DTC P0606:00: Notes

DTC P0606:00	PCM processor error
DETECTION CONDITION	The PCM internal CPU malfunction. Abnormal voltage applied to PCM ignition switch terminal. Diagnostic support note This is a continuous monitor (CCM). The MIL illuminates if the PCM detects the above malfunction condition during first drive cycle. FREEZE FRAME DATA (Mode 2)/Snapshot data is available. The DTC is stored in the PCM memory.
POSSIBLE CAUSE	Voltage of 1.0 V or more is applied to PCM ignition switch terminal even though ignition switch is off. PCM internal CPU malfunction