DTC P0125: ECT Sensor 1 Malfunction/Slow Response Honda Civic VIII рестайлинг

Note. Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information (see GENERAL TROUBLESHOOTING INFORMATION ).

1. Start the engine, and let it idle for 5 minutes or more.
2. Check ECT SENSOR 1 in the DATA LIST with the HDS. Is about 0°F (-18°C) or less indicated? YES -Check for poor connections or loose terminals at ECT sensor 1, ECT sensor 2, and the ECM. If the connections and terminals are OK, replace the ECT sensor 1 (see «ECT SENSOR 1 REPLACEMENT»(ref-355119-S10202844422010012000000) ), then go to step 7 . NO -Go to step 3.
3. Turn the ignition switch to LOCK (0).
4. Allow the engine to cool to 104°F (40°C) or less.
5. Start the engine, and let it idle until ECT SENSOR 1 goes up to about 158°F (70°C). Does ECT SENSOR 2 also show about 158°F (70°C)? YES -Go to step 6. NO -Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at ECT sensor 1, ECT sensor 2, and the ECM.
6. Check the thermostat (see «THERMOSTAT TEST»(ref-255495-S42793920822007060300000) ). Is the thermostat OK? YES -Check for poor connections or loose terminals at ECT sensor 1, ECT sensor 2, and the ECM. If the connections and terminals are OK, replace the ECT sensor 1 (see «ECT SENSOR 1 REPLACEMENT»(ref-355119-S10202844422010012000000) ), then go to step 7. NO -Replace the thermostat (see «THERMOSTAT REPLACEMENT»(ref-255495-S06354090382007060300000) ), then go to step 7.
7. Turn the ignition switch to ON (II).
8. Reset the ECM with the HDS.
9. Turn the ignition switch to LOCK (0).
10. Allow the engine to cool to 104°F (40°C) or less.
11. Start the engine, and let it idle until ECT SENSOR 1 goes up to about 158°F (70°C). Does ECT SENSOR 2 also show about 158°F (70°C)? YES -Go to step 1 and recheck. NO -Troubleshooting is complete.