RM38T0EC _51 Engine / Hybrid System _144956 M20F-FXS, M20G-FXS ENGINE CONTROL _0604911 SFI SYSTEM C

M20F-FXS, M20G-FXS ENGINE CONTROL SFI SYSTEM P054411 Exhaust Gas Temperature Sensor 1 Bank 1 Circuit Short to Ground P054415 Exhaust Gas Temperature Sensor 1 Bank 1 Circuit Short to Battery or Open

DESCRIPTION

5.719,4.677 5.875,4.677 false 1.76,5.427 1.875,5.427 false 1.729,2.51 1.125,2.958 true 2.365,1.427 2.979,0.385 2.979,0.385 4.125,0.385 false 2.417,2.896 3.833,3.333 3.833,3.333 4,3.333 true 4.198,0.292 6.76,0.688 2.563,0.396 10 false No. 1 Exhaust Gas Temperature Sensor 1.521,0.542 2.365,0.719 0.844,0.177 10 false Exhaust Gas 3.167,0.927 3.531,1.094 0.365,0.167 10 false ECM 0.219,2.906 1.177,3.479 0.958,0.573 10 false Gasoline Particulate Filter 0.271,3.594 2.01,3.781 1.74,0.188 10 false Property of Output Voltage: 0.167,3.958 2.198,4.156 2.031,0.198 10 false Exhaust Gas Temperature (°C) 1.26,4.25 2.063,4.417 0.802,0.167 10 false 1000 1.323,4.417 2.021,4.583 0.698,0.167 10 false 960 1.323,4.646 2.021,4.813 0.698,0.167 10 false 760 1.323,4.875 2.021,5.042 0.698,0.167 10 false 560 1.323,5.104 1.948,5.271 0.625,0.167 10 false 360 1.323,5.344 1.958,5.51 0.635,0.167 10 false 160 1.469,5.604 2.052,5.771 0.583,0.167 10 false 0 1.573,5.688 1.677,5.875 0.104,0.188 10 false 0 1.677,5.698 2.031,5.927 0.354,0.229 10 false 0.09 1.99,5.688 2.229,5.875 0.24,0.188 10 false 0.5 2.396,5.688 2.635,5.875 0.24,0.188 10 false 1.0 2.844,5.688 3.083,5.875 0.24,0.188 10 false 1.5 3.271,5.688 3.51,5.875 0.24,0.188 10 false 2.0 3.719,5.688 3.958,5.875 0.24,0.188 10 false 2.5 4.177,5.688 4.417,5.875 0.24,0.188 10 false 3.0 4.615,5.688 4.948,5.938 0.333,0.25 10 false 3.5 5.031,5.688 5.458,5.969 0.427,0.281 10 false 4.0 5.458,5.688 5.677,5.875 0.219,0.188 10 false 4.5 5.708,5.688 6.021,5.875 0.313,0.188 10 false 4.95 6.021,5.688 6.25,5.875 0.229,0.188 10 false 5.0 2.635,6.104 5.51,6.313 2.875,0.208 10 false Exhaust Gas Temperature Sensor Voltage (V) 2,5.354 4.729,5.573 2.729,0.219 10 false Stores P054411 or P203111 4.073,3.25 6.688,3.625 2.615,0.375 10 false No. 2 Exhaust Gas Temperature Sensor 3.969,4.594 6.698,4.813 2.729,0.219 10 false Stores P054415 or P203115

The exhaust gas temperature sensors are installed before and after the GPF catalyst to sense the exhaust gas temperature.

A thermistor built into the sensor changes its resistance value according to the exhaust gas temperature. The lower the exhaust gas temperature, the higher the thermistor resistance value. The higher the exhaust gas temperature, the lower the thermistor resistance value.

The exhaust gas temperature sensor is powered by a 5 V supply from the THCI and THCO terminals of the ECM, via resistor R.

Resistor R and the exhaust gas temperature sensor are connected in series. When the resistance value of the exhaust gas temperature sensor changes in accordance with the exhaust gas temperature, the voltage at terminals THCI and THCO also changes. The No. 1 exhaust gas temperature sensor monitors the temperature upstream of the GPF catalyst. The No. 2 exhaust gas temperature sensor monitors the rise in temperature of the GPF catalyst. The ECM uses 2 sensors in order to detect loss of function of the GPF.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	MIL	Note
P054411	Exhaust Gas Temperature Sensor 1 Bank 1 Circuit Short to Ground	Exhaust gas temperature sensor output voltage is less than 0.09 V for 3 seconds or more. (1 trip detection logic)	· Open or short in exhaust gas temperature sensor circuit · No. 1 exhaust gas temperature sensor · ECM	Comes on	SAE Code: P0545
P054415	Exhaust Gas Temperature Sensor 1 Bank 1 Circuit Short to Battery or Open	Exhaust gas temperature sensor output voltage is higher than 4.95 V for 10 seconds or more when all conditions are met: · Engine is running · Estimated GPF upstream exhaust gas temperature is 100°C (212°F) or more (2 trip detection logic)	· Open or short in exhaust gas temperature sensor circuit · No. 1 exhaust gas temperature sensor · ECM	Comes on	SAE Code: P0546

Related Data List
DTC No.	Data List
P054411 P054415	Exhaust Temperature B1S1

HINT:

Sensor 1 represents the sensor located upstream of the GPF catalyst.

When DTC P054411 and P054415 is output, check the exhaust gas temperature indicated by "Powertrain / Engine / Data List / Exhaust Temperature B1S1" using the GTS.

Reference:
Condition	Exhaust Temperature B1S1	No. 1 Exhaust Gas Temperature Sensor Condition
Idling with warm engine	Constant at between 50 and 400°C (122 and 752°F)	Normal
	Less than 40°C (104°F)	Open circuit
	Higher than 1775°C (3227°F)	Short circuit

MONITOR DESCRIPTION

The ECM constantly monitors the output voltages from the No. 1 exhaust gas temperature sensor in order to detect problems with the sensors.

No. 1 exhaust gas temperature sensor range check (low voltage) (P054411):: If the output voltage of the No. 1 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. 1 exhaust gas temperature sensor range check (high voltage) (P054415):: If the estimated GPF upstream exhaust gas temperature is 100°C or more during engine operation and the output voltage of the No. 1 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.

CONFIRMATION DRIVING PATTERN

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.

Click hereEngine / Hybrid System>M20F-FXS, M20G-FXS (ENGINE CONTROL)>SFI SYSTEM>DTC CHECK / CLEAR202307,999999,_51,_144956,_0604911,RM100000002BWPH,

·

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

Click hereEngine / Hybrid System>M20F-FXS, M20G-FXS (ENGINE CONTROL)>SFI SYSTEM>DTC CHECK / CLEAR202307,999999,_51,_144956,_0604911,RM100000002BWPH,

P054411

Connect the GTS to the DLC3.

Turn the ignition switch to ON.

Turn the GTS on.

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

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

Turn the ignition switch to ON.

Turn the GTS on.

Put the engine in Inspection Mode (Maintenance Mode).

Click hereGeneral>INTRODUCTION>REPAIR INSTRUCTION>INSPECTION MODE PROCEDURE202201,999999,_V1,_107171,_0486700,RM100000001XIMR,

Start the engine [A].

10.

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

11.

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

12.

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.

13.

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

14.

Input the DTC: P054411.

15.

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 auxiliary battery terminal or attempt to clear the DTCs during this procedure, as doing so will clear the universal trip and normal judgment histories.

P054415

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 5.281,2.583 6.042,3.094 0.76,0.51 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

Connect the GTS to the DLC3.

Turn the ignition switch to ON.

Turn the GTS on.

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

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

Turn the ignition switch to ON.

Turn the GTS on.

Put the engine in Inspection Mode (Maintenance Mode).

Click hereGeneral>INTRODUCTION>REPAIR INSTRUCTION>INSPECTION MODE PROCEDURE202201,999999,_V1,_107171,_0486700,RM100000001XIMR,

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

10.

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

11.

Enter the following menus: Powertrain / Engine / Data List / GPF Inlet Exhaust Temperature Sensor Disconnection Detection Possible Temperature Arrival Bank1.

12.

Check that the value of the Data List item "GPF Inlet Exhaust Temperature Sensor Disconnection Detection Possible Temperature Arrival Bank1" has changed to "1" [C].

HINT:: If the value of the Data List item "GPF Inlet Exhaust Temperature Sensor Disconnection Detection Possible Temperature Arrival Bank1" is "0", race the engine at 2500 rpm until the value changes to "1".

13.

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

14.

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

15.

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.

16.

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

17.

Input the DTC: P054415.

18.

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 auxiliary battery terminal or attempt to clear the DTCs during this procedure, as doing so will clear the universal trip and normal judgment histories.

WIRING DIAGRAM

6,2.385 6.458,2.583 0.458,0.198 10 false ECM 6,2.219 6.458,2.417 0.458,0.198 10 false C141 5.688,0.604 6.146,0.802 0.458,0.198 10 false THCI 3.698,0.479 3.854,0.677 0.156,0.198 10 false 1 2.104,0.479 2.26,0.677 0.156,0.198 10 false 2 5.344,0.479 5.635,0.667 0.292,0.188 10 false 105 5.354,1.667 5.646,1.865 0.292,0.198 10 false 104 5.688,1.792 6.146,1.99 0.458,0.198 10 false ETCI 2.01,1.177 4.5,1.854 2.49,0.677 10 false No. 1 Exhaust Gas Temperature Sensor 2,1 2.365,1.188 0.365,0.188 10 false C138 3.26,0.49 3.719,0.688 0.458,0.198 10 false THC3 2.323,0.49 2.781,0.688 0.458,0.198 10 false E2

CAUTION / NOTICE / HINT

NOTICE:: ·

Vehicle Control History may be stored in the hybrid vehicle control ECU if the engine is malfunctioning. Certain vehicle condition information is recorded when Vehicle Control History is stored. Reading the vehicle conditions recorded in both the freeze frame data and Vehicle Control History can be useful for troubleshooting.

Click hereEngine / Hybrid System>HYBRID / BATTERY CONTROL>HYBRID CONTROL SYSTEM>VEHICLE CONTROL HISTORY (RoB)202307,999999,_51,_144957,_0604232,RM100000002BTKF,

(Select Powertrain in Health Check and then check the time stamp data.)

·

If any "Engine Malfunction" Vehicle Control History item has been stored in the hybrid vehicle control ECU, make sure to clear it. However, as all Vehicle Control History items are cleared simultaneously, if any Vehicle Control History items other than "Engine Malfunction" are stored, make sure to perform any troubleshooting for them before clearing Vehicle Control History.

Click hereEngine / Hybrid System>HYBRID / BATTERY CONTROL>HYBRID CONTROL SYSTEM>VEHICLE CONTROL HISTORY (RoB)202307,999999,_51,_144957,_0604232,RM100000002BTKF,

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.

PROCEDURE

1.READ VALUE USING GTS (EXHAUST TEMPERATURE B1S1)

Read the value.

Powertrain > Engine > Data List

Tester Display
Exhaust Temperature B1S1

50003 372 1133

Standard:: Same as the actual exhaust gas temperature (50 to 400°C [122 to 752°F] during idling with warm engine), and varies after an engine speed of 2500 rpm is maintained for 1 minute.

Result:

Temperature Displayed	Proceed to
Less than 40°C (104°F) (After warming up the engine)	A
Higher than 1775°C (3227°F)	B
OK: Same as the actual exhaust gas temperature (50 to 400°C [122 to 752°F] during idling after warmup), and varies after maintaining an engine speed of 2500 rpm for 1 minute after accelerating the engine from idling to 2500 rpm	C

2.READ VALUE USING GTS (CHECK FOR OPEN IN WIRE HARNESS)

7.READ VALUE USING GTS (CHECK FOR SHORT IN WIRE HARNESS)

12.CLEAR DTC

2.READ VALUE USING GTS (CHECK FOR OPEN IN WIRE HARNESS)

1.417,2.417 1.844,2.667 0.427,0.25 2.25,3.917 1.813,3.219 true 1.198,3.917 1.635,3.219 true 1.563,0.708 2.177,0.906 0.615,0.198 10 false THC3 1.135,3.958 1.75,4.156 0.615,0.198 10 false E2 2.167,3.958 2.646,4.177 0.479,0.219 10 false THC3 1.458,2.448 2.073,2.646 0.615,0.198 10 false C138 1.677,1.385 1.99,1.583 0.313,0.198 10 false E2 0.573,1.552 0.885,1.708 0.313,0.156 10 false *1 2.5,1.792 2.813,1.948 0.313,0.156 10 false *2 0.75,2.427 1.063,2.583 0.313,0.156 10 false *a

*1	No. 1 Exhaust Gas Temperature Sensor
*2	ECM
*a	Front view of wire harness connector (to No. 1 Exhaust Gas Temperature Sensor)

Disconnect the No. 1 exhaust gas temperature sensor connector.

Connect terminals 1 (THC3) and 2 (E2) of the No. 1 exhaust gas temperature sensor connector on the wire harness side.

Read the value.

Powertrain > Engine > Data List

Tester Display
Exhaust Temperature B1S1

50003 372 1133

Standard:: Higher than 1775°C (3227°F)

Result:

Proceed to
OK
NG

3.REPLACE NO. 1 EXHAUST GAS TEMPERATURE SENSOR

4.CHECK HARNESS AND CONNECTOR (NO. 1 EXHAUST GAS TEMPERATURE SENSOR - ECM)

3.REPLACE NO. 1 EXHAUST GAS TEMPERATURE SENSOR

Click hereEngine / Hybrid System>M20F-FXS, M20G-FXS (EMISSION CONTROL)>EXHAUST GAS TEMPERATURE SENSOR (for Front)>REMOVAL202307,999999,_51,_144996,_0604314,RM100000002BTV4,

Result:

Proceed to
NEXT

12.CLEAR DTC

4.CHECK HARNESS AND CONNECTOR (NO. 1 EXHAUST GAS TEMPERATURE SENSOR - ECM)

Disconnect the No. 1 exhaust gas temperature sensor connector.

Disconnect the ECM connector.

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
C138-1 (THC3) - C141-105 (THCI)	Always	Below 1 Ω
C138-2 (E2) - C141-104 (ETCI)	Always	Below 1 Ω

Result:

Proceed to
OK
NG

5.REPLACE ECM

6.REPAIR OR REPLACE HARNESS OR CONNECTOR

5.REPLACE ECM

Click hereEngine / Hybrid System>M20F-FXS, M20G-FXS (ENGINE CONTROL)>ECM>REMOVAL202307,999999,_51,_144956,_0604220,RM100000002BTII,

Result:

Proceed to
NEXT

12.CLEAR DTC

6.REPAIR OR REPLACE HARNESS OR CONNECTOR

Repair or replace the harness or connector.

Result:

Proceed to
NEXT

12.CLEAR DTC

7.READ VALUE USING GTS (CHECK FOR SHORT IN WIRE HARNESS)

0.792,1.594 1.104,1.792 0.313,0.198 10 false *1 2.698,1.677 3.01,1.875 0.313,0.198 10 false *2

*1	No. 1 Exhaust Gas Temperature Sensor
*2	ECM

Disconnect the No. 1 exhaust gas temperature sensor connector.

Read the value.

Powertrain > Engine > Data List

Tester Display
Exhaust Temperature B1S1

50003 372 1133

Standard:: Less than 40°C (104°F)

Result:

Proceed to
OK
NG

8.REPLACE NO. 1 EXHAUST GAS TEMPERATURE SENSOR

9.CHECK HARNESS AND CONNECTOR (NO. 1 EXHAUST GAS TEMPERATURE SENSOR - ECM)

8.REPLACE NO. 1 EXHAUST GAS TEMPERATURE SENSOR

Click hereEngine / Hybrid System>M20F-FXS, M20G-FXS (EMISSION CONTROL)>EXHAUST GAS TEMPERATURE SENSOR (for Front)>REMOVAL202307,999999,_51,_144996,_0604314,RM100000002BTV4,

Result:

Proceed to
NEXT

12.CLEAR DTC

9.CHECK HARNESS AND CONNECTOR (NO. 1 EXHAUST GAS TEMPERATURE SENSOR - ECM)

Disconnect the No. 1 exhaust gas temperature sensor connector.

Disconnect the ECM connector.

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
C138-1 (THC3) or C141-105 (THCI) - Body ground and other terminals	Always	10 kΩ or higher

Result:

Proceed to
OK
NG

10.REPLACE ECM

11.REPAIR OR REPLACE HARNESS OR CONNECTOR

10.REPLACE ECM

Click hereEngine / Hybrid System>M20F-FXS, M20G-FXS (ENGINE CONTROL)>ECM>REMOVAL202307,999999,_51,_144956,_0604220,RM100000002BTII,

Result:

Proceed to
NEXT

12.CLEAR DTC

11.REPAIR OR REPLACE HARNESS OR CONNECTOR

Repair or replace the harness or connector.

Result:

Proceed to
NEXT

12.CLEAR DTC

Clear the DTCs.

Powertrain > Engine > Clear DTCs: 50002 372

Result:

Proceed to
NEXT

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

13.CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED

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

Confirm that the DTC is not output.

Powertrain > Engine > Trouble Codes: 50001 372

Result:

Proceed to
NEXT

END