Re: XCT 500 errors- High Throttle Input Under
C1 Pin-1 is an output voltage from the controller to the F/R switch. If the F/R is in F, the voltage is returned to controller on Pin-3 and on Pin-2 if it is in R.
The Forward Switch Input was flagged as "ON" on the monitor screen picture you posted, so you had voltage on Pin-1 when that screenshot was captured.
Do you have FULL battery pack voltage (38.2V on monitor screen) on both C1 Pins 4 and 5, as well as all four pins of C3 ????
The wire color was changed to grey in later years.
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