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

7GR-FKS ENGINE CONTROL  SFI SYSTEM  P042000  Catalyst System Efficiency Below Threshold Bank 1  P043000  Catalyst System Efficiency Below Threshold Bank 2  


MONITOR DESCRIPTION

The ECM uses sensors mounted in front of and behind the Three-Way Catalytic Converter (TWC) to monitor its efficiency.

The first sensor, the air fuel ratio sensor, sends pre-catalyst information to the ECM. The second sensor, the heated oxygen sensor, sends post-catalyst information to the ECM.

In order to detect any deterioration in the three-way catalytic converter, the ECM calculates the oxygen storage capacity of the three-way catalytic converter. This calculation is based on the voltage output of the heated oxygen sensor while performing active air fuel ratio control.

The oxygen storage capacity value is an indication of the oxygen storage capacity of the three-way catalytic converter. When the vehicle is being driven with a warm engine, active air fuel ratio control is performed for approximately 30 seconds. When it is performed, the ECM deliberately sets the air fuel ratio to lean or rich levels. If the cycle of the waveform for the heated oxygen sensor is long, the oxygen storage capacity is great. There is a direct correlation between the heated oxygen sensor and the oxygen storage capacity of the three-way catalytic converter.

The ECM uses the oxygen storage capacity value to determine the state of the three-way catalytic converter. If any deterioration has occurred, the ECM will illuminate the MIL and store a DTC.

This system determines the deterioration of the entire catalyst system (including the front and rear catalysts), by using the oxygen storage capacity value of the front catalyst, that is more sensitive than the rear catalyst, as the representative value. Therefore, be sure to replace the front and rear catalysts together when catalyst replacement is necessary.

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory Note
P042000 Catalyst System Efficiency Below Threshold Bank 1 The oxygen storage capacity value is less than the standard value under active air fuel ratio control (2 trip detection logic).
·

Gas leak from exhaust system

·

Air fuel ratio sensor (bank 1 sensor 1)

·

Heated oxygen sensor (bank 1 sensor 2)

·

Exhaust manifold assembly (TWC: Front catalyst) and front exhaust pipe assembly (TWC: Rear catalyst)


Comes on DTC stored SAE Code: P0420
P043000 Catalyst System Efficiency Below Threshold Bank 2 The oxygen storage capacity value is less than the standard value under active air fuel ratio control (2 trip detection logic).
·

Gas leak from exhaust system

·

Air fuel ratio sensor (bank 2 sensor 1)

·

Heated oxygen sensor (bank 2 sensor 2)

·

Exhaust manifold assembly LH (TWC: Front catalyst) and front exhaust pipe assembly (TWC: Rear catalyst)


Comes on DTC stored SAE Code: P0430

CATALYST LOCATION

A440157C01
0.365,1.25 0.781,0.833 false 0.667,1.771 1.083,1.354 false 1.615,1.823 2.031,1.406 false 5.604,2.74 5.219,2.344 false 6.604,1.396 6.219,1 false 3.448,3.396 3.063,3 false 2.292,3.51 2.125,3.313 false 0.792,3.354 0.99,3.167 false 1.667,2.958 1.5,2.76 false 1.042,2.729 0.875,2.531 false 4.073,1.177 3.75,0.844 false 1.677,2.333 1.51,2.135 false 0.781,0.677 1.094,0.875 0.313,0.198 10 false *1 2.042,1.26 2.354,1.458 0.313,0.198 10 false *3 0.729,2.385 1.042,2.583 0.313,0.198 10 false *2 1.365,2.635 1.677,2.833 0.313,0.198 10 false *4 1.042,1.177 1.354,1.375 0.313,0.198 10 false *5 0.656,3.344 0.969,3.542 0.313,0.198 10 false *6 1.667,2.333 1.979,2.531 0.313,0.198 10 false *7 2.271,3.521 2.583,3.719 0.313,0.198 10 false *8 3.615,0.677 4.229,0.875 0.615,0.198 10 false *9 (*A) 5.625,2.75 6.365,3.031 0.74,0.281 10 false *9 (*B) 6.552,1.417 6.865,1.615 0.313,0.198 10 false *10 3.396,3.396 3.708,3.594 0.313,0.198 10 false *11
*A for Standard Roof *B for High Roof
*1 Air Fuel Ratio Sensor (Bank 1 Sensor 1) *2 Air Fuel Ratio Sensor (Bank 2 Sensor 1)
*3 Heated Oxygen Sensor (Bank 1 Sensor 2) *4 Heated Oxygen Sensor (Bank 2 Sensor 2)
*5 Exhaust Manifold Sub-assembly RH (TWC: Front Catalyst) *6 Exhaust Manifold Sub-assembly LH (TWC: Front Catalyst)
*7 Front Exhaust Pipe Assembly (TWC: Rear Catalyst) *8 Front No. 2 Exhaust Pipe Assembly (TWC: Rear Catalyst)
*9 Center Exhaust Pipe Assembly *10 Exhaust Tailpipe Assembly
*11 Front No. 3 Exhaust Pipe Sub-assembly - -


NOTICE:
·

If DTC P042000 is output, replace the exhaust manifold sub-assembly RH (*5) and the front exhaust pipe assembly (*7) together when catalyst replacement is necessary (Excluding air fuel ratio sensor*1 and heated oxygen sensor*3).

·

If DTC P043000 is output, replace the exhaust manifold sub-assembly LH (*6) and the front No. 2 exhaust pipe assembly (*8) together when catalyst replacement is necessary (Excluding air fuel ratio sensor*2 and heated oxygen sensor*4).



MONITOR STRATEGY

Required Sensors/Components (Main) Air fuel ratio sensor
Heated oxygen sensor
Required Sensors/Components (Related) Intake air temperature sensor (mass air flow meter sub-assembly)
Mass air flow meter sub-assembly
Crankshaft position sensor
Engine coolant temperature sensor
Frequency of Operation Once per driving cycle

TYPICAL ENABLING CONDITIONS

Battery voltage 11 V or higher
Intake air temperature -10°C (14°F) or higher
Engine coolant temperature 75°C (167°F) or higher
Atmospheric pressure 76 kPa(abs) [11.02 psi(abs)] or higher
Idling Off
Engine speed Less than 3500 rpm
Air fuel ratio sensor status Activated
Fuel system status Closed loop
Engine load 10% or higher, and less than 100%
Shift position 3rd or higher
All of the following conditions are met 1, 2 and 3
1. Mass air flow rate 5 gm/sec. or higher, and less than 95 gm/sec.
2. Front catalyst temperature (estimated) 640°C (1184°F) or higher, and less than 820°C (1508°F)
3. Rear catalyst temperature (estimated) 400°C (752°F) or higher, and less than 820°C (1508°F)

CONFIRMATION DRIVING PATTERN

HINT:

Performing this confirmation driving pattern will activate the catalyst efficiency monitor. This is very useful for verifying the completion of a repair.


A413230E03
1.333,0.844 1.906,0.365 1.906,0.365 2.073,0.354 false 0.146,2.438 2.896,2.635 2.75,0.198 10 false Ignition Switch off 0.906,2.177 1.823,2.375 0.917,0.198 10 false Idling 0.75,1.115 1.823,1.313 1.073,0.198 10 false 60 km/h 2.115,0.281 4.083,0.573 1.969,0.292 10 false Between 75 to 100 km/h 1.667,2.115 2.042,2.365 0.375,0.25 10 false [A] 1.458,2.698 2.031,3.115 0.573,0.417 10 false Warming up 2.604,1.01 2.896,1.344 0.292,0.333 10 false [B]* 2.365,2.75 3.052,3.167 0.688,0.417 10 false 10 minutes or more 3.156,3.146 3.542,3.469 0.385,0.323 10 false [C] 3.365,2.729 3.917,3.385 0.552,0.656 10 false Warming up 3.479,2.104 3.792,2.406 0.313,0.302 10 false [D] 4.146,2.76 4.823,3.219 0.677,0.458 10 false 10 minutes or more 4.385,1 4.781,1.271 0.396,0.271 10 false [E]* 5.01,3.146 5.365,3.396 0.354,0.25 10 false [F] 6.146,0.625 6.5,0.906 0.354,0.281 10 false [G]* 5.927,2.74 6.615,3.146 0.688,0.406 10 false 10 minutes or more 6.771,3.146 7.094,3.438 0.323,0.292 10 false [H] 0.125,3.344 4.708,3.75 4.583,0.406 10 false *: Drive the vehicle while keeping the engine load as constant as possible

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 warm it up until the engine coolant temperature is 75°C (167°F) or higher with the shift lever in P [A].

HINT:

In order to keep the idle stable, turn the A/C and all other electric loads off and do not perform any shift operations.


9.

Drive the vehicle at approximately 60 km/h (37 mph) for 10 minutes or more [B].

CAUTION:

When performing the confirmation driving pattern, obey all speed limits and traffic laws.


HINT:

Drive the vehicle while keeping the engine load as constant as possible.


10.

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

11.

Turn the ignition switch to ON.

12.

Turn the GTS on.

13.

Start the engine and warm it up until the engine coolant temperature is 75°C (167°F) or higher [D].

14.

Drive the vehicle at approximately 60 km/h (37 mph) for 10 minutes or more [E].

CAUTION:

When performing the confirmation driving pattern, obey all speed limits and traffic laws.


HINT:

Drive the vehicle while keeping the engine load as constant as possible.


15.

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

16.

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.



17.

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

18.

Input the DTC: P042000 or P043000.

19.

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 and no pending DTC is output, perform the following procedure.



20.

Drive the vehicle at a speed between 75 and 100 km/h (47 and 62 mph) for 10 minutes or more [G].

CAUTION:

When performing the confirmation driving pattern, obey all speed limits and traffic laws.


HINT:

Drive the vehicle while keeping the engine load as constant as possible.


21.

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

22.

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.



23.

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

24.

Input the DTC: P042000 or P043000.

25.

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.




CONDITIONING FOR SENSOR TESTING

HINT:

Perform the operation with the engine speeds and time durations described below prior to checking the waveforms of the air fuel ratio and heated oxygen sensors. This is to activate the sensors sufficiently to obtain appropriate inspection results.


A292989E24
4.875,3.094 4.875,3.344 false 5.177,3.094 5.177,3.344 false 4.875,3.344 5.458,3.344 false 0.583,0.688 1.51,0.927 0.927,0.24 10 false Engine Speed 0.865,1.031 1.479,1.26 0.615,0.229 10 false 3000 rpm 0.865,1.573 1.542,1.771 0.677,0.198 10 false 2000 rpm 1.104,2.542 1.594,2.802 0.49,0.26 10 false Idling 0.365,2.771 1.521,2.969 1.156,0.198 10 false Ignition Switch off 2.104,3.167 2.958,3.396 0.854,0.229 10 false Warming up 3.333,3.167 4.531,3.385 1.198,0.219 10 false At least 3 minutes 5.5,3.26 6.198,3.51 0.698,0.25 10 false 2 seconds 6.615,2.76 6.958,3 0.344,0.24 10 false Time 1.646,2.656 1.938,2.896 0.292,0.24 10 false [A] 2.094,2.417 2.396,2.677 0.302,0.26 10 false [B] 3.625,0.865 3.896,1.094 0.271,0.229 10 false [C] 4.802,0.875 5.104,1.146 0.302,0.271 10 false [D] 5.104,1.458 5.365,1.729 0.26,0.271 10 false [D]

1.

Connect the GTS to the DLC3.

2.

Turn the ignition switch to ON and turn the GTS on [A].

3.

Start the engine and warm it up with all the accessories switched off until the engine coolant temperature stabilizes [B].

4.

Enter the following menus: Powertrain / Engine / Data List / A/F (O2) Sensor Voltage B1S1 and O2 Sensor Voltage B1S2 or A/F (O2) Sensor Voltage B2S1 and O2 Sensor Voltage B2S2.

5.

Run the engine at an engine speed of between 2500 rpm and 3000 rpm for at least 3 minutes [C].

6.

While running the engine at 3000 rpm for 2 seconds, and then 2000 rpm for 2 seconds, check the waveforms of the air fuel ratio and heated oxygen sensors using the GTS [D].


HINT:
·

If the voltage output of either the air fuel ratio or heated oxygen sensor does not fluctuate, or there is a noise in the waveform of either sensor, the sensor may be malfunctioning.

·

If the voltage outputs of both the sensors remain lean or rich, the air fuel ratio may be extremely lean or rich. In such cases, perform the Control the Injection Volume for A/F Sensor Active Test using the GTS.

·

If the Three-way Catalytic Converter (TWC) has deteriorated, the heated oxygen sensor (located behind the Three-way Catalytic Converter [TWC]) voltage output fluctuates up and down frequently, even under normal driving conditions (active air fuel ratio control is not performed).


A199479E21
0.25,0.104 4.594,0.271 4.344,0.167 10 Voltage Output When Active Air Fuel Ratio Control Not Performed: 2.438,0.531 3.573,0.698 1.135,0.167 10 Normal Catalyst 4.76,0.542 6.135,0.729 1.375,0.188 10 Deteriorated Catalyst 2.406,2.99 3.281,3.188 0.875,0.198 10 10 seconds 4.958,3 5.792,3.167 0.833,0.167 10 10 seconds 1.49,0.781 1.875,0.927 0.385,0.146 10 3.4 V 1.479,1.208 1.865,1.354 0.385,0.146 10 3.1 V 1.49,2.052 1.885,2.26 0.396,0.208 10 1.0 V 1.604,2.729 1.917,2.958 0.313,0.229 10 0 V 0.052,2.198 1.323,2.896 1.271,0.698 10 Waveform of Heated Oxygen Sensor Behind Three-Way Catalytic Converter 0.063,0.76 1.396,1.417 1.333,0.656 10 Waveform of Air Fuel Ratio Sensor in Front of Three-Way Catalytic Converter


CAUTION / NOTICE / HINT

HINT:
·

If a malfunction cannot be found when troubleshooting DTC P042000 or P043000, a lean or rich abnormality may be the cause. Perform troubleshooting by following the inspection procedure for P017100 or P017400 (System Too Lean), and P017200 or P017500 (System Too Rich).

·

Bank 1 refers to the bank that includes the No. 1 cylinder*.

*: The No. 1 cylinder is the cylinder which is farthest from the transmission.

·

Bank 2 refers to the bank that does not include the No. 1 cylinder.

·

Sensor 1 refers to the sensor closest to the engine assembly.

·

Sensor 2 refers to the sensor farthest away from the engine assembly.

·

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 ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P042000 AND/OR P043000)
a.

Connect the GTS to the DLC3.


b.

Turn the ignition switch to ON.


c.

Turn the GTS on.


d.

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


e.

Read the DTCs.

Powertrain > Engine > Trouble Codes
50001 372
Result:
Result Proceed to
DTC P042000 and/or P043000 are output A
DTC P042000 and/or P043000 and other DTCs are output B


HINT:

If any DTCs other than P042000 and/or P043000 are output, troubleshoot those DTCs first.




A

2.PERFORM ACTIVE TEST USING GTS (CONTROL THE INJECTION VOLUME FOR A/F SENSOR)

B

GO TO DTC CHART

Click hereEngine / Hybrid System>7GR-FKS (ENGINE CONTROL)>SFI SYSTEM>DIAGNOSTIC TROUBLE CODE CHART


2.PERFORM ACTIVE TEST USING GTS (CONTROL THE INJECTION VOLUME FOR A/F SENSOR)
a.

Connect the GTS to the DLC3.


b.

Start the engine and warm it up until the engine coolant temperature is 75°C (167°F) or higher.


c.

Turn the GTS on.


d.

Warm up the air fuel ratio sensor at an engine speed of 2500 rpm for approximately 90 seconds.


e.

Enter the following menus: Powertrain / Engine / Active Test / Control the Injection Volume for A/F Sensor / Data List / Coolant Temperature, A/F (O2) Sensor Voltage B1S1 and O2 Sensor Voltage B1S2 or A/F (O2) Sensor Voltage B2S1 and O2 Sensor Voltage B2S2.

Powertrain > Engine > Active Test
Active Test Display
Control the Injection Volume for A/F Sensor
Data List Display
Coolant Temperature
A/F (O2) Sensor Voltage B1S1
A/F (O2) Sensor Voltage B2S1
O2 Sensor Voltage B1S2
O2 Sensor Voltage B2S2
50004 372 8 205,225,512,218,510

f.

Perform the Active Test operation with the engine idling (change the fuel injection volume).


g.

Monitor the voltage outputs of the air fuel ratio sensor and heated oxygen sensor (A/F (O2) Sensor Voltage B1S1 and O2 Sensor Voltage B1S2 or A/F (O2) Sensor Voltage B2S1 and O2 Sensor Voltage B2S2) displayed on the GTS.

HINT:
·

The Control the Injection Volume for A/F Sensor operation lowers the fuel injection volume by 12.5% or increases the injection volume by 12.5%.

·

Each sensor reacts in accordance with increases and decreases in the fuel injection volume.

·

The air fuel ratio sensor has an output delay of a few seconds and the heated oxygen sensor has a maximum output delay of approximately 20 seconds.

·

If the sensor output voltage does not change (almost no reaction) while performing the Active Test, the sensor may be malfunctioning.



Standard:
GTS Display
(Sensor) 		Injection Volume Status Voltage
A/F (O2) Sensor Voltage B1S1
A/F (O2) Sensor Voltage B2S1
(Air fuel ratio) 		12.5% Rich Below 3.1 V
-12.5% Lean Higher than 3.4 V
O2 Sensor Voltage B1S2
O2 Sensor Voltage B2S2
(Heated oxygen) 		12.5% Rich Higher than 0.55 V
-12.5% Lean Below 0.4 V


Result:
Status of A/F (O2) Sensor Voltage B1S1 or A/F (O2) Sensor Voltage B2S1 Status of O2 Sensor Voltage B1S2 or O2 Sensor Voltage B2S2 Actual air fuel ratio, air fuel ratio sensor and heated oxygen sensor condition Misfire Main Suspected Trouble Area Proceed to
Lean/Rich Lean/Rich Normal -
·

Three-way catalytic converter

·

Gas leak from exhaust system


A
Lean Lean/Rich Air fuel ratio sensor malfunction -
·

Air fuel ratio sensor


B
Rich Lean/Rich Air fuel ratio sensor malfunction -
·

Air fuel ratio sensor


Lean/Rich Lean Heated oxygen sensor malfunction -
·

Heated oxygen sensor

·

Gas leak from exhaust system


C
Lean/Rich Rich Heated oxygen sensor malfunction -
·

Heated oxygen sensor

·

Gas leak from exhaust system


Lean Lean Actual air fuel ratio lean May occur
·

Extremely lean actual air fuel ratio

·

Gas leak from exhaust system


D
Rich Rich Actual air fuel ratio rich -
·

Extremely rich actual air fuel ratio

·

Gas leak from exhaust system




Lean: During Control the Injection Volume for A/F Sensor, the air fuel ratio sensor output voltage (A/F (O2) Sensor Voltage B1S1 or A/F (O2) Sensor Voltage B2S1) is consistently higher than 3.4 V, and the heated oxygen sensor output voltage (O2 Sensor Voltage B1S2 or O2 Sensor Voltage B2S2) is consistently less than 0.4 V.

Rich: During Control the Injection Volume for A/F Sensor, the A/F (O2) Sensor Voltage B1S1 or A/F (O2) Sensor Voltage B2S1 is consistently less than 3.1 V, and the O2 Sensor Voltage B1S2 or O2 Sensor Voltage B2S2 is consistently higher than 0.55 V.

Lean/Rich: During Control the Injection Volume for A/F Sensor of the Active Test, the output voltage of the air fuel ratio sensor or heated oxygen sensor alternates correctly.




A

3.CHECK FOR EXHAUST GAS LEAK

B

4.REPLACE AIR FUEL RATIO SENSOR

C

5.CHECK FOR EXHAUST GAS LEAK

D

7.CHECK FOR EXHAUST GAS LEAK
3.CHECK FOR EXHAUST GAS LEAK
a.

Check for exhaust gas leaks.

OK:

No gas leaks in exhaust system.



Result:
Proceed to
OK
NG



OK

10.CLEAR DTC

NG

9.REPAIR OR REPLACE EXHAUST SYSTEM
4.REPLACE AIR FUEL RATIO SENSOR
a.

Replace the air fuel ratio sensor.

Click hereEngine / Hybrid System>7GR-FKS (ENGINE CONTROL)>AIR FUEL RATIO SENSOR>REMOVAL

HINT:

Perform "Inspection After Repair" after replacing the air fuel ratio sensor.

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



Result:
Proceed to
NEXT



NEXT

10.CLEAR DTC
5.CHECK FOR EXHAUST GAS LEAK
a.

Check for exhaust gas leaks.

OK:

No gas leaks in exhaust system.



Result:
Proceed to
OK
NG



OK

6.REPLACE HEATED OXYGEN SENSOR

NG

9.REPAIR OR REPLACE EXHAUST SYSTEM
6.REPLACE HEATED OXYGEN SENSOR
a.

Replace the heated oxygen sensor.

Click hereEngine / Hybrid System>7GR-FKS (ENGINE CONTROL)>HEATED OXYGEN SENSOR>REMOVAL


Result:
Proceed to
NEXT



NEXT

10.CLEAR DTC
7.CHECK FOR EXHAUST GAS LEAK
a.

Check the exhaust gas leaks.

OK:

No gas leaks in exhaust system.



Result:
Proceed to
OK
NG



OK

8.CHECK CAUSE OF EXTREMELY RICH OR LEAN ACTUAL AIR FUEL RATIO

NG

9.REPAIR OR REPLACE EXHAUST SYSTEM
8.CHECK CAUSE OF EXTREMELY RICH OR LEAN ACTUAL AIR FUEL RATIO
a.

Check the cause of extremely rich or lean actual air fuel ratio, referring to the DTC P017100 Inspection Procedure.

Click hereEngine / Hybrid System>7GR-FKS (ENGINE CONTROL)>SFI SYSTEM>P017100


Result:
Proceed to
NEXT



NEXT

10.CLEAR DTC
9.REPAIR OR REPLACE EXHAUST SYSTEM
a.

Repair or replace exhaust system.

HINT:

Perform "Inspection After Repair" after repairing or replacing the exhaust system.

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



Result:
Proceed to
NEXT



NEXT

10.CLEAR DTC
10.CLEAR DTC
a.

Connect the GTS to the DLC3.


b.

Turn the ignition switch to ON.


c.

Turn the GTS on.


d.

Clear the DTC.

Powertrain > Engine > Clear DTCs
50002 372

e.

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


Result:
Proceed to
NEXT



NEXT

11.CHECK WHETHER DTC OUTPUT RECURS (DTC P042000 AND/OR P043000)
11.CHECK WHETHER DTC OUTPUT RECURS (DTC P042000 AND/OR P043000)
a.

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


b.

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


c.

Read the DTCs.

Powertrain > Engine > Trouble Codes
50001 372
Result:
Result Proceed to
DTCs are not output
(No pending DTCs output) 		A
DTC P042000 and/or P043000 is output B




A

END

B

12.CHECK DTC OUTPUT (DTC P042000 AND/OR P043000)
12.CHECK DTC OUTPUT (DTC P042000 AND/OR P043000)
NOTICE:
·

If DTC P042000 is output, replace the exhaust manifold assembly RH (TWC: Front catalyst) and the front exhaust pipe assembly (TWC: Rear catalyst) together when catalyst replacement is necessary.

·

If DTC P043000 is output, replace the exhaust manifold assembly LH (TWC: Front catalyst) and the front No. 2 exhaust pipe assembly (TWC: Rear catalyst) together when catalyst replacement is necessary.



HINT:

Confirm the replacement parts, referring to the illustration in Catalyst Location.


a.

Connect the GTS to the DLC3.


b.

Turn the ignition switch to ON.


c.

Turn the GTS on.


d.

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


e.

Read the DTCs.

Powertrain > Engine > Trouble Codes
50001 372
Result:
Result Proceed to
DTC P042000 is output A
DTC P043000 is output B
DTC P042000 and P043000 are output C




A

REPLACE EXHAUST MANIFOLD ASSEMBLY RH (TWC: FRONT CATALYST) AND FRONT EXHAUST PIPE ASSEMBLY (TWC: REAR CATALYST)
·

for Front Catalyst: Click hereEngine / Hybrid System>7GR-FKS (INTAKE / EXHAUST)>EXHAUST MANIFOLD>REMOVAL

·

for Rear Catalyst: Click hereEngine / Hybrid System>7GR-FKS (INTAKE / EXHAUST)>EXHAUST PIPE>REMOVAL



B

REPLACE EXHAUST MANIFOLD ASSEMBLY LH (TWC: FRONT CATALYST) AND FRONT NO. 2 EXHAUST PIPE ASSEMBLY (TWC: REAR CATALYST)
·

for Front Catalyst: Click hereEngine / Hybrid System>7GR-FKS (INTAKE / EXHAUST)>EXHAUST MANIFOLD>REMOVAL

·

for Rear Catalyst: Click hereEngine / Hybrid System>7GR-FKS (INTAKE / EXHAUST)>EXHAUST PIPE>REMOVAL



C

REPLACE EXHAUST MANIFOLD ASSEMBLY RH (TWC: FRONT CATALYST), EXHAUST MANIFOLD ASSEMBLY LH (TWC: FRONT CATALYST), FRONT EXHAUST PIPE ASSEMBLY (TWC: REAR CATALYST) AND FRONT NO. 2 EXHAUST PIPE ASSEMBLY (TWC: REAR CATALYST)
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for Front Catalyst: Click hereEngine / Hybrid System>7GR-FKS (INTAKE / EXHAUST)>EXHAUST MANIFOLD>REMOVAL

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for Rear Catalyst: Click hereEngine / Hybrid System>7GR-FKS (INTAKE / EXHAUST)>EXHAUST PIPE>REMOVAL