Toyota 2-Pin Secondary Drive System Wire Harness Connector – Female OEM

Toyota’s secondary drive systems – including the rear differential lock actuator, secondary air injection pump, and 4WD secondary drive motor – use dedicated 2-pin connectors that must withstand the mechanical stress and environmental exposure of drivetrain-adjacent locations. This 2-pin female connector serves the secondary drive system harness on Toyota platforms, carrying actuator power and control circuits for the secondary drive mechanism. Available bare or with 15cm pre-wired leads.

Key Specifications

Secondary Drive System – Why This Connector Matters

Toyota’s secondary drive systems operate infrequently but must function reliably on demand. The rear differential lock actuator on Hilux and Land Cruiser, the secondary air injection pump on emission-controlled engines, and the 4WD secondary drive motor on RAV4 and Fortuner all rely on 2-pin connectors that are rarely disturbed during routine maintenance. This infrequency means corrosion can develop undetected over years of exposure to road spray, mud, and thermal cycling. When the system is finally called upon – in off-road conditions or during an emissions test – a corroded connector causes actuator failure, P0410 (secondary air injection system), or 4WD engagement faults. The relatively high price of this connector reflects its specialized application and the precision required for reliable actuator control.

Variant Guide

• Female – Bare 2-pin housing with terminals
• Female 15CM – Pre-wired with 15cm leads for direct splice-in installation

Installation Steps

1. Disconnect the vehicle battery
2. Locate the 2-pin secondary drive connector on the actuator or pump harness
3. Release the locking tab and unplug the original connector
4. Inspect terminals for corrosion – replace corroded terminals before installing the new housing
5. Transfer terminals to the new housing or splice in the pre-wired variant
6. Reconnect and verify secondary drive system function with Toyota Techstream

Frequently Asked Questions

Q: What Toyota models use this 2-pin secondary drive connector?
A: This connector is used on Toyota Hilux, Land Cruiser, RAV4, Fortuner, and Lexus GX secondary drive system harnesses. Cross-reference your vehicle’s wiring diagram to confirm fitment.

Q: What fault codes indicate a failed secondary drive connector?
A: Common codes include P0410 (secondary air injection system), C1241 (4WD actuator circuit), and rear differential lock actuator faults on Toyota Techstream.

Q: Are terminals included?
A: Yes, terminals are included with all variants.

Compatible Applications

• Toyota Hilux / Land Cruiser – Rear differential lock actuator harness
• Toyota RAV4 / Fortuner – 4WD secondary drive motor connector
• Toyota emission-controlled engines – Secondary air injection pump harness
• Lexus GX – Secondary drive system wiring