DTC Troubleshooting: P0114
DTC P0114: IAT Sensor 1 Intermittent Interruption
NOTE:
Before you troubleshoot, review the general troubleshooting information.
Check for damage or corrosion at MAF sensor/IAT sensor 1 connector terminals.

DTC Description
Confirmed DTC
Pending DTC
P0114 IAT Sensor 1 Intermittent Interruption
    

1.
Problem verification:

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

?2.
Clear the DTC with the HDS.


?3.
Check for Pending or Confirmed DTCs with the HDS.
DTC Description
Confirmed DTC
Pending DTC
P0114 IAT Sensor 1 Intermittent Interruption
    

Is DTC P0114 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 MAF sensor/IAT 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 (TA2 line):

Shorted wire check (TA2 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.
MAF sensor/IAT sensor 1 5P connector
PCM connector No. 1 (96P)

?4.
Check for continuity between test points 1 and 2.
Test condition
Vehicle OFF (LOCK) mode
 
MAF sensor/IAT sensor 1 5P connector: disconnected
 
PCM connector No. 1 (96P): disconnected
Test point 1
MAF sensor/IAT sensor 1 5P connector (female terminals) No. 5:
Test point 2
Body ground


Is there continuity?

     
YES
     
     
     
Repair a short in the TA2 wire between PCM connector No. 1 terminal No. 52 and MAF sensor/IAT sensor 1.?
     
NO
     
     
     
The TA2 wire is not shorted. Go to step 3.
3.
Open wire check (TA2 line):

Open wire check (TA2 line)
?1.
Check for continuity between test points 1 and 2.
Test condition
Vehicle OFF (LOCK) mode
 
MAF sensor/IAT sensor 1 5P connector: disconnected
 
PCM connector No. 1 (96P): disconnected
Test point 1
MAF sensor/IAT sensor 1 5P connector (female terminals) No. 5:
Test point 2
PCM connector No. 1 (96P) No. 52


Is there continuity?

     
YES
     
     
     
The TA2 wire is OK. Go to step 4.
     
NO
     
     
     
Repair an open in the TA2 wire between PCM connector No. 1 terminal No. 52 and MAF sensor/IAT sensor 1.?
4.
Open wire check (SG AFM line):

Open wire check (SG AFM line)
?1.
Check for continuity between test points 1 and 2.
Test condition
Vehicle OFF (LOCK) mode
 
MAF sensor/IAT sensor 1 5P connector: disconnected
 
PCM connector No. 1 (96P): disconnected
Test point 1
MAF sensor/IAT sensor 1 5P connector (female terminals) No. 2:
Test point 2
PCM connector No. 1 (96P) No. 35


Is there continuity?

     
YES
     
     
     
The SG AFM wire is OK. Replace MAF sensor/IAT sensor 1.?
     
NO
     
     
     
Repair an open in the SG AFM wire between PCM connector No. 1 terminal No. 35 and MAF sensor/IAT sensor 1.?