OE Quality
60-Day Returns

Standard Ignition NS-109 Neutral Safety Switch
Reliable Neutral Safety Switch for Honda Civic
The Standard Ignition NS-109 neutral safety switch is designed specifically for Honda Civic models, ensuring proper electrical function and safety. This essential component helps prevent the engine from starting unless the transmission is in neutral or park.
Key Features of Standard Ignition NS-109
- Compatible with Honda Civic vehicles
- Ensures safe engine start by detecting transmission position
- Durable construction for long-lasting performance
- Direct replacement part number NS-109 for easy identification
- Maintains proper electrical connection within the starting system
Detailed Description of the Neutral Safety Switch
The Standard Ignition NS-109 neutral safety switch is an electrical component that plays a critical role in the starting system of Honda Civic vehicles. It prevents the engine from starting unless the transmission is in the correct position, either neutral or park, thereby reducing the risk of accidental vehicle movement. This switch is engineered to meet OEM specifications, providing reliable operation and compatibility with the vehicle’s electrical system. The NS-109 part number ensures you receive the correct switch designed for your Honda Civic, maintaining the integrity of your vehicle’s starting and safety systems.
Common Issues Resolved by the NS-109 Neutral Safety Switch
- Engine fails to start when the transmission is in park or neutral
- Intermittent starting problems related to faulty switch contacts
- Prevention of engine start in gear to avoid unintended vehicle movement
- Electrical connection issues within the starting circuit
- Transmission position sensor malfunctions affecting engine start
Installation Notes and Tips
- Ensure the vehicle is in park or neutral before installation
- Disconnect the battery to prevent electrical shorts during replacement
- Follow the Honda Civic service manual for proper switch alignment and adjustment
- Verify the switch wiring connections are secure and free of corrosion
- Test the switch operation before final assembly to confirm correct function
Quality Assurance and Warranty Information
Standard Ignition parts are manufactured to meet or exceed OEM standards, providing dependable performance for your Honda Civic. The NS-109 neutral safety switch undergoes rigorous quality control to ensure durability and proper fitment. While specific warranty details may vary, Standard Ignition typically offers a limited warranty covering defects in material and workmanship to support your investment in vehicle safety and reliability.
| Brand | Standard Ignition |
| Part Number | NS-109 |
| Color | Gray, White |
| Connector Gender | Female |
| Finish | Plastic |
| Terminal Gender | Male |
| Terminal Type | Blade Terminals |
This part fits 16 vehicles. Search below:
| Year | Make | Model | Submodel | Transmission | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|---|
| 2000 | Honda | Civic | CX | Automatic | 1.6L | L4 | N/A | |
| 2000 | Honda | Civic | DX | Automatic | 1.6L | L4 | N/A | |
| 2000 | Honda | Civic | EX | Automatic | 1.6L | L4 | N/A | |
| 2000 | Honda | Civic | GX | Automatic | 1.6L | L4 | N/A | |
| 2000 | Honda | Civic | LX | Automatic | 1.6L | L4 | N/A | |
| 1999 | Honda | Civic | CX | Automatic | N/A | |||
| 1999 | Honda | Civic | EX | Automatic | N/A | |||
| 1999 | Honda | Civic | DX | Automatic | N/A | |||
| 1999 | Honda | Civic | GX | Automatic | N/A | |||
| 1999 | Honda | Civic | LX | Automatic | N/A | |||
| 1998 | Honda | Civic | CX | Automatic | N/A | |||
| 1998 | Honda | Civic | DX | Automatic | N/A | |||
| 1998 | Honda | Civic | EX | Automatic | N/A | |||
| 1998 | Honda | Civic | GX | Automatic | N/A | |||
| 1998 | Honda | Civic | LX | Automatic | N/A | |||
| 1997 | Honda | Civic | EX | Automatic | 1.6L | L4 | N/A |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.