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DTC P0101:00 [PCM (SKYACTIV-D)]

id0102t5700800

Outline

System malfunction location

MAF sensor circuit range/performance problem

Detection condition

•  When the following conditions are met, a condition whereby the intake air amount compared to the estimated intake air amount deviates above the specified value continues for 6 s.

―  1 s or more elapses after selector lever is operated

―  Estimated intake air amount: 0.02―2.0 g/stroke

―  BARO sensor: 72 kPa {0.73 kgf/cm², 10 psi} or more

―  MAF sensor No.1: -10 °C {14 °F} or more

―  ECT sensor: -10 °C {14 °F} or more

―  Engine speed: 1,000―3,000 rpm

―  During fuel cut

―  Intake shutter valve opening angle: 60―95°

―  turbocharger solenoid valve target opening angle: 1―6mm {0.1―0.2 in}

―  LP-EGR control valve position sensor: Within 2.4 % or less

―  Exhaust shutter valve opening angle: 62° or more

―  The following DTCs are not detected

•  MAF sensor: P0102:00, P0103:00

•  BARO sensor: P2228:00, P2229:00

•  HP-EGR control valve position sensor: P0405:00, P0406:00

•  HP-EGR control valve control system: P0404:00

•  ECT sensor: P0117:00, P0118:00

•  MAP sensor: P0107:00, P0108:00

•  Actuator position sensor (turbocharger with variable turbine geometry): P2564:00, P2565:00

•  APP sensor No.1: P2122:00, P2123:00

•  APP sensor No.2: P2127:00, P2128:00

•  APP sensor: P2138:00

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

•  IAT sensor No.3: P1118:00, P1119:00

•  Exhaust gas pressure sensor No.1: P0472:00, P0473:00

•  Exhaust gas temperature sensor No.1: P0545:00, P0546:00

•  LP-EGR control valve position sensor: P0407:00,P0408:00

Fail-safe

•  PCM restricts engine torque.

•  Limits the maximum engine speed.

•  Inhibits the DENOx/DESOx control.

•  Inhibits the diesel particulate filter regeneration control.

•  Inhibits the EGR control.

Possible cause

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

•  MAF/IAT sensor No.1 poor installation

•  PCM connector or terminal malfunction

•  Air suction or clogging into intake air system (between airflow sensor and intake manifold)

•  Exhaust gas leakage or restriction from EGR system-related piping

•  MAF sensor malfunction

•  Turbocharger malfunction (turbine wheel or compressor wheel damage, sticking

•  PCM malfunction

System wiring diagram

•  Not applicable

Connector diagram

•  Not applicable

System malfunction location	MAF sensor circuit range/performance problem
Detection condition	• When the following conditions are met, a condition whereby the intake air amount compared to the estimated intake air amount deviates above the specified value continues for 6 s. ― 1 s or more elapses after selector lever is operated ― Estimated intake air amount: 0.02―2.0 g/stroke ― BARO sensor: 72 kPa {0.73 kgf/cm², 10 psi} or more ― MAF sensor No.1: -10 °C {14 °F} or more ― ECT sensor: -10 °C {14 °F} or more ― Engine speed: 1,000―3,000 rpm ― During fuel cut ― Intake shutter valve opening angle: 60―95° ― turbocharger solenoid valve target opening angle: 1―6mm {0.1―0.2 in} ― LP-EGR control valve position sensor: Within 2.4 % or less ― Exhaust shutter valve opening angle: 62° or more ― The following DTCs are not detected • MAF sensor: P0102:00, P0103:00 • BARO sensor: P2228:00, P2229:00 • HP-EGR control valve position sensor: P0405:00, P0406:00 • HP-EGR control valve control system: P0404:00 • ECT sensor: P0117:00, P0118:00 • MAP sensor: P0107:00, P0108:00 • Actuator position sensor (turbocharger with variable turbine geometry): P2564:00, P2565:00 • APP sensor No.1: P2122:00, P2123:00 • APP sensor No.2: P2127:00, P2128:00 • APP sensor: P2138:00 • Intake shutter valve position sensor: P0122:00, P0123:00 • IAT sensor No.3: P1118:00, P1119:00 • Exhaust gas pressure sensor No.1: P0472:00, P0473:00 • Exhaust gas temperature sensor No.1: P0545:00, P0546:00 • LP-EGR control valve position sensor: P0407:00,P0408:00
Fail-safe	• PCM restricts engine torque. • Limits the maximum engine speed. • Inhibits the DENOx/DESOx control. • Inhibits the diesel particulate filter regeneration control. • Inhibits the EGR control.
Possible cause	• MAF/IAT sensor No.1 connector or terminal malfunction • MAF/IAT sensor No.1 poor installation • PCM connector or terminal malfunction • Air suction or clogging into intake air system (between airflow sensor and intake manifold) • Exhaust gas leakage or restriction from EGR system-related piping • MAF sensor malfunction • Turbocharger malfunction (turbine wheel or compressor wheel damage, sticking • PCM malfunction
System wiring diagram	• Not applicable
Connector diagram	• Not applicable

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

INSPECT FOR OTHER RELATED DTCs

•  Perform the DTC inspection for the PCM.
(See DTC INSPECTION.)

•  Are any other DTCs displayed?

Yes

Repair the malfunctioning location according to the applicable DTC troubleshooting.

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

No

Go to the next step.

4

INSPECT MAF/IAT SENSOR No.1 CONNECTOR FOR MALFUNCTION

•  Inspect the applicable connector and terminal.
(See CONNECTOR INSPECTION.)

•  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 MAF SENSOR/IAT SENSOR No.1 INSTALLATION CONDITION

•  Verify the MAF sensor/IAT sensor No.1 installation condition.

•  Is there looseness or dislodging in the installation?

Yes

Repair or replace the malfunctioning location and perform the repair completion verification.

(See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [SKYACTIV-D 1.8].)

No

Go to the next step.

6

INSPECT PCM CONNECTOR FOR MALFUNCTION

•  Inspect the applicable connector and terminal.
(See CONNECTOR INSPECTION.)

•  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.

7

INSPECT INTAKE AIR SYSTEM FOR AIR SUCTION

•  Visually inspect the intake air system (between MAF sensor and intake manifold) for looseness, damage, and loss.

•  Is the intake air system normal?

Yes

Go to the next step.

No

Repair or replace the malfunctioning location and perform the repair completion verification.

(See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [SKYACTIV-D 1.8].)

8

INSPECT INTAKE AIR SYSTEM PIPING FOR CLOGGING

•  Inspect the intake air system piping (between MAF sensor and intake manifold).

•  Is there any clogging?

Yes

Repair or replace the malfunctioning location and perform the repair completion verification.

(See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [SKYACTIV-D 1.8].)

No

Go to the next step.

9

INSPECT EGR SYSTEM FOR EXHAUST GAS LEAKAGE AND RESTRICTION

•  Inspect the following EGR system for exhaust gas leakage and restriction.

•  Is the EGR system piping normal?

Yes

Go to the next step.

No

Repair or replace the malfunctioning location, then go to repair completion verification.

(See EXHAUST SYSTEM REMOVAL/INSTALLATION [SKYACTIV-D 1.8].)

10

INSPECT MAF SENSOR FOR MALFUNCTION

•  Inspect the applicable part.
(See MASS AIR FLOW (MAF) SENSOR INSPECTION [SKYACTIV-D 1.8].)

•  Is the part normal?

Yes

Go to the next step.

No

Repair or replace the malfunctioning location and perform the repair completion verification.

(See EXHAUST SYSTEM REMOVAL/INSTALLATION [SKYACTIV-D 1.8].)

11

INSPECT TURBOCHARGER FOR MALFUNCTION

•  Inspect the applicable part.
(See TURBOCHARGER WITH VARIABLE TURBINE GEOMETRY INSPECTION [SKYACTIV-D 1.8].)

•  Is the part normal?

Yes

Go to the next step.

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.
(See CLEARING DTC.)

•  Replicate the vehicle conditions at the time the DTC was detected using the following procedure.

―  Start the engine and warm it up.

―  After accelerating the vehicle to 80 km/h, decelerate for 20 s or more using engine braking. Repeat this 2 times or more.

•  Perform the DTC inspection for the PCM.
(See DTC INSPECTION.)

•  Is the same Pending DTC present?

Yes

Refer to the controller area network (CAN) malfunction diagnosis flow to inspect for a CAN communication error.

(See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [(E)].)

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.
(See PCM REMOVAL/INSTALLATION [SKYACTIV-D 1.8].)

No

Go to the next step.

Repair completion verification 2

VERIFY IF OTHER DTCs DISPLAYED

•  Perform the DTC inspection.
(See DTC INSPECTION.)

•  Are any other DTCs displayed?

Yes

Repair the malfunctioning location according to the applicable DTC troubleshooting.

No

DTC troubleshooting completed.

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.
2		No	Go to the next step.
3	INSPECT FOR OTHER RELATED DTCs • Perform the DTC inspection for the PCM. (See DTC INSPECTION.) • Are any other DTCs displayed?	Yes	Repair the malfunctioning location according to the applicable DTC troubleshooting. (See DTC TABLE [PCM (SKYACTIV-D)].)
3		No	Go to the next step.
4	INSPECT MAF/IAT SENSOR No.1 CONNECTOR FOR MALFUNCTION • Inspect the applicable connector and terminal. (See CONNECTOR INSPECTION.) • Are the connector and terminal normal?	Yes	Go to the next step.
4		No	Repair or replace the malfunctioning location and perform the repair completion verification.
5	INSPECT MAF SENSOR/IAT SENSOR No.1 INSTALLATION CONDITION • Verify the MAF sensor/IAT sensor No.1 installation condition. • Is there looseness or dislodging in the installation?	Yes	Repair or replace the malfunctioning location and perform the repair completion verification. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [SKYACTIV-D 1.8].)
5		No	Go to the next step.
6	INSPECT PCM CONNECTOR FOR MALFUNCTION • Inspect the applicable connector and terminal. (See CONNECTOR INSPECTION.) • Are the connector and terminal normal?	Yes	Go to the next step.
6		No	Repair or replace the malfunctioning location and perform the repair completion verification.
7	INSPECT INTAKE AIR SYSTEM FOR AIR SUCTION • Visually inspect the intake air system (between MAF sensor and intake manifold) for looseness, damage, and loss. • Is the intake air system normal?	Yes	Go to the next step.
7		No	Repair or replace the malfunctioning location and perform the repair completion verification. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [SKYACTIV-D 1.8].)
8	INSPECT INTAKE AIR SYSTEM PIPING FOR CLOGGING • Inspect the intake air system piping (between MAF sensor and intake manifold). • Is there any clogging?	Yes	Repair or replace the malfunctioning location and perform the repair completion verification. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [SKYACTIV-D 1.8].)
8		No	Go to the next step.
9	INSPECT EGR SYSTEM FOR EXHAUST GAS LEAKAGE AND RESTRICTION • Inspect the following EGR system for exhaust gas leakage and restriction. • Is the EGR system piping normal?	Yes	Go to the next step.
9		No	Repair or replace the malfunctioning location, then go to repair completion verification. (See EXHAUST SYSTEM REMOVAL/INSTALLATION [SKYACTIV-D 1.8].)
10	INSPECT MAF SENSOR FOR MALFUNCTION • Inspect the applicable part. (See MASS AIR FLOW (MAF) SENSOR INSPECTION [SKYACTIV-D 1.8].) • Is the part normal?	Yes	Go to the next step.
10		No	Repair or replace the malfunctioning location and perform the repair completion verification. (See EXHAUST SYSTEM REMOVAL/INSTALLATION [SKYACTIV-D 1.8].)
11	INSPECT TURBOCHARGER FOR MALFUNCTION • Inspect the applicable part. (See TURBOCHARGER WITH VARIABLE TURBINE GEOMETRY INSPECTION [SKYACTIV-D 1.8].) • Is the part normal?	Yes	Go to the next step.
11		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. (See CLEARING DTC.) • Replicate the vehicle conditions at the time the DTC was detected using the following procedure. ― Start the engine and warm it up. ― After accelerating the vehicle to 80 km/h, decelerate for 20 s or more using engine braking. Repeat this 2 times or more. • Perform the DTC inspection for the PCM. (See DTC INSPECTION.) • Is the same Pending DTC present?	Yes	Refer to the controller area network (CAN) malfunction diagnosis flow to inspect for a CAN communication error. (See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [(E)].) 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. (See PCM REMOVAL/INSTALLATION [SKYACTIV-D 1.8].)
Repair completion verification 1		No	Go to the next step.
Repair completion verification 2	VERIFY IF OTHER DTCs DISPLAYED • Perform the DTC inspection. (See DTC INSPECTION.) • Are any other DTCs displayed?	Yes	Repair the malfunctioning location according to the applicable DTC troubleshooting.
Repair completion verification 2		No	DTC troubleshooting completed.