M20D-FKS ENGINE CONTROL  SFI SYSTEM  P203111  Exhaust Gas Temperature Sensor 2 Bank 1 Circuit Short to Ground  P203115  Exhaust Gas Temperature Sensor 2 Bank 1 Circuit Short to Battery or Open  

Refer to DTC P054411.

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HINT:

·

When DTC P203111 and P203115 is output, check the downstream exhaust gas temperature indicated by "Powertrain / Engine / Data List / Exhaust Temperature B1S2" using the GTS.

·

Sensor 2 represents the sensor located downstream of the GPF.

Reference:

Condition	Exhaust Temperature B1S2	No. 2 Exhaust Gas Temperature Sensor Condition
Idling with warm engine	Constant at between 50 and 400°C (122 and 752°F)	Normal
	0°C (32°F) or less	Open circuit
	1000°C (1832°F) or higher	Short circuit

The ECM constantly monitors the output voltages from the No. 2 exhaust gas temperature sensor in order to detect problems with the sensor.

No. 2 exhaust gas temperature sensor range check (low voltage) (P203111):

If the output voltage of the No. 2 exhaust gas temperature sensor remains below 0.09 V for 3 seconds or more during engine operation, the ECM illuminates the MIL and stores a DTC.

No. 2 exhaust gas temperature sensor range check (high voltage) (P203115):

If the estimated GPF downstream exhaust gas temperature is 100°C or more during engine operation and the output voltage of the No. 2 exhaust gas temperature sensor remains at more than 4.95 V for 10 seconds or more, the ECM illuminates the MIL and stores a DTC.

HINT:

·

After repair has been completed, clear the DTC and then check that the vehicle has returned to normal by performing the following All Readiness check procedure.

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·

When clearing the permanent DTCs, refer to the "CLEAR PERMANENT DTC" procedure.

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P203111

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 [A].

7.

Idle the engine for 3 seconds or more [B].

8.

Turn the GTS on.

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: P203111.

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 has a malfunction.

·

If the judgment result is INCOMPLETE, perform steps [A] through [C] again.

·

[A] to [C]: Normal judgment procedure.

The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.

·

When clearing the permanent DTCs, do not disconnect the cable from the battery terminal or attempt to clear the DTCs during this procedure, as doing so will clear the universal trip and normal judgment histories.

P203115

1.063,1.76 1.979,1.958 0.917,0.198 10 false Idling 0.813,1.031 2.042,1.229 1.229,0.198 10 false 2500 rpm 2.438,2.573 3.813,2.771 1.375,0.198 10 false 7 minutes 4.125,2.583 5.5,2.781 1.375,0.198 10 false 2 minutes 5.271,2.573 6.01,3.063 0.74,0.49 10 false 10 seconds or more 2.719,1.958 3.177,2.156 0.458,0.198 10 false [A] 4.365,1.229 4.823,1.427 0.458,0.198 10 false [B] 4.979,3.021 5.438,3.219 0.458,0.198 10 false [C] 5.969,3.031 6.427,3.229 0.458,0.198 10 false [E] 5.667,1.927 6.125,2.125 0.458,0.198 10 false [D] 0.583,0.458 2.417,0.656 1.833,0.198 10 false Engine Speed 6.625,2.313 7.094,2.635 0.469,0.323 10 false Time

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.

Start the engine and idle for 7 minutes [A].

9.

With the vehicle stationary, depress the accelerator pedal and maintain an engine speed of 2500 rpm for 2 minutes [B].

10.

Enter the following menus: Powertrain / Engine / Data List / GPF Outlet Exhaust Temperature Sensor Disconnection Detection Possible Temperature Arrival Bank 1.

11.

Check that the value of the Data List item "GPF Outlet Exhaust Temperature Sensor Disconnection Detection Possible Temperature Arrival Bank 1" has changed to "1" [C].

HINT:

If the value of the Data List item "GPF Outlet Exhaust Temperature Sensor Disconnection Detection Possible Temperature Arrival Bank 1" is "0", race the engine at 2500 rpm until the value changes to "1".

12.

Idle the engine for 10 seconds or more [D].

13.

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

14.

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.

15.

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

16.

Input the DTC: P203115.

17.

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 has a malfunction.

·

If the judgment result is INCOMPLETE, perform steps [A] through [E] again.

·

[A] to [E]: Normal judgment procedure.

The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.

·

When clearing the permanent DTCs, do not disconnect the cable from the battery terminal or attempt to clear the DTCs during this procedure, as doing so will clear the universal trip and normal judgment histories.

HINT:

Read freeze frame data using the GTS. Freeze frame data records the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, and other data from the time the malfunction occurred.