DTC Troubleshooting: P0119
DTC P0119: ECT Sensor 1 Circuit Out of Range
NOTE:
Before you troubleshoot, review the general troubleshooting information.
Check for damage or corrosion at ECT sensor 1 connector terminals.

DTC Description
Confirmed DTC
Pending DTC
P0119 ECT Sensor 1 Circuit Out of Range
    

1.
Problem verification:

Problem verification
?1.
Turn the vehicle to the ON mode.

?2.
Clear the DTC with the HDS.


?3.
Start the engine.

?4.
Hold the engine speed at 3,000 rpm without load (in neutral) until the radiator fan comes on, then let it idle.

?5.
Check for Pending or Confirmed DTCs with the HDS.
DTC Description
Confirmed DTC
Pending DTC
P0119 ECT Sensor 1 Circuit Out of Range
    

Is DTC P0119 indicated?

     
YES
     
     
     
The failure is duplicated. Go to step 2.
     
NO
     
     
     
Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at ECT sensor 1 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.?
2.
Shorted wire check (TW line):

Shorted wire check (TW 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 connectors.
ECT sensor 1 2P connector
PCM connector No. 1 (96P)

?4.
Check for continuity between test points 1 and 2.
Test condition
Vehicle OFF (LOCK) mode
 
ECT sensor 1 2P connector: disconnected
 
PCM connector No. 1 (96P): disconnected
Test point 1
ECT sensor 1 2P connector (female terminals) No. 2:
Test point 2
Body ground


Is there continuity?

     
YES
     
     
     
Repair a short in the TW wire between PCM connector No. 1 terminal No. 49 and ECT sensor 1.?
     
NO
     
     
     
The TW wire is not shorted. Go to step 3.
3.
Open wire check (TW line):

Open wire check (TW line)
?1.
Check for continuity between test points 1 and 2.
Test condition
Vehicle OFF (LOCK) mode
 
ECT sensor 1 2P connector: disconnected
 
PCM connector No. 1 (96P): disconnected
Test point 1
ECT sensor 1 2P connector (female terminals) No. 2:
Test point 2
PCM connector No. 1 (96P) No. 49


Is there continuity?

     
YES
     
     
     
The TW wire is OK. Go to step 4.
     
NO
     
     
     
Repair an open in the TW wire between PCM connector No. 1 terminal No. 49 and ECT sensor 1.?
4.
Open wire check (SG3 line):

Open wire check (SG3 line)
?1.
Check for continuity between test points 1 and 2.
Test condition
Vehicle OFF (LOCK) mode
 
ECT sensor 1 2P connector: disconnected
 
PCM connector No. 1 (96P): disconnected
Test point 1
ECT sensor 1 2P connector (female terminals) No. 1:
Test point 2
PCM connector No. 1 (96P) No. 91


Is there continuity?

     
YES
     
     
     
The SG3 wire is OK. Replace ECT sensor 1.?
     
NO
     
     
     
Repair an open in the SG3 wire between PCM connector No. 1 terminal No. 91 and ECT sensor 1.?