DTC P2183: ECT Sensor 2 Circuit Range/Performance Problem
- Before you troubleshoot, record all freeze data and any on-board snapshot, and review 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 24.
- Turn the ignition switch to ON (II).
- Check for Pending or Confirmed DTCs with the HDS.
Are DTC P1116 and P2183 indicated at the same time?
YES - Go to step 15.
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 115°F (46°C) or less indicated?
YES - Replace ECT sensor 2 (see ECT SENSOR 2 REPLACEMENT ), then go to step 24.
NO - Go to step 6.
- Turn the ignition switch to LOCK (0).
- Drain the coolant (see COOLANT REPLACEMENT ).
- Remove ECT sensor 2 (see ECT SENSOR 2 REPLACEMENT ).
- Allow ECT sensor 2 to cool to ambient temperature.
- Note the ambient temperature.
- Connect ECT sensor 2 to its 2P connector, but do not install it on the radiator.
- Turn the ignition switch to ON (II).
- Note the value of ECT SENSOR 2 quickly 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 (see ECT SENSOR 2 REPLACEMENT ), then go to step 24.
NO - Intermittent failure, the system is OK at this time. Reinstall ECT sensor 2 (see Check for poor connections or loose terminals at ECT sensor 1, ECT sensor 2, and the PCM. ■
- Start the engine, and let it idle for 10 minutes.
- Check ECT SENSOR 1 in the DATA LIST with the HDS.
Is about 118°F (48°C) or less, or 1.75 V or more indicated?
YES - Replace ECT sensor 1 (see ECT SENSOR 1 REPLACEMENT ), then go to step 24.
NO - Go to step 17.
- Let the engine idle for 10 minutes.
- Check ECT SENSOR 2 in the DATA LIST with the HDS.
Is about 115°F (46°C) or less indicated?
YES - Replace ECT sensor 2 (see ECT SENSOR 2 REPLACEMENT ), then go to step 24.
NO - Go to step 19.
- Turn the ignition switch to LOCK (0).
- Allow the sensors to cool to ambient temperature.Drain the coolant (see COOLANT REPLACEMENT ).
- Note the ambient temperature.Remove ECT sensor 1 (see ECT SENSOR 1 REPLACEMENT ), and ECT sensor 2 (see ECT SENSOR 2 REPLACEMENT ).
- Note the value of ECT SENSOR 1 and ECT SENSOR 2 quickly 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 one of the 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, then go to step 24.
NO - Intermittent failure, the system is OK at this time. Reinstall ECT sensor 1 (see and ECT connections or loose terminals a ECT sensor 2 (see ). Check for poor connections or loose terminals at ECT sensor 1, ECT sensor 2, and the PCM.
- Turn the ignition switch to ON (II).
- Reset the PCM with the HDS.
- Do 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 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.