DTC P2183: ECT Sensor 2 Circuit Range/Performance Problem

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2014 Honda Ridgeline, 2013 Honda Ridgeline, 2012 Honda Ridgeline, 2011 Honda Ridgeline, and 2010 Honda Ridgeline. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

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 the 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).
Check for Pending DTCs 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 (see ECT SENSOR 1 REPLACEMENT ), then Go to step 21.

NO -Go to step 6.
Turn the ignition switch to LOCK (0).
Allow ECT sensor 2 to cool to ambient temperature.
Note the ambient temperature.
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 21.

NO -Intermittent failure, the system is OK at this time. Reinstall ECT sensor 2 (see ECT SENSOR 2 REPLACEMENT ). 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 120°F (49°C) or less indicated?

YES -Replace ECT sensor 1 (see ECT SENSOR 1 REPLACEMENT ), then Go to step 21.

NO -Go to step 14.
Let the engine idle 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 (see ECT SENSOR 2 REPLACEMENT ), then Go to step 21.

NO -Go to step 16.
Turn the ignition switch to LOCK (0).
Allow the sensors to cool to ambient temperature.
Note the ambient temperature.
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 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, 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 PCM. ■
Turn the ignition switch to ON (II).
Reset the PCM with the HDS.
Do the PCM idle learn procedure (see PCM IDLE LEARN PROCEDURE ).
Check for Pending DTCs 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 DTCs or Confirmed DTCs are indicated, Go to the indicated DTC's troubleshooting. ■