Product Overview
The PICO 5571PT is a durable Red LED On-Off Toggle Switch designed for various electrical applications, particularly in automotive systems. It features a simple ON-OFF operation mode and quick connect terminals for easy installation. The integrated red LED provides visual indication of the switch's 'ON' state.

Figure 1: PICO 5571PT Red LED On-Off Toggle Switch. This image shows the toggle switch with its metal lever, mounting nut, and the black body. On the back, a yellow label clearly marks the three spade terminals for 'GROUND', 'ACC' (Accessory), and 'POWER' connections, along with directional arrows.
Safety Information
Always disconnect power before installing or servicing electrical components. Improper installation can lead to electrical shock, fire, or damage to the product and connected devices. Consult a qualified electrician if you are unsure about any part of the installation process. This product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm (Proposition 65 warning).
Setup and Installation
The PICO 5571PT toggle switch is designed for straightforward installation. Ensure you have the necessary tools and understand the wiring diagram before proceeding.
Tools Required:
- Wire strippers/crimpers
- Appropriate gauge electrical wire
- Quick connect terminals (if not pre-attached to wires)
- Drill with appropriate size bit (for mounting hole, if needed)
- Wrench or pliers (for tightening mounting nut)
Wiring Diagram:
Refer to the yellow label on the back of the switch for terminal identification. The switch has three terminals:
- GROUND: Connect to a reliable chassis ground or negative terminal of the power source.
- ACC (Accessory): Connect to the positive terminal of the device you wish to power.
- POWER: Connect to the positive power source (e.g., battery positive, fused ignition wire).
Ensure all connections are secure and insulated to prevent short circuits.
Operating Instructions
The PICO 5571PT is an ON-OFF switch. Its operation is simple:
- To turn the connected device ON, toggle the lever to the 'ON' position. The red LED at the tip of the lever will illuminate, indicating that power is flowing through the switch to the accessory.
- To turn the connected device OFF, toggle the lever to the 'OFF' position. The red LED will extinguish, indicating that power has been disconnected from the accessory.
The switch provides a clear tactile feedback when changing positions.
Maintenance
The PICO 5571PT toggle switch is designed for durability and requires minimal maintenance.
- Cleaning: Periodically wipe the exterior of the switch with a clean, dry cloth to remove dust and debris. Avoid using harsh chemicals or abrasive cleaners.
- Connection Check: Annually inspect the wiring connections to ensure they remain secure and free from corrosion. Re-crimp or clean terminals as necessary.
- Environmental Protection: While robust, avoid exposing the switch to excessive moisture, extreme temperatures, or corrosive environments beyond its intended operating conditions.
Troubleshooting
If the switch or connected device is not functioning as expected, consider the following:
| Problem | Possible Cause | Solution |
|---|---|---|
| Switch does not turn ON/LED does not light up. | No power to the switch; faulty wiring; blown fuse; faulty switch. | Check power source and fuse. Verify all wiring connections (Power, ACC, Ground). Test switch continuity with a multimeter. |
| Connected device does not turn ON, but LED lights up. | Faulty wiring to the device; faulty device. | Check wiring from ACC terminal to the device. Test the device directly if possible. |
| Switch feels loose or wobbly. | Mounting nut is loose. | Carefully tighten the mounting nut on the switch shaft. |
Specifications
| Attribute | Detail |
|---|---|
| Brand | PICO |
| Model Number | 5571PT |
| Operation Mode | ON-OFF |
| Material | Metal |
| Terminal Type | SPST (Single Pole, Single Throw) |
| Connector Type | Quick Connect |
| Bulb Type | LED (Red) |
| Item Weight | 0.64 ounces |
| Package Dimensions | 4 x 3 x 2 inches |
Warranty and Support
Specific warranty information for PICO products is typically provided at the point of purchase or on the official PICO website. For technical support, product inquiries, or warranty claims, please contact PICO customer service directly.
While specific contact details are not provided in this manual, general support information can often be found on the manufacturer's official website or through the retailer from whom the product was purchased.





