Is the PCM and ECU the same thing?Where is the PCM located on 1997 Honda accord?Code P0715 comes up. Mainshaft speed sensor checks out ok(400-600 ohms). Next step is check connector at PCM. Transmission shifts hard or irraticly after it warms up.
DTC P0715 (FLASH CODE 15) doesn't always mean an electrical problem in mainshaft speed sensor or circuit; this DTC can also be caused by a mechanical problem in transaxle. Ecm, ecu and pcm are all about the same see pic for location