DTC Troubleshooting: P0097
DTC P0097: IAT Sensor 2 Circuit Low Voltage
NOTE: Before you troubleshoot, review the general troubleshooting information.

DTC Description
Confirmed DTC
Pending DTC
P0097 IAT Sensor 2 Circuit Low Voltage
    

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
P0097 IAT Sensor 2 Circuit Low Voltage
    

Is DTC P0097 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 MAP sensor/IAT 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.?
2.
Determine possible failure area (MAP sensor/IAT sensor 2, others):

Determine possible failure area (MAP sensor/IAT sensor 2, others)
?1.
Turn the vehicle to the OFF (LOCK) mode.

?2.
Disconnect the following connector.
MAP sensor/IAT sensor 2 4P connector

?3.
Turn the vehicle to the ON mode.

?4.
Clear the DTC with the HDS.


?5.
Check for Pending or Confirmed DTCs with the HDS.
DTC Description
Confirmed DTC
Pending DTC
P0097 IAT Sensor 2 Circuit Low Voltage
    

Is DTC P0097 indicated?

     
YES
     
     
     
Go to step 3.
     
NO
     
     
     
3.
Shorted wire check (TA line):

Shorted wire check (TA 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 No. 1 (96P)

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


Is there continuity?

     
YES
     
     
     
Repair a short in the TA wire between PCM connector No. 1 terminal No. 45 and MAP sensor/IAT sensor 2.?
     
NO
     
     
     
The TA wire is OK. Check for any authorized service information related to the DTCs or symptoms you are troubleshooting, or substitute a known-good PCM, then recheck. If DTC P0097 goes away and the PCM was substituted, replace the original PCM.?