Tcm Help Please!

[98ekSIRK]

i was checkin my codes on my 98 civic dx auto by using the jumper wire i have a code 70 on the check engine and a code 15 on D4 does anyone know the TCM codes automatic trans codes

[95 ZC LX]

trans code 15 (po715) is for the mainshaft speed sensor circuit, doesnt mean it is an electrical problem though, it could be a mechanical problem that the sensor is doing its job by telling the pcm somethings wrong.

if you have a dvom, you can check the resistance in the sensor, should be between 400-600 ohms, if its good, and your wiring is good, may need a trans...