DTC P2182 (1.5 L Engine)

DTC P2182  : ECT Sensor 2 Out of Range

NOTE:  Before you troubleshoot, review the general troubleshooting information .

DTC (PGM-FI)

1. Problem verification 1

   -1. Turn the vehicle to the ON mode.

   -2. Check the parameter (s) below with the HDS.

   Signal	Threshold		Current conditions
   	Values	Unit	Values	Unit
   ECT Sensor 2 Voltage	0.14 or less	V

   Do the current condition (s) match the threshold?

   YES 

   The failure is duplicated. Go to step 3.

   NO 

   Go to step 2.

2. Problem verification 2

   -1. Check the parameter (s) below with the HDS.

   Signal	Threshold		Current conditions
   	Values	Unit	Values	Unit
   ECT Sensor 2 Voltage	4.99 or more	V

   Do the current condition (s) match the threshold?

   YES 

   The failure is duplicated. Go to step 5.

   NO 

   Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at 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 .

3. Determine possible failure area (ECT sensor 2, others)

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

   -2. Disconnect the following connector.

   ECT Sensor 2 2P connector

   -3. Turn the vehicle to the ON mode.

   -4. Check the parameter (s) below with the HDS.

   Signal	Threshold		Current conditions
   	Values	Unit	Values	Unit
   ECT Sensor 2 Voltage	0.14 or less	V

   Do the current condition (s) match the threshold?

   YES 

   Go to step 4.

   NO 

   Replace ECT sensor 2 .

4. Shorted wire check (TW2 SENSOR/TW2 line)

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

   -2. Jump the SCS line with the HDS, and wait more than 1 minute.

   -3. Disconnect the following connector.

   PCM connector E (80P)

   -4. Check for continuity between test points 1 and 2.

   Test condition	Vehicle OFF (LOCK) mode
   	ECT Sensor 2 2P connector: disconnected
   	PCM connector E (80P): disconnected
   Test point 1	ECT sensor 2 2P connector (female terminals) No. 2:
   Test point 2	Body ground

   Courtesy of HONDA, U.S.A., INC.

   Is there continuity?

   YES 

   Repair a short in the TW2 SENSOR/TW2 wire between the PCM (E54) and ECT sensor 2.

   NO 

   The TW2 SENSOR/TW2 wire is OK. Check for any authorized service information related to the DTCs or symptoms you are troubleshooting, or substitute a known-good PCM .

5. Determine possible failure area (ECT sensor 2, others)

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

   -2. Disconnect the following connector.

   ECT sensor 2 2P connector

   -3. Connect terminals A and B with a jumper wire.

   Terminal A	ECT sensor 2 2P connector (female terminals) No. 1:
   Terminal B	ECT sensor 2 2P connector (female terminals) No. 2:

   Courtesy of HONDA, U.S.A., INC.

   -4. Turn the vehicle to the ON mode.

   -5. Check the parameter (s) below with the HDS.

   Signal	Threshold		Current conditions
   	Values	Unit	Values	Unit
   ECT Sensor 2 Voltage	4.99 or more	V

   Do the current condition (s) match the threshold?

   YES 

   Go to step 6.

   NO 

   Replace ECT sensor 2 .

6. Determine possible failure area (TW2 SENSOR/TW2 line, others)

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

   -2. Remove the jumper wire from the ECT sensor 2 2P connector.

   -3. Turn the vehicle to the ON mode.

   -4. Measure the voltage between test points 1 and 2.

   Test condition	Vehicle ON mode
   	ECT sensor 2 2P connector: disconnected
   Test point 1	ECT sensor 2 2P connector (female terminals) No. 2:
   Test point 2	Body ground

   Courtesy of HONDA, U.S.A., INC.

   Is there about 5.0 V?

   YES 

   TW2 SENSOR/TW2 line is OK, go to step 7.

   NO 

   Go to step 8.

7. Open wire check (SG6 line)

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

   -2. Jump the SCS line with the HDS, and wait more than 1 minute.

   -3. Disconnect the following connector.

   PCM connector E (80P)

   -4. Check for continuity between test points 1 and 2.

   Test condition	Vehicle OFF (LOCK) mode
   	ECT sensor 2 2P connector: disconnected
   	PCM connector E (80P): disconnected
   Test point 2	ECT sensor 2 2P connector (female terminals) No. 1:
   Test point 1	PCM connector E (80P) No. 45

   Courtesy of HONDA, U.S.A., INC.

   Is there continuity?

   YES 

   The SG6 line is OK. Check for any authorized service information related to the DTCs or symptoms you are troubleshooting, or substitute a known-good PCM .

   NO 

   Repair an open in the SG6 line between the PCM (E45) and ECT sensor 2.

8. Open wire check (TW2 SENSOR/TW2 line)

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

   -2. Jump the SCS line with the HDS, and wait more than 1 minute.

   -3. Disconnect the following connector.

   PCM connector E (80P)

   -4. Check for continuity between test points 1 and 2.

   Test condition	Vehicle OFF (LOCK) mode
   	ECT sensor 2 2P connector: disconnected
   	PCM connector E (80P): disconnected
   Test point 1	ECT sensor 2 2P connector (female terminals) No. 2:
   Test point 2	PCM connector E (80P) No. 54

   Courtesy of HONDA, U.S.A., INC.

   Is there continuity?

   YES 

   The TW2 SENSOR/TW2 wire is OK. Check for any authorized service information related to the DTCs or symptoms you are troubleshooting, or substitute a known-good PCM .

   NO 

   Repair an open in the TW2 SENSOR/TW2 wire between the PCM (E54) and ECT sensor 2.