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Standard Ignition NS737 Neutral Safety Switch
| Brand | Standard Ignition NS737 |
|---|---|
| Connector Gender | Female |
| Material | Metal |
| Mounting Type | Bolt Mount |
| Terminal Gender | Male |
| Terminal Type | Blade & Pin |
| Fits | Toyota and Scion · 7 vehicles |
Bolt-mount design. Installs securely with a simple bolt-on attachment method.
Metal construction. Built with a durable metal body and metal-plastic finish.
12V switch. Made for reliable electrical control in a neutral safety application.
Cross-references Standard Ignition NS737, 8454052070 and CSW634 for the same application. See all 4.
Neutral Safety Switch for Toyota Corolla
Standard Ignition NS737 is a 12V neutral safety switch built for automatic transmission starting circuit control. It is a bolt-mount replacement with a rectangular female connector, 9 male terminals, and a metal/plastic black and silver finish for direct service on select Toyota Corolla applications.
Key Features
- Neutral safety switch for starting circuit and gear-position interlock function
- Fits 2014-2017 Toyota Corolla, N/A
- Fits 2019 Toyota Corolla, N/A
- Fits 2017 Toyota Corolla iM, N/A
- Fits 2016 Scion iM, N/A
- 12V electrical design with 1 rectangular female connector
- 9 male terminals with blade and pin terminal type
- Bolt mount attachment method for secure installation
- Metal and plastic construction with black and silver finish
Product Details
Standard Ignition NS737 is a replacement neutral safety switch for select Toyota Corolla, Corolla iM, and Scion iM models. It is used in the transmission start-in-park/neutral circuit to help the vehicle recognize the correct shift position before allowing engine cranking. This part cross-references OE-style part numbers 8454052070 and CSW634 for the same application. Standard Ignition NS737 is a practical service part for drivers and technicians replacing a worn or electrically inconsistent switch on compatible Toyota Corolla applications.
Common Issues This Part May Resolve
- No-crank condition when the shifter is in Park or Neutral
- Intermittent starting caused by a worn neutral safety switch
- Incorrect transmission range signal to the starting circuit
- Shifter position recognition problems during engine start
- Electrical contact wear at the transmission-mounted switch
Installation Notes and Tips
Verify connector style, terminal count, and bolt-mount layout before installation. Align the switch to the transmission linkage position exactly as removed, then confirm Park and Neutral start operation after installation. Because mounting hardware and gaskets are not listed, reuse or source any required service components separately as needed.
Quality Assurance
Standard Ignition supplies electrical service parts for OE-style replacement applications. NS737 is built with a metal and plastic housing and 12V electrical specification to match the listed vehicle fitment.
| Year | Make | Model | Transmission | Position | Notes |
|---|---|---|---|---|---|
| 2019 | Toyota | Corolla | Automatic CVT | N/A | — |
| 2017 | Toyota | Corolla | Automatic CVT | N/A | — |
| 2017 | Toyota | Corolla iM | Automatic CVT | N/A | — |
| 2016 | Scion | iM | Automatic CVT | N/A | — |
| 2016 | Toyota | Corolla | Automatic CVT | N/A | — |
| 2015 | Toyota | Corolla | Automatic CVT | N/A | — |
| 2014 | Toyota | Corolla | Automatic CVT | N/A | — |
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