RM35X0E _51 Engine / Hybrid System _078720 7GR-FKS ENGINE CONTROL _0381907 SFI SYSTEM C

7GR-FKS 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>7GR-FKS (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 The intake air temperature sensor output voltage is higher than 4.91 V for 0.5 seconds or more (1 trip detection logic).
·

Open or short in intake air temperature sensor circuit

·

Intake air temperature sensor (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 E2G circuit



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


MONITOR DESCRIPTION

The ECM monitors the sensor voltage and uses this value to calculate the intake air temperature. When the intake air temperature sensor output voltage deviates from the normal operating range, the ECM interprets this as a malfunction in the intake air temperature sensor circuit and stores this DTC.

Example:

If the intake air temperature sensor output voltage is higher than 4.91 V for 0.5 seconds or more, the ECM stores this DTC.

MONITOR STRATEGY

Frequency of Operation Continuous

CONFIRMATION DRIVING PATTERN

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.

Turn the ignition switch to ON.

7.

Turn the GTS on.

8.

Wait 0.5 seconds or more.

9.

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

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: P011015.

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 is NORMAL, the system is normal.

·

If the judgment result is ABNORMAL, the system is malfunctioning.




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.READ VALUE USING GTS (CHECK FOR OPEN IN WIRE HARNESS)
A376960C40
4.49,1.427 4.833,1.667 0.344,0.24 5.313,2.073 5.583,1.552 true 6.219,2.083 5.958,1.552 true 4.552,1.469 4.865,1.667 0.313,0.198 10 false E20 4.135,0.677 4.448,0.875 0.313,0.198 10 false *a 1.135,0.719 1.448,0.917 0.313,0.198 10 false *1 2.781,0.688 3.146,0.875 0.365,0.188 10 false *2 2.698,1.344 3.063,1.531 0.365,0.188 10 false THA 2.698,1.719 3.063,1.906 0.365,0.188 10 false E2G 1.281,1.667 1.646,1.854 0.365,0.188 10 false E2G 5.135,2.083 5.5,2.271 0.365,0.188 10 false E2G 6.125,2.083 6.49,2.271 0.365,0.188 10 false THA 1.292,1.344 1.656,1.531 0.365,0.188 10 false THA
*1 Mass Air Flow Meter Sub-assembly *2 ECM
*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.

Connect terminals 4 (THA) and 2 (E2G) of the mass air flow meter sub-assembly 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.

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

OK:
GTS Display Specified Condition
Intake Air Temperature Higher than 138°C (280°F)


HINT:

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

Click hereEngine / Hybrid System>7GR-FKS (ENGINE CONTROL)>SFI SYSTEM>INITIALIZATION



Result:
Proceed to
OK
NG



OK

REPLACE MASS AIR FLOW METER SUB-ASSEMBLY

Click hereEngine / Hybrid System>7GR-FKS (ENGINE CONTROL)>MASS AIR FLOW METER>REMOVAL


NG

2.CHECK HARNESS AND CONNECTOR (MASS AIR FLOW METER SUB-ASSEMBLY - ECM)
2.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
E20-4 (THA) - E1-22 (THA) Always Below 1 Ω
E20-2 (E2G) - E3-20 (E2G) Always Below 1 Ω
E20-4 (THA) or E1-22 (THA) - Other terminals Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

REPLACE ECM

Click hereEngine / Hybrid System>7GR-FKS (ENGINE CONTROL)>ECM>REMOVAL


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR