DTC P0116-00: ECT Sensor No.1 Circuit Range/Performance Problem: Notes
DETECTION CONDITION AND POSSIBLE CAUSE
| DTC P0116:00 |
ECT sensor No.1 circuit range/performance problem |
| DETECTION CONDITION |
- The PCM monitors the maximum value and minimum value of engine coolant temperature when the engine is started and 5 min
have been passed after leaving the vehicle 6 h or more
. If difference between maximum and minimum values of engine coolant temperature is below 6°C {43°F}
the PCM determines that there is an ECT sensor No.1 circuit range/performance problem.
Diagnostic support note
- This is a continuous monitor (engine cooling system).
- The check engine light illuminates if the PCM detects the above malfunction condition during the first drive cycle.
- FREEZE FRAME DATA (Mode 2)/Snapshot data is available.
- The DTC is stored in the PCM memory.
|
| FAIL-SAFE FUNCTION |
- |
| POSSIBLE CAUSE |
- ECT sensor No.1 connector or terminals malfunction
- PCM connector or terminals malfunction
- ECT sensor No.1 malfunction
- Thermostat malfunction
- PCM malfunction
|
| SYSTEM WIRING DIAGRAM |
- |
CAUTION:
- Verify the malfunction symptom according to not only the PID value but also the symptom troubleshooting.
RELATED PIDS
| Monitor item (Definition) |
Unit/Condition |
Condition/Specification (Reference) |
| ECT |
°C, °F |
|
| V |
- ECT is 20°C {68°F}: approx. 3.10 V
- ECT is 40°C {104°F}: approx. 2.16 V
- ECT is 60°C {140°F}: approx. 1.40 V
- ECT is 80°C {176°F}: approx. 0.87 V
- ECT is 100°C {212°F}: approx. 0.54 V
|