DTC Advanced Diagnostics: P00CF
DTC P00CF:Turbocharger Boost Sensor/Barometric Pressure (BARO) Sensor Incorrect Correlation

General Description
The turbocharger boost sensor is checked for signal faults by two methods. A cross check is done once per driving cycle after the vehicle is turned to the ON mode until the engine start, and the pressure sensors are compared. As soon as environmental pressure is in the whole air system, the differences between each pressure sensor are balanced by the usage of calculated offset values. After starting the engine, a continuous check is done to compare the signals of the turbocharger boost sensor and the barometric pressure (BARO) sensor. If a certain deviation occurs between the turbocharger boost sensor and the compared sensor, the powertrain control module (PCM) detects a malfunction and stores a DTC.

Monitor Execution, Sequence, Duration, DTC Type
Execution
Continuous
Sequence
None
Duration
2 seconds or more
DTC Type
One drive cycle, MIL on

Enable Conditions
Cross check
Condition
 
Vehicle
ON mode

Continuous check
Condition
Minimum
Maximum
Engine speed [Engine Speed]*
80 rpm
–
Turbocharger boost sensor voltage [TC Boost Pressure Sensor]
0.16 V
4.91 V
Throttle position (TP) sensor*
–
8.01 %
Other
No TP sensor error
BARO sensor valid
Other than fuel cut operation
[ ]: HDS Parameter

Malfunction Threshold
Cross check
The absolute difference between the measured turbocharger boost sensor pressure and the reference pressure is more than 7.5 kPa (57 mmHg, 2.22 inHg).
Continuous check
The absolute difference between the turbocharger boost sensor pressure and measured ambient pressure is more than 16.0 kPa (120 mmHg, 4.73 inHg) or more than 22.0 kPa (165 mmHg, 6.50 inHg) when the engine speed [Engine Speed] is less than 20 rpm.
The absolute difference between the turbocharger boost sensor pressure and measured ambient pressure is more than 16.0 kPa (120 mmHg, 4.73 inHg) when the engine speed [Engine Speed] is more than 20 rpm.

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.
Turbocharger boost sensor circuit failure
Turbocharger boost sensor failure

Diagnosis Details
Conditions for setting the DTC
When a malfunction is detected, the MIL comes on and a Pending DTC, a Confirmed DTC, and the freeze data are stored in the PCM memory.

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.