Prius Throttle Pedal Connector - 6 Pin

The six pin connector that mates with a Toyota Prius throttle pedal, part 78120-47050. The plug you need to use a Prius pedal as the accelerator in a conversion.

The Prius pedal is a common choice in conversions because it is a proper automotive dual track pedal, made in enormous numbers and cheap to obtain. Without the mating connector it is an expensive paperweight.

It is a dual track pedal, and that matters for safety. Two independent potentiometers read the same pedal, and a controller compares them. If one track fails, drifts or shorts, the disagreement between them is detectable and the controller can refuse the signal instead of accepting a phantom throttle demand. That is why production cars use two tracks, and why using both is worth the extra wiring.

Key specifications

Pinout

Features

• Correct mating half for the Prius pedal, which has no common substitute
• Full six way, so both potentiometer tracks can be used
• Published pinout, so there is no probing to work out which wire is which

Compatibility

For the Toyota Prius throttle pedal, 78120-47050.

If your controller takes a three wire throttle signal, use pins 4, 5 and 6 only: one supply, one ground and one wiper. That works, but it gives up the redundancy the pedal was designed around, so prefer a controller that reads both tracks where you have the choice.

Curtis controllers conventionally expect roughly 0.8 V at rest and 3.6 V at full travel. Check your own controller's expected range and calibrate to the pedal rather than assuming.

In the box

• 1 x 6 pin throttle pedal connector

Downloads

No document is published for this connector. The pinout above is the working reference. For terminal specifications, contact us.