2005 Toyota Prius Check engine light on, mechanic says code is P01121
Mechanic says this code, P01121, means "coolant flow control valve." I have not fixed this. Does anyone
- know about a reader for the OBDII port (mechanic charged a lot for reading the code)
- know how to interpret these codes
- know if "coolant flow control valve" is serious? the car works fine, but the check engine light is almost always illuminated
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Had same problem. 2005 Prius. Fixed under recall. 2nd time fixed myself. Check "priuschat.com" for instructions.
door Mark