spoofing a Toyota VSS output
spoofing a Toyota VSS output
(OP)
Does anyone know what the 4AGE ECU sees from the vehicle speed sensor? I have been told the sensor is a simple reed switch. I am installing a Toyota engine in another vehicle, and the recipient transmission/speedo drive is mechanical.
thanks in advance, steve
thanks in advance, steve





RE: spoofing a Toyota VSS output
RE: spoofing a Toyota VSS output
Mike Halloran
Pembroke Pines, FL, USA
RE: spoofing a Toyota VSS output
Without knowing the vintage of the vehicle, no way to answer for certain. At some point they switched over to Hall effect sensors... guessing mostly likely with OBDII in late '96/97.
If you see three wires going to the speed sensor, you can assume it is a Hall effect sensor.. On the speedometer if there is no mechanical speedometer cable drive, it is definitely is not a reed switch.
If two wires, probably a reed switch.. The reed switches can be easily identified by connecting an ohm meter to the two wires and rotating the transmission output shaft or speedometer shaft (if there is one).. You will see it pulse open and closed.
You really need the factory wiring manuals to doing this kind of transplant..
Or you might try posting your question here in the appropriate vehicle forum .. http://www.toyotanation.com/forum/
RE: spoofing a Toyota VSS output
RE: spoofing a Toyota VSS output
above link may help you to know more.
RE: spoofing a Toyota VSS output