DTC P0101:00 [SKYACTIV-D 2.2]

DTC P0101:00	MAF sensor circuit range/performance problem
DETECTION CONDITION	• When the following conditions are met, the intake air amount is out of the specification (fluctuates with engine speed) for a continuous 5.2 s. MONITORING CONDITIONS ― Battery voltage: 8—20 V ― 60 s have elapsed after enigine was started. ― Engine speed: 1,000—3,500 rpm ― Fuel injection amount: 0 mm³/st ― Charge air temperature: below 60 °C {140 °F} ― Desired EGR valve position: below 1 % ― Desired intake shutter valve position: 53 ° ― Intake manifold pressure: below 200 kPa {2.03 kgf/cm², 29.0 psi} ― EGR cooler bypass valve position: below 1 % ― Regulating valve target drive duty value: above 55 % ― Wastegate valve target drive duty value: above 60 % ― OCV: not active ― The following DTCs are not detected: • EGR valve position sensor: P0405:00, P0406:00 • EGR valve DC motor control system: P0404:00, P0488:00 • Intake shutter valve control: P2101:00ÅAP2118:00ÅAP1589:00 • MAF sensor: P0102:00, P0103:00 • IAT sensor No.2: P007C:00, P007D:00 • MAP sensor: P0107:00, P0108:00 • Intake sutter valve position sensor: P0122:00, P0123:00 • BARO sensor: P2228:00, P2229:00 Diagnostic support note • This is a continuous monitor (CCM). • The check engine light illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or in one drive cycle while the DTC for the same malfunction has been stored in the PCM. • PENDING CODE is available if the PCM detects the above malfunction condition during first drive cycle. • FREEZE FRAME DATA (Mode 2)/Snapshot data is available. • DTC is stored in the PCM memory.
FAIL-SAFE FUNCTION	• PCM restricts engine torque. • Inhibits the EGR control. • Inhibits the diesel particulate filter regeneration control. • The fast idle up correction for the idle speed control is inhibited. • Inhibits engine-stop by operating the i-stop function. • PCM restricts engine-transaxle integration control.
POSSIBLE CAUSE	• MAF sensor/IAT sensor No.1 connector or terminals malfunction • MAF sensor malfunction • PCM connector or terminals malfunction • Air suction or restriction in intake-air system (between MAF sensor and intake manifold) • Turbocharger malfunction (turbine wheel and/or compressor wheel damaged, stuck) • Improper operation of EGR control system • PCM malfunction
SYSTEM WIRING DIAGRAM	Not applicable

DTC P0101:00

MAF sensor circuit range/performance problem

DETECTION CONDITION

• When the following conditions are met, the intake air amount is out of the specification (fluctuates with engine speed) for a continuous 5.2 s.

MONITORING CONDITIONS

― Battery voltage: 8—20 V

― 60 s have elapsed after enigine was started.

― Engine speed: 1,000—3,500 rpm

― Fuel injection amount: 0 mm³/st

― Charge air temperature: below 60 °C {140 °F}

― Desired EGR valve position: below 1 %

― Desired intake shutter valve position: 53 °

― Intake manifold pressure: below 200 kPa {2.03 kgf/cm², 29.0 psi}

― EGR cooler bypass valve position: below 1 %

― Regulating valve target drive duty value: above 55 %

― Wastegate valve target drive duty value: above 60 %

― OCV: not active

― The following DTCs are not detected:

• EGR valve position sensor: P0405:00, P0406:00

• EGR valve DC motor control system: P0404:00, P0488:00

• Intake shutter valve control: P2101:00ÅAP2118:00ÅAP1589:00

• MAF sensor: P0102:00, P0103:00

• IAT sensor No.2: P007C:00, P007D:00

• MAP sensor: P0107:00, P0108:00

• Intake sutter valve position sensor: P0122:00, P0123:00

• BARO sensor: P2228:00, P2229:00

Diagnostic support note

• This is a continuous monitor (CCM).

• The check engine light illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or in one drive cycle while the DTC for the same malfunction has been stored in the PCM.

• PENDING CODE is available if the PCM detects the above malfunction condition during first drive cycle.

• FREEZE FRAME DATA (Mode 2)/Snapshot data is available.

• DTC is stored in the PCM memory.

FAIL-SAFE FUNCTION

• PCM restricts engine torque.

• Inhibits the EGR control.

• Inhibits the diesel particulate filter regeneration control.

• The fast idle up correction for the idle speed control is inhibited.

• Inhibits engine-stop by operating the i-stop function.

• PCM restricts engine-transaxle integration control.

POSSIBLE CAUSE

• MAF sensor/IAT sensor No.1 connector or terminals malfunction

• MAF sensor malfunction

• PCM connector or terminals malfunction

• Air suction or restriction in intake-air system (between MAF sensor and intake manifold)

• Turbocharger malfunction (turbine wheel and/or compressor wheel damaged, stuck)

• Improper operation of EGR control system

• PCM malfunction

SYSTEM WIRING DIAGRAM

Not applicable

STEP	INSPECTION	ACTION
1	RECORD VEHICLE STATUS WHEN DTC WAS DETECTED TO UTILIZE WITH REPEATABILITY VERIFICATION Note • Recording can be facilitated using the screen capture of the PC function. • Record the FREEZE FRAME DATA/snap shot data.	—	Go to the next step.
2	VERIFY RELATED REPAIR INFORMATION AVAILABILITY • Verify related Service Information availability. • Is any related Service Information available?	Yes	Perform repair or diagnosis according to the available Service Information. • If the vehicle is not repaired, go to the next step.
No	Go to the next step.
3	VERIFY RELATED PENDING CODE AND/OR DTC • Switch the ignition off, then ON (engine off). • Perform the Pending Trouble Code Access Procedure and DTC Reading Procedure. (See ON-BOARD DIAGNOSTIC TEST [SKYACTIV-D 2.2].) • Are any other PENDING CODEs and/or DTCs present?	Yes	Go to the applicable PENDING CODE or DTC inspection. (See DTC TABLE [SKYACTIV-D 2.2].)
No	Go to the next step.
4	INSPECT MAF SENSOR/IAT SENSOR NO.1 CONNECTOR CONDITION • Switch the ignition off. • Disconnect the MAF sensor/IAT sensor No.1 connector. • Inspect for poor connection (such as damaged/pulled-out pins, corrosion). • Is there any malfunction?	Yes	Repair or replace the connector and/or terminals, then go to Step 13.
No	Go to the next step.
5	INSPECT INSTALLATION OF MAF SENSOR/IAT SENSOR NO.1 • Inspect installation of MAF sensor/IAT sensor No.1. (See MASS AIR FLOW (MAF) SENSOR/INTAKE AIR TEMPERATURE (IAT) SENSOR NO.1 REMOVAL/INSTALLATION [SKYACTIV-D 2.2].) • Is the MAF sensor/IAT sensor No.1 installed securely?	Yes	Go to the next step.
No	Retighten the MAF sensor/IAT sensor No.1, then go to Step 13. (See MASS AIR FLOW (MAF) SENSOR/INTAKE AIR TEMPERATURE (IAT) SENSOR NO.1 REMOVAL/INSTALLATION [SKYACTIV-D 2.2].)
6	INSPECT PCM CONNECTOR CONDITION • Disconnect the PCM connector. • Inspect for poor connection (such as damaged/pulled-out pins, corrosion). • Is there any malfunction?	Yes	Repair or replace the connector and/or terminals, then go to Step 13.
No	Go to the next step.
7	INSPECT INTAKE AIR SYSTEM FOR EXCESSIVE AIR SUCTION • Visually inspect for loose, cracked or damaged hoses on intake air system. Note • Engine speed may change when rust penetrating agent is sprayed on the air suction area. • Is there any malfunction?	Yes	Repair or replace the malfunctioning part according to the inspection results, then go to Step 13.
No	Go to the next step.
8	INSPECT FOR RESTRICTION IN INTAKE AIR SYSTEM • Verify if there is restriction into the intake air system (such as between MAF sensor and intake manifold). • Is there any malfunction?	Yes	Repair or replace the malfunctioning part according to the inspection results, then go to Step 13.
No	Go to the next step.
9	INSPECT EXHAUST SYSTEM (EGR) RELATED PIPE • Visually inspect the exhaust system (EGR) related pipe for restriction and damaged. (See EMISSION SYSTEM LOCATION INDEX [SKYACTIV-D 2.2].) • Is there any malfunction?	Yes	Repair or replace the malfunctioning part according to the inspection results, then go to Step 13.
No	Go to the next step.
10	INSPECT MAF SENSOR • Reconnect all disconnected connectors. • Inspect the MAF sensor. (See MASS AIR FLOW (MAF) SENSOR INSPECTION [SKYACTIV-D 2.2].) • Is there any malfunction?	Yes	Replace the MAF sensor/IAT sensor No.1, then go to Step 13. (See MASS AIR FLOW (MAF) SENSOR/INTAKE AIR TEMPERATURE (IAT) SENSOR NO.1 REMOVAL/INSTALLATION [SKYACTIV-D 2.2].)
No	Go to the next step.
11	INSPECT TURBOCHARGER • Inspect the turbocharger. (See TURBOCHARGER INSPECTION [SKYACTIV-D 2.2].) • Is the turbocharger normal?	Yes	Go to the next step.
No	Replace the turbocharger, then go to Step 13. (See TURBOCHARGER REMOVAL/INSTALLATION [SKYACTIV-D 2.2].)
12	VERIFY REPEATABILITY OF KOEO SELF TEST • Always reconnect all disconnected connectors. • Clear the DTC from the PCM memory using the M-MDS. (See CLEARING DTC [SKYACTIV-D 2.2].) • Perform the KOEO self test. (See KOEO/KOER SELF TEST [SKYACTIV-D 2.2].) • Is the PENDING CODE for this DTC present?	Yes	Inspect installation of MAF sensor/IAT sensor No.1. (See MASS AIR FLOW (MAF) SENSOR/INTAKE AIR TEMPERATURE (IAT) SENSOR NO.1 REMOVAL/INSTALLATION [SKYACTIV-D 2.2].) • If there is any malfunction: ― Repair or replace the malfunctioning part according to the inspection results, then go to the next step. • If there is no malfunction: ― Go to the next step.
No	Go to the next step.
13	VERIFY DTC TROUBLESHOOTING COMPLETED • Always reconnect all disconnected connectors. • Clear the DTC from the PCM memory using the M-MDS. (See CLEARING DTC [SKYACTIV-D 2.2].) • Start the engine. • Repeat deceleration 10 times using engine braking after accelerating the vehicle speed to 60 km/h {37 mph}. • Perform the Pending Trouble Code Access Procedure. (See ON-BOARD DIAGNOSTIC TEST [SKYACTIV-D 2.2].) • Is the PENDING CODE for this DTC present?	Yes	Repeat the inspection from Step 1. • If the malfunction recurs, replace the PCM. (See PCM REMOVAL/INSTALLATION [SKYACTIV-D 2.2].) Go to the next step.
No	Go to the next step.
14	VERIFY AFTER REPAIR PROCEDURE • Perform the “AFTER REPAIR PROCEDURE”. (See AFTER REPAIR PROCEDURE [SKYACTIV-D 2.2].) • Are any DTCs present?	Yes	Go to the applicable DTC inspection. (See DTC TABLE [SKYACTIV-D 2.2].)
No	DTC troubleshooting completed.

STEP

INSPECTION

ACTION

RECORD VEHICLE STATUS WHEN DTC WAS DETECTED TO UTILIZE WITH REPEATABILITY VERIFICATION

Note

• Recording can be facilitated using the screen capture of the PC function.

• Record the FREEZE FRAME DATA/snap shot data.

—

Go to the next step.

VERIFY RELATED REPAIR INFORMATION AVAILABILITY

• Verify related Service Information availability.

• Is any related Service Information available?

Yes

Perform repair or diagnosis according to the available Service Information.

• If the vehicle is not repaired, go to the next step.

Go to the next step.

VERIFY RELATED PENDING CODE AND/OR DTC

• Switch the ignition off, then ON (engine off).

• Perform the Pending Trouble Code Access Procedure and DTC Reading Procedure.

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

• Are any other PENDING CODEs and/or DTCs present?

Yes

Go to the applicable PENDING CODE or DTC inspection.

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

Go to the next step.

INSPECT MAF SENSOR/IAT SENSOR NO.1 CONNECTOR CONDITION

• Switch the ignition off.

• Disconnect the MAF sensor/IAT sensor No.1 connector.

• Inspect for poor connection (such as damaged/pulled-out pins, corrosion).

• Is there any malfunction?

Yes

Repair or replace the connector and/or terminals, then go to Step 13.

Go to the next step.

INSPECT INSTALLATION OF MAF SENSOR/IAT SENSOR NO.1

• Inspect installation of MAF sensor/IAT sensor No.1.

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

• Is the MAF sensor/IAT sensor No.1 installed securely?

Yes

Go to the next step.

Retighten the MAF sensor/IAT sensor No.1, then go to Step 13.

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

INSPECT PCM CONNECTOR CONDITION

• Disconnect the PCM connector.

• Inspect for poor connection (such as damaged/pulled-out pins, corrosion).

• Is there any malfunction?

Yes

Repair or replace the connector and/or terminals, then go to Step 13.

Go to the next step.

INSPECT INTAKE AIR SYSTEM FOR EXCESSIVE AIR SUCTION

• Visually inspect for loose, cracked or damaged hoses on intake air system.

Note

• Engine speed may change when rust penetrating agent is sprayed on the air suction area.

• Is there any malfunction?

Yes

Repair or replace the malfunctioning part according to the inspection results, then go to Step 13.

Go to the next step.

INSPECT FOR RESTRICTION IN INTAKE AIR SYSTEM

• Verify if there is restriction into the intake air system (such as between MAF sensor and intake manifold).

• Is there any malfunction?

Yes

Repair or replace the malfunctioning part according to the inspection results, then go to Step 13.

Go to the next step.

INSPECT EXHAUST SYSTEM (EGR) RELATED PIPE

• Visually inspect the exhaust system (EGR) related pipe for restriction and damaged.

(See EMISSION SYSTEM LOCATION INDEX [SKYACTIV-D 2.2].)

• Is there any malfunction?

Yes

Repair or replace the malfunctioning part according to the inspection results, then go to Step 13.

Go to the next step.

INSPECT MAF SENSOR

• Reconnect all disconnected connectors.

• Inspect the MAF sensor.

(See MASS AIR FLOW (MAF) SENSOR INSPECTION [SKYACTIV-D 2.2].)

• Is there any malfunction?

Yes

Replace the MAF sensor/IAT sensor No.1, then go to Step 13.

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

Go to the next step.

INSPECT TURBOCHARGER

• Inspect the turbocharger.

(See TURBOCHARGER INSPECTION [SKYACTIV-D 2.2].)

• Is the turbocharger normal?

Yes

Go to the next step.

Replace the turbocharger, then go to Step 13.

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

VERIFY REPEATABILITY OF KOEO SELF TEST

• Always reconnect all disconnected connectors.

• Clear the DTC from the PCM memory using the M-MDS.

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

• Perform the KOEO self test.

(See KOEO/KOER SELF TEST [SKYACTIV-D 2.2].)

• Is the PENDING CODE for this DTC present?

Yes

Inspect installation of MAF sensor/IAT sensor No.1.

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

• If there is any malfunction:

― Repair or replace the malfunctioning part according to the inspection results, then go to the next step.

• If there is no malfunction:

― Go to the next step.

Go to the next step.

VERIFY DTC TROUBLESHOOTING COMPLETED

• Always reconnect all disconnected connectors.

• Clear the DTC from the PCM memory using the M-MDS.

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

• Start the engine.

• Repeat deceleration 10 times using engine braking after accelerating the vehicle speed to 60 km/h {37 mph}.

• Perform the Pending Trouble Code Access Procedure.

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

• Is the PENDING CODE for this DTC present?

Yes

Repeat the inspection from Step 1.

• If the malfunction recurs, replace the PCM.

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

Go to the next step.

VERIFY AFTER REPAIR PROCEDURE

• Perform the “AFTER REPAIR PROCEDURE”.

(See AFTER REPAIR PROCEDURE [SKYACTIV-D 2.2].)

• Are any DTCs present?

Yes

Go to the applicable DTC inspection.

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

DTC troubleshooting completed.