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DTC P0098:00 [PCM (SKYACTIV-X)]

DTC P0098:00 [PCM (SKYACTIV-X)]


 id0102u9146500


Outline

System malfunction location

Boost air temperature sensor circuit high input

Detection condition
•  The boost air temperature sensor output voltage exceeds 4.8 V for a continuous 5 s.
Fail-safe
•  Inhibits the boost system.
•  Stops the EGR control.
Possible cause
•  Boost air temperature sensor/boost pressure sensor connector or terminals malfunction
•  PCM connector or terminals malfunction
•  Boost air temperature sensor malfunction
•  Short to power supply in boost air temperature sensor signal circuit
•  Open circuit in any of the following boost air temperature sensor circuits.
―  Signal circuit
―  Ground circuit
•  PCM malfunction


Diagnostic Procedure

Step

Inspection

Results

Action

1
RECORD VEHICLE STATUS WHEN DTC WAS DETECTED TO UTILIZE WITH REPEATABILITY VERIFICATION
•  Record the freeze frame data/snapshot data.
Note
•  Recording can be facilitated using the screen capture function of the PC.
Go to the next step.
2
VERIFY RELATED REPAIR INFORMATION OR SERVICE INFORMATION AVAILABILITY
•  Verify related Service Bulletins, on-line repair information, or Service Information availability.
•  Is any related Information available?
Yes
Perform repair or diagnosis according to the available information.
•  If the vehicle is not repaired, go to the next step.
No
Go to the next step.
3
DETERMINE IF BOOST AIR TEMPERATURE SENSOR OR WIRING HARNESS MALFUNCTION
•  Access the IAT2 PID using the M-MDS.
•  Verify the IAT2 PID value.
•  Is the IAT2 PID value 5 V or B+?
Yes
Go to Step 7.
No
Go to the next step.
4
INSPECT BOOST AIR TEMPERATURE SENSOR/BOOST PRESSURE SENSOR CONNECTOR FOR MALFUNCTION
•  Inspect the applicable connector and terminal.
•  Are the connector and terminal normal?
Yes
Go to the next step.
No
Repair or replace the malfunctioning location and perform the repair completion verification.
5
INSPECT PCM CONNECTOR FOR MALFUNCTION
•  Inspect the applicable connector and terminal.
•  Are the connector and terminal normal?
Yes
Go to the next step.
No
Repair or replace the malfunctioning location and perform the repair completion verification.
6
INSPECT BOOST AIR TEMPERATURE SENSOR FOR MALFUNCTION
•  Inspect the applicable part.
•  Is the part normal?
Yes
Go to repair completion verification.
No
Repair or replace the malfunctioning location and perform the repair completion verification.
7
DETERMINE IF BOOST AIR TEMPERATURE SENSOR SIGNAL CIRCUIT OR BOOST AIR TEMPERATURE SENSOR GROUND CIRCUIT MALFUNCTION
•  Switch the ignition off.
•  Disconnect the boost pressure sensor/boost air temperature sensor connector.
•  Access the IAT2 PID using the M-MDS.
•  Verify the IAT2 PID value.
•  Is the IAT2 PID value 5 V or B+?
Yes
Go to the next step.
No
Go to Step 9.
8
INSPECT BOOST PRESSURE SENSOR SIGNAL CIRCUIT FOR OPEN CIRCUIT
•  Inspect the applicable circuit for open circuit.
•  Is the circuit normal?
Yes
Inspect the signal circuit for a short to power supply.
•  Repair or replace the malfunctioning location and perform the repair completion verification.
No
Repair or replace the malfunctioning location and perform the repair completion verification.
9
INSPECT BOOST PRESSURE SENSOR GROUND CIRCUIT FOR OPEN CIRCUIT
•  Inspect the applicable circuit for open circuit.
•  Is the circuit normal?
Yes
Repair or replace the malfunctioning location and perform the repair completion verification.
No
Repair or replace the malfunctioning location and perform the repair completion verification.
Repair completion verification 1
VERIFY THAT VEHICLE IS REPAIRED
•  Install/connect the part removed/disconnected during the troubleshooting procedure.
•  Clear the DTC recorded in the memory.
•  Replicate the vehicle conditions at the time the DTC was detected using the following procedure.
―  Perform the KOEO or KOER self test.
•  Perform the DTC inspection for the PCM.
•  Is the same Pending DTC present?
Yes
Refer to the controller area network (CAN) malfunction diagnosis flow to inspect for a CAN communication error.
If the CAN communication is normal, perform the diagnosis from Step 1.
•  If the malfunction recurs, replace the PCM, then go to the next step.
No
Go to the next step.
Repair completion verification 2
VERIFY IF OTHER DTCs DISPLAYED
•  Perform the DTC inspection.
•  Are any other DTCs displayed?
Yes
Repair the malfunctioning location according to the applicable DTC troubleshooting.
No
DTC troubleshooting completed.