RM3660EC _51 Engine / Hybrid System _080777 NR Series ENGINE CONTROL _0393969 SFI SYSTEM C

NR Series ENGINE CONTROL  SFI SYSTEM  P023562  Turbocharger/Supercharger Boost Sensor "A" Signal Compare Failure  


DESCRIPTION

Refer to DTC P023511.

Click hereEngine / Hybrid System>NR Series (ENGINE CONTROL)>SFI SYSTEM>P023511

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory Note
P023562 Turbocharger/Supercharger Boost Sensor "A" Signal Compare Failure The discrepancy between the air volume estimated from the signals of the No. 1 turbo pressure sensor and the mass air flow meter equals or exceeds the threshold value (1 trip detection logic).
·

No. 2 turbo pressure sensor (intake air temperature sensor)

·

No. 1 turbo pressure sensor

·

Mass air flow meter sub-assembly

·

Intake system

·

Wire harness or connector

·

ECM


Does not come on DTC stored SAE Code: P0236

MONITOR DESCRIPTION

If the discrepancy between the air volume estimated from the signals of the No. 1 turbo pressure sensor and the mass air flow meter equals or exceeds the threshold value, the ECM stores a DTC.

CONFIRMATION DRIVING PATTERN

A330723E05
3.042,1.854 2.635,1.344 2.635,1.344 2.438,1.344 false 0.25,0.292 1.354,0.542 1.104,0.25 10 false Vehicle Speed 0.76,0.677 1.375,0.875 0.615,0.198 10 false 50 km/h 0.927,2.042 1.542,2.24 0.615,0.198 10 false Idling 0.396,2.365 1.313,2.75 0.917,0.385 10 false Ignition Switch ON 5.625,3.375 5.99,3.625 0.365,0.25 10 false [C] 1.427,1.26 2.729,1.563 1.302,0.302 10 false Fully depressed 2.198,1.885 2.656,2.083 0.458,0.198 10 false [A] 3.313,1.219 3.792,1.417 0.479,0.198 10 false [B]

1.

Connect the GTS to the DLC3.

2.

Turn the ignition switch to ON.

3.

Turn the GTS on.

4.

Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).

5.

Turn the ignition switch off and wait for at least 30 seconds.

6.

Start the engine and warm it up until the engine coolant temperature reaches 75°C (167°F) or higher [A].

7.

Turn the GTS on.

8.

Accelerate to 50 km/h (31 mph) or more with the accelerator pedal fully depressed [B].

CAUTION:

When performing the confirmation driving pattern, obey all speed limits and traffic laws.


9.

Enter the following menus: Powertrain / Engine / Trouble Codes [C].

10.

Read the pending DTCs.

HINT:
·

If a pending DTC is output, the system is malfunctioning.

·

If a pending DTC is not output, perform the following procedure.



11.

Enter the following menus: Powertrain / Engine / Utility / All Readiness.

12.

Input the DTC: P023562.

13.

Check the DTC judgment result.

GTS Display Description
NORMAL
·

DTC judgment completed

·

System normal


ABNORMAL
·

DTC judgment completed

·

System abnormal


INCOMPLETE
·

DTC judgment not completed

·

Perform driving pattern after confirming DTC enabling conditions



HINT:
·

If the judgment result shows NORMAL, the system is normal.

·

If the judgment result shows ABNORMAL, the system has a malfunction.

·

If the judgment result shows INCOMPLETE, perform steps [B] through [C] again.




CAUTION / NOTICE / HINT

NOTICE:

Inspect the fuses for circuits related to this system before performing the following procedure.


HINT:

Read Freeze Frame Data using the GTS. The ECM records vehicle and driving condition information as Freeze Frame Data the moment a DTC is stored. When troubleshooting, Freeze Frame Data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.


PROCEDURE

1.CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P023562)
a.

Connect the GTS to the DLC3.


b.

Turn the ignition switch to ON.


c.

Turn the GTS on.


d.

Enter the following menus: Powertrain / Engine / Trouble Codes.


e.

Read the DTCs.

Powertrain > Engine > Trouble Codes
50001 372
Result:
Result Proceed to
DTC P023562 is output A
DTC P023562 and other DTCs are output B


HINT:

If any DTCs other than P023562 are output, troubleshoot those DTCs first.




A

2.READ VALUE USING GTS (ATMOSPHERIC PRESSURE)

B

GO TO DTC CHART

Click hereEngine / Hybrid System>NR Series (ENGINE CONTROL)>SFI SYSTEM>DIAGNOSTIC TROUBLE CODE CHART


2.READ VALUE USING GTS (ATMOSPHERIC PRESSURE)
a.

Connect the GTS to the DLC3.


b.

Turn the ignition switch to ON.


c.

Enter the following menus: Powertrain / Engine / Data List / Atmospheric Pressure.

Powertrain > Engine > Data List
Tester Display
Atmospheric Pressure
50003 372 229

d.

Using the following table, determine the normal atmospheric pressure for the current altitude and temperature.

A337505

HINT:
·

Standard atmospheric pressure is approximately 101 kPa(abs) (15 psi(abs)).

·

For every 100 m (328 ft.) increase in altitude, atmospheric pressure drops by approximately 1 kPa (0.15 psi). This varies depending on the weather.




e.

Compare the value of Atmospheric Pressure with the normal atmospheric pressure in the table.

Result:
Result Proceed to
Other than below A
Difference between value of Atmospheric Pressure and normal atmospheric pressure is 10 kPa (1.45 psi) or higher B




A

3.READ VALUE USING GTS (INTAKE AIR TEMPERATURE B1S1 (TURBO))

B

REPLACE ECM

Click hereEngine / Hybrid System>NR Series (ENGINE CONTROL)>ECM>REMOVAL


3.READ VALUE USING GTS (INTAKE AIR TEMPERATURE B1S1 (TURBO))
a.

Remove the No. 2 turbo pressure sensor.

HINT:

Do not disconnect the connector.



b.

Connect the GTS to the DLC3.


c.

Turn the ignition switch to ON.


d.

Turn the GTS on.


e.

Enter the following menus: Powertrain / Engine / Data List / Intake Air Temperature B1S1 (Turbo).

Powertrain > Engine > Data List
Tester Display
Intake Air Temperature B1S1 (Turbo)
50003 372 310

f.

According to the display on the GTS, read the Data List.

Result:
Result Proceed to
Other than below A
Difference between value of Intake Air Temperature B1S1 (Turbo) and actual ambient air temperature is 10°C (18°F) or higher B




A

4.INSPECT MASS AIR FLOW METER SUB-ASSEMBLY

B

16.INSPECT INTAKE AIR TEMPERATURE SENSOR
4.INSPECT MASS AIR FLOW METER SUB-ASSEMBLY
a.

Inspect the mass air flow meter sub-assembly, referring to On-vehicle Inspection for Mass Air Flow Meter.

Click hereEngine / Hybrid System>NR Series (ENGINE CONTROL)>MASS AIR FLOW METER>ON-VEHICLE INSPECTION


b.

Inspect the mass air flow meter sub-assembly, referring to Inspection for Mass Air Flow Meter.

Click hereEngine / Hybrid System>NR Series (ENGINE CONTROL)>MASS AIR FLOW METER>INSPECTION


c.

Inspect the operation of the mass air flow meter sub-assembly.

i.

Connect the GTS to the DLC3.


ii.

Start the engine.


iii.

Turn the GTS on.


iv.

Enter the following menus: Powertrain / Engine / Data List / Engine Speed, Mass Air Flow Sensor and Coolant Temperature.

Powertrain > Engine > Data List
Tester Display
Engine Speed
Mass Air Flow Sensor
Coolant Temperature
50003 372 211,215,205

v.

Allow the engine to idle until Coolant Temperature reaches 75°C (167°F) or higher.


vi.

Read Mass Air Flow Sensor while maintaining an engine speed of 3000 rpm.

Standard:
GTS Display Condition Specified Condition
Mass Air Flow Sensor
·

Shift lever position: P

·

A/C: Off

·

Engine warmed up

·

Engine Speed: 3000 rpm


Between 4.0 and 14.0 gm/sec




Result:
Proceed to
OK
NG



OK

5.INSPECT NO. 1 TURBO PRESSURE SENSOR

NG

14.CHECK TERMINAL VOLTAGE (POWER SOURCE OF MASS AIR FLOW METER SUB-ASSEMBLY)
5.INSPECT NO. 1 TURBO PRESSURE SENSOR
a.

Inspect the No. 1 turbo pressure sensor.

Click hereEngine / Hybrid System>NR Series (ENGINE CONTROL)>MANIFOLD ABSOLUTE PRESSURE SENSOR>ON-VEHICLE INSPECTION


Result:
Proceed to
OK
NG



OK

6.CHECK INTAKE SYSTEM

NG

12.CHECK TERMINAL VOLTAGE (POWER SOURCE OF NO. 1 TURBO PRESSURE SENSOR)
6.CHECK INTAKE SYSTEM
a.

Check the intake system for vacuum leaks and blockage.

Click hereEngine / Hybrid System>NR Series (INTAKE / EXHAUST)>INTAKE SYSTEM>ON-VEHICLE INSPECTION

OK:

No leaks or blockage.



HINT:

Perform "Inspection After Repair" after repairing or replacing the intake system.

Click hereEngine / Hybrid System>NR Series (ENGINE CONTROL)>SFI SYSTEM>INITIALIZATION


Result:
Proceed to
OK
NG



OK

7.CLEAR DTC

NG

REPAIR OR REPLACE INTAKE SYSTEM

7.CLEAR DTC
a.

Connect the GTS to the DLC3.


b.

Turn the ignition switch to ON.


c.

Turn the GTS on.


d.

Clear the DTCs.

Powertrain > Engine > Clear DTCs
50002 372

e.

Turn the ignition switch off and wait for at least 30 seconds.


Result:
Proceed to
NEXT



NEXT

8.CHECK WHETHER DTC OUTPUT RECURS (DTC P023562)
8.CHECK WHETHER DTC OUTPUT RECURS (DTC P023562)
a.

Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern.


b.

Enter the following menus: Powertrain / Engine / Utility / All Readiness.

Powertrain > Engine > Utility
Tester Display
All Readiness
50005 372 20

c.

Input the DTC: P023562.


d.

Check the DTC judgment result.

Result:
Result Proceed to
NORMAL
(DTCs are not output) 		A
ABNORMAL
(DTC P023562 is output) 		B




A

CHECK FOR INTERMITTENT PROBLEMS

Click hereEngine / Hybrid System>NR Series (ENGINE CONTROL)>SFI SYSTEM>CHECK FOR INTERMITTENT PROBLEMS


B

9.REPLACE NO. 1 TURBO PRESSURE SENSOR
9.REPLACE NO. 1 TURBO PRESSURE SENSOR
a.

Replace the No. 1 turbo pressure sensor.

Click hereEngine / Hybrid System>NR Series (ENGINE CONTROL)>MANIFOLD ABSOLUTE PRESSURE SENSOR>REMOVAL


Result:
Proceed to
NEXT



NEXT

10.CLEAR DTC
10.CLEAR DTC
a.

Connect the GTS to the DLC3.


b.

Turn the ignition switch to ON.


c.

Turn the GTS on.


d.

Clear the DTCs.

Powertrain > Engine > Clear DTCs
50002 372

e.

Turn the ignition switch off and wait for at least 30 seconds.


Result:
Proceed to
NEXT



NEXT

11.CHECK WHETHER DTC OUTPUT RECURS (DTC P023562)
11.CHECK WHETHER DTC OUTPUT RECURS (DTC P023562)
a.

Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern.


b.

Enter the following menus: Powertrain / Engine / Utility / All Readiness.

Powertrain > Engine > Utility
Tester Display
All Readiness
50005 372 20

c.

Input the DTC: P023562.


d.

Check the DTC judgment result.

Result:
Result Proceed to
NORMAL
(DTCs are not output) 		A
ABNORMAL
(DTC P023562 is output) 		B




A

END

B

REPLACE ECM

Click hereEngine / Hybrid System>NR Series (ENGINE CONTROL)>ECM>REMOVAL


12.CHECK TERMINAL VOLTAGE (POWER SOURCE OF NO. 1 TURBO PRESSURE SENSOR)
A376494C30
0.208,1.01 0.563,1.208 0.354,0.198 0.833,1.833 1.156,1.135 true 1.531,1.833 1.531,1.167 true 2.198,1.833 1.865,1.167 true 0.115,0.094 0.427,0.292 0.313,0.198 10 false *a 0.729,1.854 1.052,2.094 0.323,0.24 10 false PIM 0.25,1.021 0.708,1.219 0.458,0.198 10 false C23 1.438,1.833 1.75,2.031 0.313,0.198 10 false E2 2.146,1.844 2.458,2.042 0.313,0.198 10 false VC
*a Front view of wire harness connector
(to No. 1 Turbo Pressure Sensor)


a.

Disconnect the No. 1 turbo pressure sensor connector.


b.

Turn the ignition switch to ON.


c.

Measure the voltage according to the value(s) in the table below.

Standard Voltage:
Tester Connection Condition Specified Condition
C23-3 (VC) - C23-2 (E2) Ignition switch ON 4.75 to 5.25 V
C23-1 (PIM) - C23-2 (E2) Ignition switch ON 3.0 to 5.25 V



Result:
Proceed to
OK
NG



OK

REPLACE NO. 1 TURBO PRESSURE SENSOR

Click hereEngine / Hybrid System>NR Series (ENGINE CONTROL)>MANIFOLD ABSOLUTE PRESSURE SENSOR>REMOVAL


NG

13.CHECK HARNESS AND CONNECTOR (NO. 1 TURBO PRESSURE SENSOR - ECM)
13.CHECK HARNESS AND CONNECTOR (NO. 1 TURBO PRESSURE SENSOR - ECM)
a.

Disconnect the No. 1 turbo pressure sensor connector.


b.

Disconnect the ECM connector.


c.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
C23-3 (VC) - C78-140 (VPTA) Always Below 1 Ω
C23-1 (PIM) - C78-108 (PTA) Always Below 1 Ω
C23-2 (E2) - C78-139 (EPTA) Always Below 1 Ω
C23-3 (VC) or C78-140 (VPTA) - Body ground and other terminals Always 10 kΩ or higher
C23-1 (PIM) or C78-108 (PTA) - Body ground and other terminals Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

REPLACE ECM

Click hereEngine / Hybrid System>NR Series (ENGINE CONTROL)>ECM>REMOVAL


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

14.CHECK TERMINAL VOLTAGE (POWER SOURCE OF MASS AIR FLOW METER SUB-ASSEMBLY)
A127724C66
0.333,0.948 0.719,1.167 0.385,0.219 1.01,1.719 1.365,1.146 true 0.156,0.135 0.469,0.333 0.313,0.198 10 false *a 0.396,0.979 0.708,1.177 0.313,0.198 10 false C25 0.938,1.76 1.25,1.958 0.313,0.198 10 false +B
*a Front view of wire harness connector
(to Mass Air Flow Meter Sub-assembly)


a.

Disconnect the mass air flow meter sub-assembly connector.


b.

Turn the ignition switch to ON.


c.

Measure the voltage according to the value(s) in the table below.

Standard Voltage:
Tester Connection Condition Specified Condition
C25-1 (+B) - Body ground Ignition switch ON 11 to 14 V



Result:
Proceed to
OK
NG



OK

15.CHECK HARNESS AND CONNECTOR (MASS AIR FLOW METER SUB-ASSEMBLY - ECM)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR (NO. 1 INTEGRATION RELAY - MASS AIR FLOW METER SUB-ASSEMBLY)

15.CHECK HARNESS AND CONNECTOR (MASS AIR FLOW METER SUB-ASSEMBLY - ECM)
a.

Disconnect the mass air flow meter sub-assembly connector.


b.

Disconnect the ECM connector.


c.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
C25-3 (VG) - C78-92 (VG) Always Below 1 Ω
C25-2 (E2G) - C78-91 (E2G) Always Below 1 Ω
C25-3 (VG) or C78-92 (VG) - Body ground and other terminals Always 10 kΩ or higher



HINT:

Perform "Inspection After Repair" after replacing the mass air flow meter sub-assembly.

Click hereEngine / Hybrid System>NR Series (ENGINE CONTROL)>SFI SYSTEM>INITIALIZATION


Result:
Proceed to
OK
NG



OK

REPLACE MASS AIR FLOW METER SUB-ASSEMBLY

Click hereEngine / Hybrid System>NR Series (ENGINE CONTROL)>MASS AIR FLOW METER>REMOVAL


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

16.INSPECT INTAKE AIR TEMPERATURE SENSOR
a.

Inspect the intake air temperature sensor.

Click hereEngine / Hybrid System>NR Series (ENGINE CONTROL)>MANIFOLD ABSOLUTE PRESSURE SENSOR>INSPECTION


Result:
Proceed to
OK
NG



OK

17.CHECK HARNESS AND CONNECTOR (NO. 2 TURBO PRESSURE SENSOR - ECM)

NG

REPLACE NO. 2 TURBO PRESSURE SENSOR

Click hereEngine / Hybrid System>NR Series (ENGINE CONTROL)>MANIFOLD ABSOLUTE PRESSURE SENSOR>REMOVAL


17.CHECK HARNESS AND CONNECTOR (NO. 2 TURBO PRESSURE SENSOR - ECM)
a.

Disconnect the No. 2 turbo pressure sensor connector.


b.

Disconnect the ECM connector.


c.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
C99-4 (THIM) - C78-107 (THIM) Always Below 1 Ω
C99-2 (E2) - C78-137 (EPIM) Always Below 1 Ω
C99-4 (THIM) or C78-107 (THIM) - Body ground and other terminals Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

REPLACE ECM

Click hereEngine / Hybrid System>NR Series (ENGINE CONTROL)>ECM>REMOVAL


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR