Reverse Light Switch - CI - XRLS109
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eBayReverse Light Switch fits TOYOTA DYNA 2.5D 3.0D 2001 on CI 8421004010 842100K010
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Reverse Light Switch XRLS109 CI 8421004010 842100K010 8421012040 8422212010 NewFree delivery in 1–3 days£13.99Visit shop →
Reverse Light Switch XRLS109 CI 8421004010 842100K010 8421012040 8422212010 NewFree delivery in 1–3 days£13.99Visit shop →
Ci Ignition Light Xrls109 Reverse SwitchFree delivery in 1–3 days£24.99Visit shop →
Product Information
Full details
The CI Reverse Light Switch (XRLS109) is designed for automotive technicians and DIY vehicle owners seeking a reliable, high-precision replacement component for their reverse light systems. Engineered to meet strict industry standards, this switch ensures consistent light activation upon shifting into reverse; however, users must verify their specific vehicle's thread size and connector type against the specifications to ensure a correct fit, as this part features a 2-pin oval connector and M18 x 1.5 threading.
All features
| Model Part Number | XRLS109 |
|---|---|
| Brand | CI |
Extended Product Information
FAQs
What is the thread size for the XRLS109?
This switch has an M18 x 1.5 thread size.
What tools are required to install this switch?
You will need a 27 mm spanner or a deep-well socket to install this component.
Is this a universal part?
No, it is a specific replacement part. You must verify compatibility with your vehicle's make, model, and year.
How long is the switch unit?
The switch has a total length of 39 mm.
What does the 2-pin oval connector imply?
It indicates the specific shape and pin configuration required for the electrical harness connection on your vehicle.
Can I install this myself?
If you are comfortable working under a vehicle and have the correct tools, this is generally considered a straightforward maintenance task.
Troubleshooting
Reverse lights do not turn on after installation
Check the 2-pin connector for a secure fit, verify the fuse in the vehicle's fuse box, and check the bulb filaments.
Lights stay on constantly while in forward gears
Verify that the switch is seated correctly and not cross-threaded; ensure the switch plunger is not stuck in the compressed position.
Transmission fluid leak around the switch base
Check that the washer is present and the switch is tightened to the correct torque specification.
Pros and Cons
Pros
- Meets or exceeds strict industry manufacturing standards
- Standardized 2-pin oval connector simplifies installation
- Robust build quality for long-term reliability
- Precise M18 x 1.5 thread ensures a perfect fit
Cons
- Not compatible with all vehicle makes and models
- Requires mechanical knowledge to access the transmission housing
- Specific 27 mm spanner requirement may need a specialized tool
Setup, Compatibility & Care
Before installation, ensure the vehicle is parked on a flat surface and the transmission is in neutral with the parking brake applied. Locate the existing switch on the transmission casing; removal typically requires a 27 mm deep-well socket or spanner. Clean the area around the switch port before removal to prevent debris from entering the transmission fluid. Thread the new switch in by hand initially to avoid cross-threading, then tighten to manufacturer-specified torque settings. Do not overtighten, as this may damage the housing or threads. Regularly inspect the 2-pin connector for signs of corrosion and ensure the wiring harness is free of tension or excessive heat exposure.