DTC Advanced Diagnostics: P0096
DTC P0096:Intake Air Temperature (IAT) Sensor 2 Circuit Range/Performance

General Description

Intake air temperature (IAT) sensor 2 is located at the downstream side of the throttle body. The powertrain control module performs a high side check and stuck check of IAT sensor 2. The high side check is performed by continuously comparing the temperature determined by the sensor with a modeled maximum temperature. In order to perform a stuck check, minimum and maximum intake air temperatures starting at vehicle ON mode are stored and continuously updated. If the IAT sensor 2 output temperature is a specified value or the difference between maximum and minimum of IAT sensor 2 temperature is a specified value, the PCM detects a malfunction and stores a DTC.

Monitor Execution, Sequence, Duration, DTC Type
Execution
Multiple
Sequence
None
Duration
10 seconds*, 0.5 second**
DTC Type
Two drive cycles, MIL on
*: High side check
**: Stuck check

Enable Conditions
High side check
Condition
Minimum
Maximum
Vehicle speed [Vehicle Speed]
0 mph (0 km/h)
–
Intake air amount
0 kg/h (0 lbs/h)
1,020 kg/h (2,248 lbs/h)
State of the engine
Running

Stuck check: The engine must run in the following two operating ranges at 5 phases each

Conditions for low intake air temperature phase
Condition
Minimum
Maximum
Engine coolant temperature [ECT Sensor 1]
121.93 °F (49.96 °C)
–
Vehicle speed [Vehicle Speed]
–
12 mph (20 km/h)
Intake air amount
–
52 kg/h (114 lbs/h)
Total intake air amount
0 kg (0 lbs)
–

Conditions for high intake air temperature phase
Condition
Minimum
Maximum
Vehicle speed [Vehicle Speed]
31 mph (50 km/h)
–
Intake air amount
0 kg/h (0 lbs/h)
120 kg/h (264 lbs/h)
[ ]: HDS Parameter

Malfunction Threshold
High side check
The IAT sensor 2 output temperature is 247.93 °F (119.96 °C) - 256.93 °F (124.96 °C) or more for at least 10 seconds.
Stuck check
The difference between maximum and minimum of IAT sensor 2 temperature is less than 0.82 °F (0.46 °C).

Possible Cause
NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes
IAT sensor 2 PB line short to power
IAT sensor 2 PB line short to ground
IAT sensor 2 failure
PCM internal circuit failure

Confirmation Procedure
Operating Condition
1.
Start the engine.
2.
Drive the vehicle at vehicle speed [Vehicle Speed] less than 12 mph (20 km/h) for a few minutes.
3.
Maintain the vehicle speed [Vehicle Speed] above 31 mph (50 km/h) for a few minutes.
Drive the vehicle in this manner only if the traffic regulations and ambient conditions allow.

Diagnosis Details
Conditions for setting the DTC
When a malfunction is detected during the first drive cycle, a Pending DTC is stored in the PCM memory. If the malfunction returns in the next (second) drive cycle, the MIL comes on and a Confirmed DTC and the freeze data are stored.

Conditions for clearing the DTC
The MIL is cleared if the malfunction does not return in three consecutive trips in which the diagnostic runs. The MIL, the Pending DTC, the Confirmed DTC, and the freeze data can be cleared with the scan tool Clear command.