Speedo signal wires
#2
RX-7 Bad Ass
iTrader: (55)
Trace the wires in the diagram, the speed sensor wire will feed into the ECU and the speedo. The other is probably a 5v reference.
Dale
Dale
#6
~17 MPG
iTrader: (2)
In the OEM setup, the speed sensor in the transmission connects directly to the dash cluster, not to the ECU. The dash cluster essentially duplicates the vehicle speed signal, sending a nice digital 0-5V signal to the stock ECU on pin 1M. If you still have the OEM dash installed, it will probably be easier to get the wire at the ECU connector.
In the wiring diagram, the ECU pin 1M is shown on page B-1d (Green/Red wire) and the Instrument cluster pin 3E is shown on pin C-1a (Green/Red wire).
In the wiring diagram, the ECU pin 1M is shown on page B-1d (Green/Red wire) and the Instrument cluster pin 3E is shown on pin C-1a (Green/Red wire).
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