I've been having this trouble for some time now. I could be driving at any speed when the transmission will drop down a gear and stay there. If I restart the engine the tranny will shift properly until this problem reoccurs. I have codes too. P1529, I have no idea what that one is, I was told it is a manufacturer specific code. P0720 "The PCM has determined that a malfunction exists in the electrical circuit for the output speed sensor" . P0715 "The PCM has determined that a malfunction exists in the input circuit for the turbine speed sensor." Please help this is driving me insane.
- posted
17 years ago