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

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

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

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 • Inspect IAT sensor No.2. (See INTAKE AIR TEMPERATURE (IAT) SENSOR INSPECTION [SKYACTIV-D 2.2]) • Is IAT sensor No.2 normal?	Yes	Go to the next step.
No	Replace IAT sensor No.2, then go to Step 9. (See INTAKE AIR TEMPERATURE (IAT) SENSOR NO.2 REMOVAL/INSTALLATION [SKYACTIV-D 2.2])
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 • Inspect IAT sensor No.1. (See INTAKE AIR TEMPERATURE (IAT) SENSOR INSPECTION [SKYACTIV-D 2.2]) • Is IAT sensor No.1 normal?	Yes	Go to the next step.
No	Replace IAT sensor No.1, then go to Step 9. (See MASS AIR FLOW (MAF) SENSOR/INTAKE AIR TEMPERATURE (IAT) SENSOR NO.1 REMOVAL/INSTALLATION [SKYACTIV-D 2.2])
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. (See BOOST AIR TEMPERATURE SENSOR INSPECTION [SKYACTIV-D 2.2]) • 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. (See BOOST AIR TEMPERATURE SENSOR REMOVAL/INSTALLATION [SKYACTIV-D 2.2])
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. (See CLEARING DTC [PCM (SKYACTIV-D 2.2)]) • 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. (See ON-BOARD DIAGNOSTIC TEST [PCM (SKYACTIV-D 2.2)]) • 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. (See PCM REMOVAL/INSTALLATION [SKYACTIV-D 2.2])
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. (See DTC TABLE [PCM (SKYACTIV-D 2.2)])
No	DTC troubleshooting completed.

Step

Inspection

Results

Action

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.

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.

Repair or replace the connector, then go to Step 9.

INSPECT IAT SENSOR NO.2

• Inspect IAT sensor No.2.

(See INTAKE AIR TEMPERATURE (IAT) SENSOR INSPECTION [SKYACTIV-D 2.2])

• Is IAT sensor No.2 normal?

Yes

Go to the next step.

Replace IAT sensor No.2, then go to Step 9.

(See INTAKE AIR TEMPERATURE (IAT) SENSOR NO.2 REMOVAL/INSTALLATION [SKYACTIV-D 2.2])

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.

Repair or replace the connector, then go to Step 9.

INSPECT IAT SENSOR NO.1

• Inspect IAT sensor No.1.

(See INTAKE AIR TEMPERATURE (IAT) SENSOR INSPECTION [SKYACTIV-D 2.2])

• Is IAT sensor No.1 normal?

Yes

Go to the next step.

Replace IAT sensor No.1, then go to Step 9.

(See MASS AIR FLOW (MAF) SENSOR/INTAKE AIR TEMPERATURE (IAT) SENSOR NO.1 REMOVAL/INSTALLATION [SKYACTIV-D 2.2])

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.

Repair or replace the connector, then go to Step 9.

INSPECT BOOST AIR TEMPERATURE SENSOR

• Inspect the boost air temperature sensor.

(See BOOST AIR TEMPERATURE SENSOR INSPECTION [SKYACTIV-D 2.2])

• Is the boost air temperature sensor normal?

Yes

Go to the next step.

Replace the boost air temperature sensor, then go to Step 9.

(See BOOST AIR TEMPERATURE SENSOR REMOVAL/INSTALLATION [SKYACTIV-D 2.2])

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.

Repair or replace the connector, then go to the next step.

VERIFY THAT REPAIRS HAVE BEEN COMPLETED

• Reconnect all the disconnected connectors.

• Refer to the [MEMORY CLEARING PROCEDURE] and clear the DTC.

(See CLEARING DTC [PCM (SKYACTIV-D 2.2)])

• 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.

(See ON-BOARD DIAGNOSTIC TEST [PCM (SKYACTIV-D 2.2)])

• 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.

(See PCM REMOVAL/INSTALLATION [SKYACTIV-D 2.2])

Go to the next step.

VERIFY OTHER DTCs

• Has any other DTC or pending code been stored?

Yes

Repair the malfunctioning location according to the applicable DTC troubleshooting.

(See DTC TABLE [PCM (SKYACTIV-D 2.2)])

DTC troubleshooting completed.