DTC P2183

DTC P2183  : ECT Sensor 2 Circuit Range/Performance Problem

DTC (PGM-FI)

1. Connector visual check:

   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

   -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

   DTC (PGM-FI)

   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

   -1. Enter the maintenance mode, then 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	deg.F
   	Less than 49	deg.C

   Data List

   Do the current condition(s) match the threshold?

   YES 

   Replace ECT sensor 2 .

   NO 

   Go to step 4.

4. Problem verification

   -1. Turn the vehicle to the OFF (LOCK) mode.

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

   -3. Record the ambient temperature.

   -4. Turn the vehicle to the ON mode.

   -5. Quickly observe the value of ECT SENSOR 2 in the DATA LIST with the HDS.

   Signal	Current conditions
   	Values	Unit
   ECT Sensor 2

   Data List

   Does the value of ECT SENSOR 2 differ 5.4 deg.F (3 deg.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

   -1. Enter the maintenance mode, then 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	deg.F
   	Less than 49	deg.C

   Data List

   Do the current condition(s) match the threshold?

   YES 

   Replace ECT sensor 1 .

   NO 

   ECT sensor 1 is OK at this time. Go to step 6.

6. 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	deg.F
   	Less than 49	deg.C

   Data List

   Do the current condition(s) match the threshold?

   YES 

   Replace ECT sensor 2 .

   NO 

   Go to step 7.

7. Problem verification

   -1. Turn the vehicle to the OFF (LOCK) mode.

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

   -3. Record the ambient temperature.

   -4. Turn the vehicle to the ON mode.

   -5. Quickly observe 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

   Data List

   -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 deg.F (3 deg.C) from the ambient temperature?

   YES 

   Replace the sensor that differed more than 5.4 deg.F (3 deg.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 .