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Standard Ignition NS-644 Neutral Safety Switch
| Brand | Standard Ignition NS-644 |
|---|---|
| Color | Black, Silver |
| Connector Gender | Female |
| Connector Shape | Rectangular |
| Finish | Aluminum, Plastic |
| Material | Metal |
| Mounting Type | Bolt Mount |
| Terminal Gender | Male |
| Terminal Type | Blade |
| Fits | Scion · 7 vehicles |
Bolt-mount design. Installs securely with a simple bolt-on attachment method.
Metal construction. Built with a durable metal body for dependable operation.
12V electrical switch. Made for standard 12-volt systems with blade terminals.
Cross-references Standard Ignition NS-644, 8454052080 and CSW541 for the same application. See all 5.
Neutral Safety Switch for Scion xD
Standard Ignition NS-644 is a 12V neutral safety switch built with a bolt-mount design, a rectangular female connector, and 9 male blade terminals. It is a direct-fit electrical replacement for select Scion xD applications from 2008-2014, including 2008 Scion xD, 2009 Scion xD, 2010 Scion xD, 2011 Scion xD, 2012 Scion xD, 2013 Scion xD, and 2014 Scion xD.
- Neutral safety switch for automatic transmission starting circuit control
- 12V electrical component with 9-terminal blade connection
- Bolt-mount attachment method for secure installation
- Rectangular female connector with black, silver, aluminum, and plastic construction
- Standard Ignition NS-644 replacement for OE-style service
Detailed Product Overview
The Standard Ignition NS-644 neutral safety switch is used to help ensure the vehicle starts only in the proper transmission range. Built with a metal body and a single rectangular connector, it follows the OE-style layout needed for service on the Scion xD. This part cross-references 8454052080 and NS7046 for the same application.
For shoppers searching for a neutral safety switch for 2008-2014 Scion xD, or a Standard Ignition NS-644 replacement neutral safety switch, this part provides the specified terminal count, connector style, and bolt-mount configuration needed for a proper match.
Common Issues This Part May Address
- Engine cranks only in certain gear positions
- No-crank condition related to the transmission range circuit
- Starting interlock faults tied to the neutral safety switch
- Incorrect park/neutral signal to the starting system
- Electrical connection problems at the transmission-mounted switch
Installation Notes and Tips
Verify the connector shape, terminal count, and mounting style against the original part before installation. The NS-644 uses a bolt-mount design and does not include mounting hardware or gaskets, so reuse or source the required service components as needed. Confirm transmission range alignment after installation to help ensure proper starting operation.
Quality Assurance
Standard Ignition supplies electrical service parts for replacement applications, and the NS-644 is built to match the listed fitment and connector specifications for select Scion xD models.
| Year | Make | Model | Submodel | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2014 | Scion | xD | — | — | — | N/A | — |
| 2013 | Scion | xD | — | — | — | N/A | — |
| 2012 | Scion | xD | — | — | — | N/A | — |
| 2011 | Scion | xD | Base | — | — | N/A | — |
| 2010 | Scion | xD | — | 1.8L | L4 | N/A | — |
| 2009 | Scion | xD | — | 1.8L | L4 | N/A | — |
| 2008 | Scion | xD | — | 1.8L | L4 | N/A | — |
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