Monitor Strategy
WARNING: This page is about a different car, the 2009 Toyota Prius. However, it is still accessible from the selected car via links, so may be relevant.
Potentiometer detection
MONITOR STRATEGY
| Related DTCs | P1121: Coolant flow control valve position sensor circuit stuck |
| Required sensors/components | Main: Water valve Related: CHS tank outlet temperature sensor |
| Frequency of operation | Once per driving cycle |
| Duration | 20 seconds |
| MIL operation | 2 driving cycle |
| Sequence of operation | None |
Tank outlet coolant temperature detection
MONITOR STRATEGY
| Related DTCs | P1121: Coolant flow control valve position sensor circuit stuck |
| Required sensors/components | Main: Water valve Related: CHS tank outlet temperature sensor |
| Frequency of operation | Once per driving cycle |
| Duration | 10 seconds |
| MIL operation | 2 driving cycle |
| Sequence of operation | None |