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

NR Series ENGINE CONTROL  SFI SYSTEM  P023515  Turbocharger/Supercharger Boost Sensor "A" Circuit Short to Battery or Open  


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
P023515 Turbocharger/Supercharger Boost Sensor "A" Circuit Short to Battery or Open Diagnosis Condition:
·

Ignition switch ON


Abnormal condition:
·

The No. 1 turbo pressure sensor output voltage is higher than 4.63 V.


Malfunction Time:
·

3 seconds or more


Trip logic:
·

1 trip detection logic


Detection Conditions:
·

Continuous


Sensors/components used for detection:
·

No. 1 turbo pressure sensor


·

Open or short in No. 1 turbo pressure sensor circuit

·

No. 1 turbo pressure sensor

·

ECM


Comes on DTC stored SAE Code: P0238

HINT:

When this DTC is output, check the No. 1 turbo pressure sensor in the Data List. Enter the following menus: Powertrain / Engine / Data List / Boost Pressure Sensor.

DTC No. Boost Pressure Sensor Malfunction
P023515 Higher than 314 kPa (46 psi)
·

Short to +B in PTA circuit

·

Open in PTA circuit

·

Open in EPTA circuit



If the Data List values is normal it may be due to a temporary recovery from the malfunction condition. Check for intermittent problems.

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


MONITOR DESCRIPTION

When the ignition switch is turned to ON and the output voltage of the No. 1 turbo pressure sensor is higher than 4.63 V for 3 seconds or more, the ECM determines that the No. 1 turbo pressure sensor circuit is malfunctioning and illuminates the MIL and stores a DTC.

MONITOR STRATEGY

Required Sensors/Components No. 1 turbo pressure sensor
Frequency of Operation Continuous

CAUTION / NOTICE / HINT

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 HARNESS AND CONNECTOR (NO. 1 TURBO PRESSURE SENSOR - BODY GROUND)
HINT:

Make sure that the connector is properly connected. If it is not, securely connect it and check for DTCs again.


a.

Disconnect the No. 1 turbo pressure sensor connector.


b.

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

Standard Resistance:
Tester Connection Condition Specified Condition
C23-2 (E2) - Body ground Always Below 1 Ω



Result:
Proceed to
OK
NG



OK

2.CHECK TERMINAL VOLTAGE (NO. 1 TURBO PRESSURE SENSOR)

NG

7.CHECK HARNESS AND CONNECTOR (NO. 1 TURBO PRESSURE SENSOR - ECM)
2.CHECK TERMINAL VOLTAGE (NO. 1 TURBO PRESSURE SENSOR)
A376494C66
0.208,1.01 0.563,1.208 0.354,0.198 0.833,1.833 1.156,1.135 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
*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
C23-1 (PIM) - Body ground Ignition switch ON 3.0 to 5.25 V


Result:
Result Proceed to
Higher than 5.25 V A
3.0 to 5.25 V B
Below 3.0 V C




A

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

B

4.CHECK INTERNAL RESISTANCE (ECM)

C

6.CHECK HARNESS AND CONNECTOR (NO. 1 TURBO PRESSURE SENSOR - ECM)
3.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
C23-1 (PIM) or C78-108 (PTA) - 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

4.CHECK INTERNAL RESISTANCE (ECM)
a.

Turn the ignition switch off.


b.

Disconnect the No. 1 turbo pressure sensor connector.


c.

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

Standard Resistance:
Tester Connection Condition Specified Condition
C23-3 (VC) - C23-1 (PIM) Ignition switch off 171 to 189 kΩ



HINT:

As voltage is still supplied to the ECM after the ignition switch is turned off, this check cannot be performed correctly during the shut-down process.


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

5.CHECK HARNESS AND CONNECTOR (NO. 1 TURBO PRESSURE SENSOR - ECM)
5.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) - C23-1 (PIM) or C78-140 (VPTA) - C78-108 (PTA) 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

6.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
C23-1 (PIM) - C78-108 (PTA) Always Below 1 Ω



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

7.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
C23-2 (E2) - C78-139 (EPTA) Always Below 1 Ω



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