Toyota Corolla (E120) 2002–2008 Repair Manual / Diagnostics / Sfi system / Engine coolant temperature circuit
Toyota Corolla (E120): Engine coolant temperature circuit
Dtc p0115 engine coolant temperature circuit
Dtc p0117 engine coolant temperature circuit low input
Dtc p0118 engine coolant temperature circuit high input
Other materials:
System description
The ecm uses signals from the vehicle speed sensor and crankshaft position
sensor to detect the actual
gear position (1st, 2nd, 3rd or o/d gear).
Then the ecm compares the actual gear with the shift schedule in the ecm memory
to detect the mechanical
trouble of the shift solenoid valves, th ...
When stopping the engine with the shift lever in a position other than P (vehicles
with a continuously variable transmission)
If the engine is stopped with the shift lever in a position other than P, the
engine switch will not be turned off but instead be turned to ACCESSORY mode. Perform
the following procedure to turn the switch off:
1 Check that the parking brake is set.
2 Shift the shift lever to P.
► Vehi ...
Circuit description
When the brake pedal is depressed, the stop lamp switch assy sends a signal
to the cruise control ecu assy.
When the cruise control ecu assy receives this signal, it cancels the cruise
control.
A fail–safe function is provided so that cancel functions normally, even if
there is a malfu ...