DTC P2183: ECT Sensor 2 Circuit Range/Performance Problem
- Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information (see GENERAL TROUBLESHOOTING INFORMATION ).
- If DTC P0111 is stored at the same time as DTC P2183, troubleshoot DTC P0111 first, then recheck for DTC P2183.
- Check for poor connections or loose terminals at ECT sensor 1 and ECT sensor 2.
Are the connections and terminals OK?
YES - Go to step 2.
NO - Repair the connections or terminals, then go to step 21.
- Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode.
- Check for Pending or Confirmed DTCs with the HDS.
Are DTC P1116 and P2183 indicated at the same time?
YES - Go to step 12.
NO - Go to step 4.
- Start the engine, and let it idle for 10 minutes.
- Check ECT SENSOR 2 in the DATA LIST with the HDS.
Is about 120°F (49°C) or less indicated?
YES - Replace ECT sensor 2 , then go to step 21.
NO - Go to step 6.
- Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.
- Allow ECT sensor 2 to cool to the ambient temperature.
- Note the ambient temperature.
- Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode.
- Quickly note the value of ECT SENSOR 2 in the DATA LIST with the HDS.
- Compare the value of ECT SENSOR 2 and the ambient temperature.
Does ECT SENSOR 2 differ 5.4°F (3°C) or more from the ambient temperature?
YES - Replace ECT sensor 2 , then go to step 21.
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/PCM. ■
- Start the engine, and let it idle for 10 minutes.
- Check ECT SENSOR 1 in the DATA LIST with the HDS.
Is about 120°F (49°C) or less indicated?
YES - Replace ECT sensor 1 , then go to step 21.
NO - Go to step 14.
- Check ECT SENSOR 2 in the DATA LIST with the HDS.
Is about 120°F (49°C) or less indicated?
YES - Replace ECT sensor 2 , then go to step 21.
NO - Go to step 15.
- Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.
- Allow ECT sensor 1 and ECT sensor 2 to cool to the ambient temperature.
- Note the ambient temperature.
- Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode.
- Quickly note the value of ECT SENSOR 1 and ECT SENSOR 2 in the DATA LIST with the HDS.
- Compare the value of ECT SENSOR 1 and the ambient temperature, and the value of ECT SENSOR 2 and the ambient temperature individually.
Does either sensor differ more than 5.4°F (3°C) from the ambient temperature?
YES - Replace the sensor that differed more than 5.4°F (3°C) from the ambient temperature. Refill the cooling system (see COOLANT REPLACEMENT ), then go to step 21.
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/PCM. ■
- Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode.
- Reset the ECM/PCM with the HDS.
- Do the ECM/PCM idle learn procedure (see ECM/PCM IDLE LEARN PROCEDURE ).
- Check for Pending or Confirmed DTCs with the HDS.
Is DTC P2183 indicated?
YES - Check for poor connections or loose terminals at ECT sensor 1, ECT sensor 2, and the ECM/PCM, then go to step 1.
NO - Troubleshooting is complete. If any other Pending or Confirmed DTCs are indicated, go to the indicated DTC's troubleshooting. ■