DTC Troubleshooting: P2183
DTC P2183: ECT Sensor 2 Circuit Range/Performance Problem
NOTE:
Before you troubleshoot, 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
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.?
2.
PGM-FI system check:

PGM-FI system check
?1.
Turn the vehicle to the ON mode.

?2.
Check for Pending or Confirmed DTCs with the HDS.
DTC Description
Confirmed DTC
Pending DTC
P011A ECT Sensor 1 Circuit Range/Performance Problem
    
P2183 ECT Sensor 2 Circuit Range/Performance Problem
    

Are DTC P011A 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.

?2.
Hold the engine speed at 3,000 rpm without load (in neutral) until the radiator fan comes on, then let it idle.

?3.
Test-drive the vehicle for 5 minutes or more in the range of these recorded on-board snapshot parameters:
Engine Speed
Vehicle Speed
ECT Sensor 1
Signal
Current conditions
Values
Unit
Engine Speed
    
Vehicle Speed
    
ECT Sensor 1
    

?4.
Monitor the OBD STATUS for DTC P2183 with the HDS.
DTC Description
OBD STATUS
P2183 ECT Sensor 2 Circuit Range/Performance Problem
  

Does the HDS indicate FAILED?

     
YES
     
     
     
     
NO
     
     
     
If the HDS indicates PASSED, go to step 4. If the HDS indicates NOT COMPLETED, keep driving until a result comes on.
4.
Problem verification:

Problem verification
?1.
Turn the vehicle to the OFF (LOCK) mode.

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

?3.
Note the ambient temperature.

?4.
Turn the vehicle to 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
     
     
     
The failure is duplicated. Replace ECT sensor 2.?
     
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. If the on-board snapshot of this DTC is recorded, try to reproduce the failure under the same conditions with the on-board snapshot.?
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
Less than 120
°F
    
Less than 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 vehicle to the OFF (LOCK) mode.

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

?3.
Note the ambient temperature.

?4.
Turn the vehicle to 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.?
     
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. If the on-board snapshot of this DTC is recorded, try to reproduce the failure under the same conditions with the on-board snapshot.?