ECT Sensor Rationality Monitor
WARNING: This page is about a different car, the 2006 Suzuki XL-7. However, it is still accessible from the selected car via links, so may be relevant.
Operation
ECT SENSOR RATIONALITY MONITOR OPERATION
| DTCs | P0116 / P0125 |
| Monitor execution | Once per driving cycle |
| Sensors / components OK | ECT (P0116, P0125), IAT, MAP (P0125) |
| Monitoring Duration |
Enable conditions
ECT SENSOR RATIONALITY MONITOR ENABLE CONDITIONS
| Parameter | Minimum | Maximum |
|---|---|---|
| P0116 | ||
| Engine coolant temp. at engine start | 65 (149) °C (°F) | |
| Warm up counter | 61440 counts | |
| Driving duration time (warm up counter > 61440) | 60 s | |
| Idle duration time | 164 s | |
| Intake air temp. | -8 (17) °C (°F) | |
| P0125 | ||
| MAF | 5 g/s | |
| Engine coolant temp. at engine start | 20 (68) °C (°F) | |
| Intake air temp. | -8 (17) °C (°F) | |
| Vehicle speed | 3 mph | |
Typical malfunction thresholds
ECT SENSOR RATIONALITY MONITOR TYPICAL MALFUNCTION THRESHOLDS
| P0116 |
| ECT change during enable condition < 8 bit (39 mV) |
| P0125 |
| Time to reach CL enable temperature (20 (68) °C (°F)) 85 - 1800 s (according to ECT at starting) |