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

NR Series ENGINE CONTROL  SFI SYSTEM  P011015  Intake Air Temperature Sensor 1 Bank 1 Circuit Short to Battery or Open  


DESCRIPTION

Refer to DTC P011011.

Click hereEngine / Hybrid System>NR Series (ENGINE CONTROL)>SFI SYSTEM>P011011

HINT:

When DTC P011015 is stored, the ECM enters fail-safe mode. During fail-safe mode, the intake air temperature is estimated to be 20°C (68°F) by the ECM. Fail-safe mode continues until a pass condition is detected, and the ignition switch is then turned off.


DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory Note
P011015 Intake Air Temperature Sensor 1 Bank 1 Circuit Short to Battery or Open Diagnosis Condition:
·

Ignition switch ON


Abnormal condition:
·

The intake air temperature sensor output voltage is higher than 4.91 V.


Malfunction Time:
·

0.5 seconds or more


Trip logic:
·

1 trip detection logic


Detection Conditions:
·

Continuous


Sensors/components used for detection:
·

Intake air temperature sensor


·

Open or short in intake air temperature sensor circuit

·

Mass air flow meter sub-assembly

·

ECM


Comes on DTC stored SAE Code:
P0113

HINT:

When this DTC is output, check the intake air temperature in the Data List. Enter the following menus: Powertrain / Engine / Data List / Intake Air Temperature.

DTC No. Intake Air Temperature Malfunction
P011015 -40°C (-40°F)
·

Short to +B in THA circuit

·

Open in THA circuit

·

Open in ETHA 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 intake air temperature sensor is higher than 4.91 V for 0.5 seconds or more, the ECM determines that the intake air temperature sensor circuit is malfunctioning and illuminates the MIL and stores a DTC.

MONITOR STRATEGY

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 TERMINAL VOLTAGE (INTAKE AIR TEMPERATURE SENSOR)
A127724C81
0.427,0.948 0.833,1.208 0.406,0.26 2.208,1.792 1.896,1.156 true 0.104,0.083 0.417,0.281 0.313,0.198 10 false *a 0.49,0.99 0.948,1.188 0.458,0.198 10 false C25 2.104,1.802 2.5,2.052 0.396,0.25 10 false THA
*a Front view of wire harness connector
(to Intake Air Temperature Sensor)


a.

Disconnect the intake air temperature 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
C25-4 (THA) - Body ground Ignition switch ON 0 to 5.5 V



Result:
Proceed to
OK
NG



OK

2.READ VALUE USING GTS (INTAKE AIR TEMPERATURE)

NG

4.CHECK HARNESS AND CONNECTOR (INTAKE AIR TEMPERATURE SENSOR - ECM)
2.READ VALUE USING GTS (INTAKE AIR TEMPERATURE)
A436607C02
4.594,1.417 4.938,1.677 0.344,0.26 5.427,2.198 5.802,1.604 true 6.396,2.229 5.99,1.604 true 1.646,2.063 1.958,2.26 0.313,0.198 10 false *1 1.854,1.229 2.313,1.427 0.458,0.198 10 false THA 1.958,1.51 2.271,1.708 0.313,0.198 10 false E2 3.031,1.208 3.49,1.406 0.458,0.198 10 false THA 3.042,1.51 3.656,1.708 0.615,0.198 10 false ETHA 3.323,2.083 3.635,2.281 0.313,0.198 10 false *2 4.771,0.542 5.083,0.74 0.313,0.198 10 false *a 4.635,1.458 5.094,1.656 0.458,0.198 10 false C25 5.281,2.229 5.74,2.427 0.458,0.198 10 false THA 6.323,2.271 6.635,2.469 0.313,0.198 10 false E2
*1 Intake Air Temperature Sensor *2 ECM
*a Front view of wire harness connector
(to Intake Air Temperature Sensor) 		- -


a.

Disconnect the intake air temperature sensor connector.


b.

Connect terminals 4 (THA) and 5 (E2) of the intake air temperature sensor connector on the wire harness side.


c.

Connect the GTS to the DLC3.


d.

Turn the ignition switch to ON.


e.

Turn the GTS on.


f.

Enter the following menus: Powertrain / Engine / Data List / Intake Air Temperature.

Powertrain > Engine > Data List
Tester Display
Intake Air Temperature
50003 372 214

g.

Read the value displayed on the GTS.

OK:
GTS Display Specified Condition
Intake Air Temperature Higher than 128°C (262°F)



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

3.CHECK HARNESS AND CONNECTOR (INTAKE AIR TEMPERATURE SENSOR - ECM)
3.CHECK HARNESS AND CONNECTOR (INTAKE AIR TEMPERATURE SENSOR - ECM)
a.

Disconnect the intake air temperature 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
C25-4 (THA) - C78-94 (THA) Always Below 1 Ω
C25-5 (E2) - C78-93 (ETHA) 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

4.CHECK HARNESS AND CONNECTOR (INTAKE AIR TEMPERATURE SENSOR - ECM)
a.

Disconnect the intake air temperature 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
C25-4 (THA) or C78-94 (THA) - 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