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Standard Ignition NS-45 Neutral Safety Switch
| Brand | Standard Ignition NS-45 |
|---|---|
| Color | Black, Silver |
| Connector Gender | Female |
| Finish | Aluminum, Plastic |
| Terminal Gender | Male |
| Terminal Type | Blade |
| Fits | Geo and Toyota · 22 vehicles |
Bolt-mount design. Installs securely with a simple bolt-on attachment method.
12V operation. Built for standard 12-volt electrical systems.
Blade terminals. Uses a 9-terminal, male blade connection with one female connector.
Cross-references Standard Ignition NS-45, 88923310 and 8454016040 for the same application. See all 6.
Neutral Safety Switch for Toyota and Geo Applications
Standard Ignition NS-45 is a 12V neutral safety switch built with a bolt-mount design, a rectangular female connector, and 9 male blade terminals. It is used on select Toyota and Geo vehicles, including Corolla, Camry, MR2, Tercel, Celica, Paseo, and Prizm applications.
- 12V electrical switch for automatic transmission starting circuit control
- Bolt-mount attachment method for direct replacement installation
- Rectangular 1-connector design with female connector gender
- 9 male blade terminals for the specified vehicle harness layout
- Black and silver finish with aluminum, plastic, and metal construction
- Standard Ignition NS-45 replacement for select Toyota and Geo fitments
Detailed Product Overview
The Standard Ignition NS-45 neutral safety switch helps control starter engagement by allowing the engine to crank only when the transmission is in the proper range. This part is listed for 1987-1993 Toyota Camry, 1988 Toyota Celica, 1992-1994 Toyota Paseo, 1993-1995 Toyota Corolla, 1993-1995 Geo Prizm, 1993 Toyota Tercel, 1993 Toyota MR2 from 11/93, and 1994-1995 Toyota MR2. The NS-45 is a direct-fit electrical replacement for vehicles that use the specified 9-terminal, 1-connector configuration.
This part cross-references Standard Ignition NS-45 for the same application.
Common Problems This Part Can Address
- Engine will not crank in Park or Neutral
- Starter engages in the wrong transmission range
- Intermittent no-start condition related to the shift position circuit
- Transmission range signal issues at the starter interlock circuit
- Electrical connection problems at the neutral safety switch
Installation Notes and Tips
Verify the connector shape, terminal count, and mounting style before installation. This switch uses a bolt-mount attachment and does not include mounting hardware or gaskets. Confirm the vehicle’s transmission range and harness configuration match the listed fitment for Toyota Corolla, Camry, MR2, Tercel, Celica, Paseo, or Geo Prizm applications.
Quality Assurance
Standard Ignition supplies replacement electrical components for service applications, and the NS-45 is built to match the listed OE-style fitment and connector requirements for the specified vehicles.
| Year | Make | Model | Drive Type | Transmission | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|---|
| 1995 | Geo | Prizm | — | Automatic | — | — | N/A | — |
| 1995 | Toyota | Corolla | — | Automatic | 1.6L | L4 | N/A | — |
| 1995 | Toyota | MR2 | — | Automatic | 2.2L | L4 | N/A | — |
| 1994 | Geo | Prizm | — | Automatic | — | — | N/A | — |
| 1994 | Toyota | Corolla | — | Automatic | 1.6L | L4 | N/A | — |
| 1994 | Toyota | MR2 | — | — | 2.0L | L4 | N/A | — |
| 1994 | Toyota | MR2 | — | Automatic | 2.2L | L4 | N/A | — |
| 1994 | Toyota | Paseo | — | Automatic | — | — | N/A | — |
| 1993 | Geo | Prizm | — | Automatic | — | — | N/A | — |
| 1993 | Toyota | Camry | — | Automatic | 2.2L | L4 | N/A | — |
| 1993 | Toyota | Corolla | FWD | Automatic | 1.6L | L4 | N/A | — |
| 1993 | Toyota | MR2 | — | — | 2.2L | L4 | N/A | From 11/93 |
| 1993 | Toyota | Paseo | — | Automatic | — | — | N/A | — |
| 1993 | Toyota | Tercel | — | — | 1.5L | L4 | N/A | — |
| 1992 | Toyota | Camry | — | Automatic | 2.2L | L4 | N/A | — |
| 1992 | Toyota | Paseo | — | Automatic | — | — | N/A | — |
| 1991 | Toyota | Camry | FWD | Automatic | 2.0L | L4 | N/A | — |
| 1990 | Toyota | Camry | FWD | Automatic | 2.0L | L4 | N/A | — |
| 1989 | Toyota | Camry | FWD | Automatic | 2.0L | L4 | N/A | — |
| 1988 | Toyota | Camry | — | Automatic | 2.0L | L4 | N/A | — |
| 1988 | Toyota | Celica | — | — | 2.0L | L4 | N/A | — |
| 1987 | Toyota | Camry | — | Automatic | — | — | N/A | — |
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