P0607 is Control Module Performance. Its an internal fault in the PCM. DTC P0601, P0604, P0606, P0607 or P2610 sets when the powertrain control module (PCM) has determined that the control module has an internal fault. The PCM performs continuous self checks of all internal circuits. If the status of an internal memory circuit within the control module is incorrect, a DTC P0601 or P0604 sets. If the inputs or outputs from the 2 central processing units (CPU) within the control module deviate from the standard level, a DTC P0606 or P0607 sets. The control module has several internal clock or timer circuits. The DTC P2610 diagnostic monitors the internal timer circuit responsible for the ignition OFF operation of the evaporative emission (EVAP) system vacuum leak pump. If the there is an error in the control module timer, a DTC P2610 sets. The diagnostic on this code is pretty basic, replace the pcm. Post back with any other questions.
Monday, March 23rd, 2009 AT 4:55 PM