I received this from a visitor to our LIPOG.org website: "Kees' I did a search in the Prius manual and could not find these codes. Any help for this fellow Prius owner?
[attachmentid=12388] 58-42 refers to Map Disc Error - Data cannot be read for a specified time due to scratches or dirt on disc surface or insertion of music CD. Inspect disc and replace if necessary. Visually check disc surface and wipe it with soft cloth. [attachmentid=12387] 01-DE 178-F6-2 refers to Slave Reset (Momentary Interruption) - After engine is started, slave component was disconnected from system. Check harness for power supply of component shown by auxiliary code. Check harness for communication system of component shown by auxiliary code. 01 - Logical Address (Communication control) DE - DTC 178 - Physical Address (Navigation ECU) F6 - Connection Confirmation Number 2 - Number of occurrence The slave component in this case is the NAV ECU. Unless the occurrence keeps increasing, there is nothing to worry about.
