How Should the Neutral Safety Switch Be Checked and Adjusted on Toyota Supra?

If the engine is started while the gear shift lever is in any position other than Park or Neutral, or if back-up lights do not light up when the shift lever is moved to R, the neutral start control switch should be checked and readjusted; to do which, the car has to be lifted off the ground supported on jack stands. On models from 1979 through 1984, place the shift lever in Neutral and absent the switch bolt. The groove in the end of the control shaft has to be placed vertically and lined up with the neutral basic line on the switch; if not then turn the switch round to match it, then put a bolt in. For models from 1985 and later, set the transmission shift lever in the Neutral and disconnect the electrical connector to the switch and fasten an ohmmeter across terminals N and B which are scored on the connector. Remove the nut and or bolt screwing the neutral start switch bolt and rotate the switch until you find a connection between the N or B terminals or align the rubber flap on the switch bar with the neutral BASIC line and tighten the bolt.

Genuine Toyota Supra Neutral Safety Switch

Transmission Neutral Safety Switch

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5 Neutral Safety Switches found

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Toyota Supra Neutral Start Switch Assembly
Part Number: 84540-30270
$148.23 MSRP: $210.73
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Ships in 1-3 Business Days
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Product Specifications
- Other Name: Switch Assy, Neutral Start; Neutral Safety Switch, Range Sensor
- Warranty: This genuine Toyota part is covered by warranty.
Fits the following Vehicles:
- 1993-1998 Toyota Supra | 6 Cyl 3.0L | 2JZGE, 2JZGTE; JZA80L-AJFVZA, JZA80L-AJFVZK, JZA80L-AJMVFA, JZA80L-AJPVFA, JZA80L-AJPVZA, JZA80L-AJPVZK, JZA80L-ALFVZA, JZA80L-ALMVFA, JZA80L-ALPVFA, JZA80L-ALPVZA
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Toyota Supra Clutch Start Switch Assembly
Part Number: 84520-24010
$67.01 MSRP: $94.46
You Save: $27.45 (30%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Switch Assy, Clutch Start
- Warranty: This genuine Toyota part is covered by warranty.
Fits the following Vehicles:
- 1993-1998 Toyota Supra | 6 Cyl 3.0L | 2JZGE, 2JZGTE; JZA80L-AJFVZA, JZA80L-AJFVZK, JZA80L-AJMVFA, JZA80L-AJPVFA, JZA80L-AJPVZA, JZA80L-AJPVZK, JZA80L-ALFVZA, JZA80L-ALMVFA, JZA80L-ALPVFA, JZA80L-ALPVZA
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Toyota Supra Neutral Start Switch Assembly
Part Number: 84540-30240
Product Specifications
- Other Name: Switch Assy, Neutral Start
- Replaced by: 84540-30241
- Warranty: This genuine Toyota part is covered by warranty.
Fits the following Vehicles:
- 1986-1992 Toyota Supra | 6 Cyl 3.0L | 7MGE, 7MGTE; MA70L-BJMVFA, MA70L-BJMVFK, MA70L-BJMVZA, MA70L-BJMVZK, MA70L-BJPVFA, MA70L-BJPVFK, MA70L-BJPVZA, MA70L-BJPVZK, MA70L-BLMVFA, MA70L-BLMVFK, MA70L-BLMVZA, MA70L-BLMVZK, MA70L-BLPVFA, MA70L-BLPVFK, MA70L-BLPVZA, MA70L-BLPVZK
View related parts
Toyota Supra Neutral Start Switch Assembly
Part Number: 84540-30241
Product Specifications
- Other Name: Switch Assy, Neutral Start; Neutral Safety Switch
- Replaces: 84540-30240
- Warranty: This genuine Toyota part is covered by warranty.
Fits the following Vehicles:
- 1986-1992 Toyota Supra | 6 Cyl 3.0L | 7MGE, 7MGTE; MA70L-BJMVFA, 7MGTE; MA70L-BJMVZA, MA70L-BJMVFK, MA70L-BJMVZA, MA70L-BJMVZK, MA70L-BJPVFA, MA70L-BJPVFK, MA70L-BJPVZA, MA70L-BJPVZK, MA70L-BLMVFA, MA70L-BLMVFK, MA70L-BLMVZA, MA70L-BLMVZK, MA70L-BLPVFA, MA70L-BLPVFK, MA70L-BLPVZA, MA70L-BLPVZK
View related parts
Toyota Supra Clutch Start Switch Assembly
Part Number: 84520-17020
Product Specifications
- Other Name: Switch Assy, Clutch Start
- Warranty: This genuine Toyota part is covered by warranty.
Fits the following Vehicles:
- 1986-1992 Toyota Supra | 6 Cyl 3.0L | 7MGE, 7MGTE; MA70L-BJMVFA, MA70L-BJMVFK, MA70L-BJMVZA, MA70L-BJMVZK, MA70L-BJPVFA, MA70L-BJPVFK, MA70L-BJPVZA, MA70L-BJPVZK, MA70L-BLMVFA, MA70L-BLMVFK, MA70L-BLMVZA, MA70L-BLMVZK, MA70L-BLPVFA, MA70L-BLPVFK, MA70L-BLPVZA, MA70L-BLPVZK

Toyota Supra Neutral Safety Switch

The purpose of a Neutral Safety Switch is to prevent the engine from starting unless the transmission is in either park or neutral. This can protect drivers or bystanders from an unexpected movement of the vehicle. In the case of the Toyota Supra, it is designed to perform this function. Transmission designs may have changed, but the Neutral Safety Switch has the same function. It is nothing more than an electrical gate. The clutch switch and Neutral Safety Switch complete the starter circuit. At the heart of the Toyota drivetrain electrical circuit is this protective link. In other words, the system will not send power to the starter motor, thus preventing the vehicle from lurching forward if the lever is left in drive. All Supra generations equipped with an automatic transmission work by a simplified logic path, and even the manuals have a clutch-position version that works on the same principle, so the driver cannot crank the engine without applying the pedal. The Neutral Safety Switch is like a referee demanding the ignition key and the drivetrain to be in neutral or park before the action can begin. The Neutral Safety Switch reacts quickly and is mechanically simple. It acts as a crucial last line of defense behind seatbelts and brakes. This enhances Toyota's resolve to provide predictable, controllable starts in every Supra built for the road.

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Toyota Supra Neutral Safety Switch Parts Questions & Experts Answers

Neutral Start Switch Assembly
84540-30240
Q: How Should the Neutral Safety Switch Be Checked and Adjusted on Toyota Supra?
A:
If the engine is started while the gear shift lever is in any position other than Park or Neutral, or if back-up lights do not light up when the shift lever is moved to R, the neutral start control switch should be checked and readjusted; to do which, the car has to be lifted off the ground supported on jack stands. On models from 1979 through 1984, place the shift lever in Neutral and absent the switch bolt. The groove in the end of the control shaft has to be placed vertically and lined up with the neutral basic line on the switch; if not then turn the switch round to match it, then put a bolt in. For models from 1985 and later, set the transmission shift lever in the Neutral and disconnect the electrical connector to the switch and fasten an ohmmeter across terminals N and B which are scored on the connector. Remove the nut and or bolt screwing the neutral start switch bolt and rotate the switch until you find a connection between the N or B terminals or align the rubber flap on the switch bar with the neutral BASIC line and tighten the bolt.