LEMON Manuals
: Even more car manuals for everyone: 1960-2025
Home
>>
Toyota
>>
2003
>>
Sequoia SR5, 4WD
>>
Repair and Diagnosis
>>
Engine Performance
>>
System
>>
Engine Control System Self Diagnostics
>>
Diagnostic Tests
>>
DTC P0116: Engine Coolant Temperature Sensor Circuit Range/Performance Or P0125: Insufficient Coolant Temperature For Closed Loop Fuel Control
>>
Circuit Description
April 5, 2026:
LEMON Manuals is launched!
Read the announcement.
Circuit Description
Engine Coolant Temperature (ECT) sensor is a thermistor which monitors engine coolant temperature.