DTC P1147:00 [PCM (SKYACTIV-D 2.2)]


id0102j5326200

DTC P1147:00

IAT sensor No.2 correlation problem

DETECTION CONDITION
•  With the following conditions met, the difference between the IAT sensor No.2 output value and the boost air temperature sensor output value is 150 °C or more, or the difference between the IAT sensor No.1 output value and the IAT sensor No.2 output value is 150 °C or more for a continuous 0.128 s.
―  Before starting the engine, leave the vehicle with the engine turned off for 6 h or more.
―  Battery positive voltage: 10 V or more
―  Ignition is switched ON (engine off or on)
―  The following DTCs are not detected
•  Boost air temperature sensor: P007C:00, P007D:00
•  IAT sensor No.1: P0112:00, P0113:00
•  IAT sensor No.2: P1118:00, P1119:00
•  Malfunction in instrument cluster: P2610:00
•  ECT sensor: P0118:00, P0117:00
Diagnostic support note
•  This is a continuous monitor (CCM).
•  The check engine light illuminates if the PCM detects the above malfunction condition during the first drive cycle.
•  FREEZE FRAME DATA/Snapshot data is available.
•  DTC is stored in the PCM memory.
FAIL-SAFE FUNCTION
•  Inhibits the EGR control.
•  Limits engine torque.
POSSIBLE CAUSE
•  IAT sensor No.2 connector or terminal malfunction
•  IAT sensor No.2 malfunction
•  IAT sensor No.1 connector or terminal malfunction
•  IAT sensor No.1 malfunction
•  Boost air temperature sensor connector or terminal malfunction
•  Boost air temperature sensor malfunction
•  PCM connector or terminal malfunction
•  PCM malfunction
SYSTEM WIRING DIAGRAM
Not applicable


Diagnostic Procedure

Step

Inspection

Results

Action

1
RECORD VEHICLE STATUS WHEN DTC WAS DETECTED TO UTILIZE WITH REPEATABILITY VERIFICATION
Note
•  Recording can be facilitated using the screen capture function of the PC.
•  Record the freeze frame data/snap shot data.
Go to the next step.
2
INSPECT IAT SENSOR NO.2 CONNECTOR CONNECTION
•  Disconnect the IAT sensor No.2 connector.
•  Inspect the connector engagement and connection condition, and inspect the terminals for damage, deformation, corrosion, or disconnection.
•  Is the connector normal?
Yes
Go to the next step.
No
Repair or replace the connector, then go to Step 9.
3
INSPECT IAT SENSOR NO.2
•  Is IAT sensor No.2 normal?
Yes
Go to the next step.
No
Replace IAT sensor No.2, then go to Step 9.
4
INSPECT IAT SENSOR NO.1 CONNECTOR CONDITION
•  Disconnect the IAT sensor No.1 connector.
•  Inspect the connector engagement and connection condition, and inspect the terminals for damage, deformation, corrosion, or disconnection.
•  Is the connector normal?
Yes
Go to the next step.
No
Repair or replace the connector, then go to Step 9.
5
INSPECT IAT SENSOR NO.1
•  Is IAT sensor No.1 normal?
Yes
Go to the next step.
No
Replace IAT sensor No.1, then go to Step 9.
6
INSPECT BOOST AIR TEMPERATURE SENSOR CONNECTOR CONDITION
•  Switch the ignition OFF.
•  Disconnect the boost air temperature sensor connector.
•  Inspect the connector engagement and connection condition, and inspect the terminals for damage, deformation, corrosion, or disconnection.
•  Is the connector normal?
Yes
Go to the next step.
No
Repair or replace the connector, then go to Step 9.
7
INSPECT BOOST AIR TEMPERATURE SENSOR
•  Inspect the boost air temperature sensor.
•  Is the boost air temperature sensor normal?
Yes
Go to the next step.
No
Replace the boost air temperature sensor, then go to Step 9.
8
INSPECT PCM CONNECTOR CONDITION
•  Disconnect the PCM connector.
•  Inspect the connector engagement and connection condition, and inspect the terminals for damage, deformation, corrosion, or disconnection.
•  Is the connector normal?
Yes
Go to the next step.
No
Repair or replace the connector, then go to the next step.
9
VERIFY THAT REPAIRS HAVE BEEN COMPLETED
•  Reconnect all the disconnected connectors.
•  Refer to the [MEMORY CLEARING PROCEDURE] and clear the DTC.
•  Leave the vehicle for 6 h or more.
•  Switch the ignition ON (engine off) or leave for 1 min while idling.
•  Display the DTCs using the M-MDS.
•  Has DTC P1147:00 been recorded?
Yes
Repeat the inspection from Step 1.
•  If the malfunction recurs, replace the PCM, then go to the next step.
No
Go to the next step.
10
VERIFY OTHER DTCs
•  Has any other DTC or pending code been stored?
Yes
Repair the malfunctioning location according to the applicable DTC troubleshooting.
No
DTC troubleshooting completed.