| 
  • If you are citizen of an European Union member nation, you may not use this service unless you are at least 16 years old.

  • Whenever you search in PBworks, Dokkio Sidebar (from the makers of PBworks) will run the same search in your Drive, Dropbox, OneDrive, Gmail, and Slack. Now you can find what you're looking for wherever it lives. Try Dokkio Sidebar for free.

View
 

Toyota Speed Sensors

This version was saved 10 years, 5 months ago View current version     Page history
Saved by wilbo666
on June 24, 2012 at 6:03:13 pm
 


 

Introduction

This page documents Toyota speed sensors.

 

There are two main types of Toyota speed / position sensor, '3 Wire' and '2 Wire'.  These are described in more detail below.

 

3 Wire Speed Sensor

The 3 wire speed sensor output signal is a square wave signal that connects between the input power source (battery voltage) and the power ground.  The speed sensor outputs 4 pulses (High to Low voltage transitions) for each speed sensor revolution.

 

Most Toyota 3 wire speed sensors have the below (90980-11143) plug connection, however it is worth noting that there are some 20 pulse / revolution Toyota speed sensors that have a different (triangular) plug connection.  Note, the below plug (90980-11143) connects to the speed sensor, the below plug image does not show the pin out of the sensor, it shows the pin out of the plug that connects to the speed sensor.

 

 

 

Pin Symbol Definition Input / Output
(To Sensor = Input)
(From Sensor = Output)
Description
1 IGN
3 Wire, Speed Sensor Power (Ignition Switched) Input This pin is used to supply ignition switched power to the speed sensor.  This pin needs to be connected to an ignition switched power source that supplies battery voltage when the ignition is in the RUN and CRANK Positions.
2   3 Wire, Speed Sensor Ground Input This pin is used to supply the power ground for the speed sensor.  This pin needs to be connected to ground.
3 SP1 3 Wire, Speed Sensor Output Output

This pin is used to output the speed signal.  This pin most commonly connects to the dash cluster, however in some arrangements this can vary.

The 3 wire speed sensor output signal is a square wave signal that connects between the input power source (battery voltage) and the power ground.  The speed sensor outputs 4 pulses (High to Low voltage transitions) for each speed sensor revolution.

 

 

 

 

2 Wire Speed Sensor

The 2 wire speed sensor output signal is a variable reluctance (also refereed to as 'reluctor') type signal.  The speed sensor outputs an AC voltage waveform transition each time the speed sensor passes past a pickup tooth.

 

 

Most Toyota 3 wire speed sensors have the below (90980-11143) plug connection, however it is worth noting that there are some 20 pulse / revolution Toyota speed sensors that have a different (triangular) plug connection.  Note, the below plug (90980-11143) connects to the speed sensor, the below plug image does not show the pin out of the sensor, it shows the pin out of the plug that connects to the speed sensor.

 

 

 

 

 

References

Autoshop101: 36 Sensors#6 - Speed Sensors with questions.pdf

 

 

Views:

Comments (0)

You don't have permission to comment on this page.