DTC Troubleshooting: P2183
DTC P2183: ECT Sensor 2 Circuit Range/Performance Problem
NOTE:
Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information.
If DTC P0111 is stored at the same time as DTC P2183, troubleshoot DTC P0111 first, then recheck for DTC P2183.

DTC Description
Confirmed DTC
Pending DTC
Freeze Frame
P2183 ECT Sensor 2 Circuit Range/Performance Problem
      

1.
Connector visual check:

Connector visual check
?1.
Check for poor connections or loose terminals and terminals at these sensors:
ECT sensor 1
ECT sensor 2

Are the connections and terminals OK?

     
YES
     
     
     
Go to step 2.
     
NO
     
     
     
Repair the connections or terminals, then do the repair verification.
2.
PGM-FI system check:

PGM-FI system check
?1.
Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode.

?2.
Check for Pending or Confirmed DTCs with the HDS.
DTC Description
Confirmed DTC
Pending DTC
Freeze Frame
P1116 ECT Sensor 1 Circuit Range/Performance Problem
      
P2183 ECT Sensor 2 Circuit Range/Performance Problem
      

Are DTC P1116 and P2183 indicated at the same time?

     
YES
     
     
     
Go to step 5.
     
NO
     
     
     
Go to step 3.
3.
ECT sensor 2 performance check:

ECT sensor 2 performance check
?1.
Start the engine, and let it idle for 10 minutes.

?2.
Check the parameter(s) below with the HDS.
Signal
Threshold
Current conditions
Values
Unit
Values
Unit
ECT SENSOR 2
Less than 120
°F
    
Less than 49
°C

Do the current condition(s) match the threshold?

     
YES
     
     
     
     
NO
     
     
     
Go to step 4.
4.
Problem verification:

Problem verification
?1.
Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.

?2.
Allow ECT sensor 2 to cool to the ambient temperature.

?3.
Note the ambient temperature.

?4.
Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode.

?5.
Quickly note the value of ECT SENSOR 2 in the DATA LIST with the HDS.
Signal
Current conditions
Values
Unit
ECT SENSOR 2
    

Does the value of ECT SENSOR 2 differ 5.4 °F (3 °C) or more from the ambient temperature?

     
YES
     
     
     
     
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.?
5.
ECT sensor 1 performance check:

ECT sensor 1 performance check
?1.
Start the engine, and let it idle for 10 minutes.

?2.
Check the parameter(s) below with the HDS.
Signal
Threshold
Current conditions
Values
Unit
Values
Unit
ECT SENSOR 1
120
°F
    
49
°C

Do the current condition(s) match the threshold?

     
YES
     
     
     
     
NO
     
     
     
ECT sensor 1 is OK at this time. Go to step 6.
6.
ECT sensor 2 performance check:

ECT sensor 2 performance check
?1.
Let the engine idle for 10 minutes.

?2.
Check the parameter(s) below with the HDS.
Signal
Threshold
Current conditions
Values
Unit
Values
Unit
ECT SENSOR 2
Less than 120
°F
    
Less than 49
°C

Do the current condition(s) match the threshold?

     
YES
     
     
     
     
NO
     
     
     
Go to step 7.
7.
Problem verification:

Problem verification
?1.
Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.

?2.
Allow the sensors to cool to the ambient temperature.

?3.
Note the ambient temperature.

?4.
Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode.

?5.
Quickly note the value of ECT SENSOR 1 and ECT SENSOR 2 in the DATA LIST with the HDS.
Signal
Current conditions
Values
Unit
ECT SENSOR 1
    
ECT SENSOR 2
    

?6.
Compare the value of ECT SENSOR 1 to the ambient temperature, and the value of ECT SENSOR 2 to 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 do the repair verification.
     
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.?
Repair verification:

?1.
Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode.

?2.
Reset the PCM with the HDS.


?3.
Do the PCM idle learn procedure.

?4.
Check for Pending or Confirmed DTCs with the HDS.
DTC Description
Confirmed DTC
Pending DTC
Freeze Frame
P2183 ECT SENSOR 2 CIRCUIT RANGE/PERFORMANCE PROBLEM
      


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. ?