL-AG5-5S-S3C1 connector interrupts the torque sensor or motor control signal, causing the EPS module to disable power assist as a fail-safe. The steering becomes fully manual (heavy). Always inspect the connector before replacing the EPS motor or control module.

Q: What crimping tool is needed for 0.6mm terminals?
A: Use a precision micro-crimper rated for 0.3mm² (22 AWG) – Engineer PA-09 or TE Connectivity 91516-1. Standard automotive crimpers will crush the 0.6mm terminal barrel.

Q: Is this connector waterproof?
A: No. The IL-AG5-5P-S3C1 / IL-AG5-5S-S3C1 is unsealed – designed for the dry, protected environment inside the EPS control module housing or steering column cover.

Package Contents

1 × 5-Pin Male Connector (IL-AG5-5P-S3C1) with 22 AWG wire
1 × 5-Pin Female Connector (IL-AG5-5S-S3C1) with 22 AWG wire and terminal inserts