po715 is the code for the neutral safety switch.
bad vehicle speed sensor
Code P0715 means:Input/Turbine Speed Sensor Circuit Malfunction
Trouble code P0715 means: Input/turbine speed sensor circuit malfunction
The speed sensor on a 1997 Escort is located on the transmission. It is right behind the bell housing. The Code PO715 means that this sensor needs to be fixed or replaced. This sensor can sometimes pop out of its plug, so do not purchase a new one until this is checked.
P0715
In researching other computer trouble codes, I ran across the site that is listed under "Related Links" down below the sponsor links.That site suggests the P0715 code relates to "Input/Turbine Speed Sensor Circuit Malfunction"
Code P0715 is triggered when the transmission's Input Speed Sensor isn't providing a reliable signal. Common Problems are a defective input/turbine speed sensor, defective shift solenoids, a defective engine coolant temperature sensor, a defective valve body, or dirty transmission fluid that restricts the hydraulic passages.
P0715 = Input/Turbine Speed Sensor A Circuit Malfunction. P0731 = Gear 1 ratio incorrect. P0734 = Gear 4 ratio incorrect. Sounds to me someone installed a used transmission that didn't match the original.
an input speed sensor on the transmission that will usually cause problems with 3rd or 4th gear, get yourself a manual for the location of the sensor and replace.
P0715 Trans Speed Shaft SensorP0715 Transmission Speed Shaft Sensor Circuit Malfunction Possible Causes TSS signal circuit open or shorted to ground TSS is damaged PCM has failed
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