Toyota Yaris: Sfi System / System Too Lean Bank 1 (P017100,P017200,P117000,P117B00)

Toyota Yaris XP210 (2020-2022) Reapir and Service Manual / Engine & Hybrid System / G16e-gts (engine Control) / Sfi System / System Too Lean Bank 1 (P017100,P017200,P117000,P117B00)

DESCRIPTION

The fuel trim is related to the feedback compensation value, not to the basic injection duration. The fuel trim consists of both the short-term and long-term fuel trims.

The short-term fuel trim is fuel compensation that is used to constantly maintain the air fuel ratio at stoichiometric levels. The signal from the air fuel ratio sensor (sensor 1) indicates whether the air fuel ratio is rich or lean compared to the stoichiometric ratio. This triggers a reduction in the fuel injection volume if the air fuel ratio is rich and an increase in the fuel injection volume if lean.

Factors such as individual engine differences, wear over time and changes in operating environment cause short-term fuel trim to vary from the central value. The long-term fuel trim, which controls overall fuel compensation, compensates for long-term deviations in the fuel trim from the central value caused by the short-term fuel trim compensation.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

MIL

Note

P017100

System Too Lean Bank 1

With a warm engine and stable air fuel ratio feedback, the fuel trim is considerably in error to the lean side (2 trip detection logic).

  • Intake system
  • Port fuel injector assembly
  • Direct fuel injector assembly
  • Mass air flow meter sub-assembly
  • Engine coolant temperature sensor
  • Fuel pressure
  • Fuel pressure sensor (for high pressure side)
  • Gas leak from exhaust system
  • Open or short in air fuel ratio sensor (sensor 1) circuit
  • Air fuel ratio sensor (sensor 1)
  • PCV valve and hose
  • PCV hose connections
  • Wire harness or connector
  • ECM

Comes on

SAE: P0171

P017200

System Too Rich Bank 1

With a warm engine and stable air fuel ratio feedback, the fuel trim is considerably in error to the rich side (2 trip detection logic).

  • Port fuel injector assembly
  • Direct fuel injector assembly
  • Mass air flow meter sub-assembly
  • Engine coolant temperature sensor
  • Ignition system
  • Fuel pressure
  • Fuel pressure sensor (for high pressure side)
  • Gas leak from exhaust system
  • Open or short in air fuel ratio sensor (sensor 1) circuit
  • Air fuel ratio sensor (sensor 1)
  • Wire harness or connector
  • ECM

Comes on

SAE: P0172

P117000

Fuel Performance/Port Injector

Although a DTC is stored for a rich or lean condition, the amount of fuel trim during direct injection is normal (1 trip detection logic)

  • Port fuel injector assembly
  • Direct fuel injector assembly
  • Fuel pressure
  • ECM

-

SAE: P1170

P117B00

Fuel Performance/Direct Injector

Although a DTC is stored for a rich or lean condition, the amount of fuel trim during port injection is normal (1 trip detection logic)

  • Port fuel injector assembly
  • Direct fuel injector assembly
  • Fuel pressure
  • ECM

-

SAE: P117B

HINT:

  • When DTC P017100 is stored, the actual air fuel ratio is on the lean side. When DTC P017200 is stored, the actual air fuel ratio is on the rich side.
  • If the vehicle runs out of fuel, the air fuel ratio is lean and DTC P017100 may be stored. The MIL is then illuminated.
  • When DTC P117000 or P117B00 is output, it may not be possible to precisely determine whether the port injection or the direct injection is malfunctioning, depending on the conditions. In this case, perform an Active Test (Control the Injection Mode) to determine which injection system is malfunctioning.

MONITOR DESCRIPTION

Under closed loop fuel control, fuel injection volumes that deviate from those estimated by the ECM cause changes in the long-term fuel trim compensation value. The long-term fuel trim is adjusted when there are persistent deviations in the short-term fuel trim values. Deviations from the fuel injection volumes estimated by the ECM also affect the average fuel trim learned value, which is a combination of the average short-term fuel trim (fuel feedback compensation value) and the average long-term fuel trim (learned value of the air fuel ratio). If the average fuel trim learned value exceeds the malfunction thresholds, the ECM interprets this as a malfunction of the fuel system and stores a DTC.

Example:

The average fuel trim learned value is +35% or higher, or -35% or less, the ECM interprets this as a fuel system malfunction.

MONITOR STRATEGY

Required Sensors/Components (Main)

Fuel system

Required Sensors/Components (Related)

Air fuel ratio sensor (sensor 1)

Mass air flow meter sub-assembly

Crankshaft position sensor

Frequency of Operation

Continuous

TYPICAL ENABLING CONDITIONS

Fuel system status

Closed loop

Auxiliary battery voltage

11 V or higher

Either of the following conditions is met

1 or 2

1. Engine speed

Less than 1100 rpm

2. Engine load

10% or higher

Catalyst monitor

Not executed

TYPICAL MALFUNCTION THRESHOLDS

P0171 and P0172: Fuel-Trim Lean/Rich

EVAP purge-cut

Executing

Either of the following conditions is met

1 or 2

1. Average between short-term fuel trim and long-term fuel trim

35% or higher (varies with engine coolant temperature)

2. Average between short-term fuel trim and long-term fuel trim

-35% or less (varies with engine coolant temperature)

P1170: Fuel Trim (Port Injection Fail)

DTCs of fuel system have already been set

-

EVAP purge-cut

Executing

Direct injection

100%

Both of the following conditions are met

1 and 2

1. Average between short-term fuel trim and long-term fuel trim

Less than 35% (varies with engine coolant temperature)

2. Average between short-term fuel trim and long-term fuel trim

Higher than -35% (varies with engine coolant temperature)

P117B: Fuel Trim (Direct Injection Fail)

DTCs of fuel system have already been set

-

EVAP purge-cut

Executing

Port injection

100%

Both of the following conditions are met

1 and 2

1. Average between short-term fuel trim and long-term fuel trim

Less than 35% (varies with engine coolant temperature)

2. Average between short-term fuel trim and long-term fuel trim

Higher than -35% (varies with engine coolant temperature)

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 [A].
  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 all the accessories switched off [B].
  9. With the engine warmed up, idle the engine for 2 minutes or more [C].
  10. Drive the vehicle at a speed between 60 and 100 km/h (37 and 62 mph) for 5 minutes or more [D].

    CAUTION:

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

  11. Enter the following menus: Powertrain / Engine / Trouble Codes [E].
  12. Read the pending DTCs.

    HINT:

    If a pending DTC is output, the system is malfunctioning.

WIRING DIAGRAM

  • Refer to DTC P010012 for the mass air flow meter sub-assembly circuit.

    Click here

  • Refer to DTC P003012 for the air fuel ratio sensor (sensor 1) circuit.

    Click here

  • Refer to DTC P044313 for purge VSV circuit.

    Click here

CAUTION / NOTICE / HINT

NOTICE:

Inspect the fuses for circuits related to this system before performing the following procedure.

HINT:

  • A low air fuel ratio sensor (sensor 1) voltage could be caused by a rich air fuel mixture. Check for conditions that would cause the engine to run rich.
  • A high air fuel ratio sensor (sensor 1) voltage could be caused by a lean air fuel mixture. Check for conditions that would cause the engine to run lean.
  • 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.
  • Sensor 1 refers to the sensor closest to the engine assembly.
  • Sensor 2 refers to the sensor farthest away from the engine assembly.

PROCEDURE

1.

CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P017100, P017200, P117000 AND/OR P117B00)

(a) Read the DTCs.

Powertrain > Engine > Trouble Codes

Result

Proceed to

P017100, P017200, P117000 and/or P117B00 is output

A

P017100, P017200, P117000 and/or P117B00 and other DTCs are output

B

HINT:

If any DTCs other than P017100, P017200, P117000 and/or P117B00 are output, troubleshoot those DTCs first.

B

GO TO DTC CHART

A

2.

PERFORM ACTIVE TEST USING GTS (CONTROL THE INJECTION MODE)

(a) Start the engine and warm it up until the engine coolant temperature is 75°C (167°F) or higher with all the accessories switched off.

(b) Enter the following menus.

Powertrain > Engine > Active Test

Active Test Display

Control the Injection Mode

Data List Display

Injection Mode

Short FT B1S1

Long FT B1S1

(c) According to the display on the GTS, read the Data List with the Active Test "Control the Injection Mode" set to Port.

OK:

GTS Display

Specified Condition

Total of Short FT B1S1 and Long FT B1S1

Between -20 and 20%

(d) According to the display on the GTS, read the Data List with the Active Test "Control the Injection Mode" set to Direct.

OK:

GTS Display

Specified Condition

Total of Short FT B1S1 and Long FT B1S1

Between -20 and 20%

Item

Proceed to

Port

Direct

OK

OK

A

OK

NG

B

NG

OK

C

NG

NG

D

B

GO TO STEP 4

C

GO TO STEP 11

D

GO TO STEP 12

A

3.

CHECK IF VEHICLE HAS RUN OUT OF FUEL IN PAST

(a) Has the vehicle run out of fuel in the past?

YES

DTC CAUSED BY RUNNING OUT OF FUEL

NO

CHECK FOR INTERMITTENT PROBLEMS

4.

READ VALUE USING GTS (FUEL PRESSURE (HIGH))

(a) Enter the following menus.

Powertrain > Engine > Data List

Tester Display

Engine Speed

Fuel Pressure (High)

Injection Mode

(b) Start the engine and warm it up until the engine coolant temperature is 75°C (167°F) or higher with all the accessories switched off.

(c) According to the display on the GTS, read the Data List.

Standard:

GTS Display

Condition

Specified Condition

Fuel Pressure (High)

  • Shift lever position: neutral
  • A/C: Off
  • Engine warmed up
  • Engine Speed: 3000 rpm
  • Injection Mode: Direct

2800 to 20000 kPag

NG

GO TO STEP 7

OK

5.

PERFORM ACTIVE TEST USING GTS (CONTROL THE INJECTION MODE (DIRECT))

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

(b) Enter the following menus.

Powertrain > Engine > Active Test

Active Test Display

Control the Injection Mode

Data List Display

High Pressure Fuel Pump Duty Ratio (D4)

Injection Mode

Short FT B1S1

Long FT B1S1

(c) According to the display on the GTS, read the Data List with the Active Test "Control the Injection Mode" set to Direct.

Item

Proceed to

Injection Mode

High Pressure Fuel Pump Duty Ratio (D4)

Total of Short FT B1S1 and Long FT B1S1

Direct

10% to 40%

-

A

40% or higher

-20% or less

B

10% or less

+20% or higher

40% or higher

+20% or higher

C

10% or less

-20% or less

D

HINT:

Perform "Inspection After Repair" after replacing the fuel pressure sensor (for high pressure side).

Click here

B

REPLACE FUEL PRESSURE SENSOR (FOR HIGH PRESSURE SIDE)

C

GO TO STEP 8

D

REPLACE ECM

A

6.

PERFORM ACTIVE TEST USING GTS (CONTROL THE INJECTION MODE (DIRECT))

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

(b) Enter the following menus.

Powertrain > Engine > Active Test

Active Test Display

Control the Injection Mode

Data List Display

High Pressure Fuel Pump Duty Ratio (D4)

Injection Mode

Short FT B1S1

Long FT B1S1

(c) According to the display on the GTS, read the Data List with the Active Test "Control the Injection Mode" set to Direct.

Item

Proceed to

Injection Mode

High Pressure Fuel Pump Duty Ratio (D4)

Total of Short FT B1S1 and Long FT B1S1

Direct

10 to 40%

-25% or less

A

10 to 40%

+30% or higher

10 to 40%

-25 to +25%

B

HINT:

Perform "Inspection After Repair" after replacing the direct fuel injector assembly.

Click here

A

REPLACE DIRECT FUEL INJECTOR ASSEMBLY (ALL CYLINDERS)

B

CHECK FOR INTERMITTENT PROBLEMS

7.

CHECK MISFIRE COUNT OF DIRECT INJECTION

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

(b) Enter the following menus.

Powertrain > Engine > Active Test

Active Test Display

Control the Injection Mode

Data List Display

Injection Mode

Misfire Count Cylinder #1

Misfire Count Cylinder #2

Misfire Count Cylinder #3

(c) According to the display on the GTS, read the Data List with the Active Test "Control the Injection Mode" set to Direct.

Injection Mode

Misfire Count

Proceed to

Direct

No misfire counts, or misfire counts occur randomly in all cylinders

A

Misfire counts occur in particular cylinder

B

HINT:

Perform "Inspection After Repair" after replacing the direct fuel injector assembly.

Click here

B

REPLACE DIRECT FUEL INJECTOR ASSEMBLY

A

8.

REPLACE FUEL PUMP ASSEMBLY (FOR HIGH PRESSURE SIDE)

Click here

HINT:

Perform "Inspection After Repair" after replacing the fuel pump assembly (for high pressure side).

Click here

NEXT

9.

CLEAR DTC

(a) Clear the DTCs.

Powertrain > Engine > Clear DTCs

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

NEXT

10.

CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED

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

(b) Read the DTCs.

Powertrain > Engine > Trouble Codes

Result

Proceed to

DTCs are not output

A

DTC P017100, P017200, P117000 and/or P117B00 is output

B

A

END

B

REPLACE ECM

11.

INSPECT PORT FUEL INJECTOR ASSEMBLY

(a) Check the injection volume (whether fuel volume is high or low, and whether injection pattern is poor).

Click here

HINT:

Perform "Inspection After Repair" after replacing the port fuel injector assembly.

Click here

OK

REPLACE ECM

NG

REPLACE PORT FUEL INJECTOR ASSEMBLY

12.

INSPECT PURGE VSV

Click here

NG

REPLACE PURGE VSV

OK

13.

CHECK HARNESS AND CONNECTOR (PURGE VSV - ECM)

(a) Disconnect the purge VSV 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

D104-45(PRG) - D96-2(EVP1)

Always

Below 1 Ω

D104-45(PRG) or D96-2(EVP1) - Body ground and other terminals

Always

10 kΩ or higher

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

14.

CHECK PCV VALVE AND HOSE CONNECTIONS

(a) Check the PCV hose connections.

(b) Check the PCV valve.

Click here

OK:

PCV hose and PCV valve are connected correctly and are not damaged.

NG

REPAIR OR REPLACE PCV VALVE OR HOSE

OK

15.

CHECK INTAKE SYSTEM

(a) Check the intake system for vacuum leaks.

Click here

OK:

No leaks in intake system.

HINT:

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

Click here

NG

REPAIR OR REPLACE INTAKE SYSTEM

OK

16.

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

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

(b) Warm up the air fuel ratio sensors at an engine speed of 2500 rpm for 90 seconds.

(c) Enter the following menus.

Powertrain > Engine > Active Test

Active Test Display

Control the Injection Volume for A/F Sensor

Data List Display

A/F (O2) Sensor Current B1S1

A/F (O2) Sensor Current B1S2

(d) Perform the Control the Injection Volume for A/F Sensor operation with the engine idling.

(e) Monitor the output values of the air fuel ratio sensor (sensor 1) and air fuel ratio sensor (sensor 2) (A/F (O2) Sensor Current B1S1 and A/F (O2) Sensor Current B1S2 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%.
  • The air fuel ratio sensor (sensor 1) has an output delay of a few seconds and the air fuel ratio sensor (sensor 2) has a maximum output delay of approximately 20 seconds.
  • If the sensor output value 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 Current B1S1

(Air fuel ratio [sensor 1])

12.5%

Rich

Below -0.075 mA

-12.5%

Lean

More than 0.037 mA

A/F (O2) Sensor Current B1S2

(Air fuel ratio [sensor 2])

12.5%

Rich

Below -0.86 mA

-12.5%

Lean

More than 0.33 mA

Status of A/F (O2) Sensor Current B1S1

Status of A/F (O2) Sensor Current B1S2

Air Fuel Ratio Condition and Air Fuel Ratio Sensor Condition

Suspected Trouble Area

Proceed to

Lean/Rich

Lean/Rich

Normal

-

A

Lean

Lean

Actual air fuel ratio lean

  • PCV valve and hose
  • PCV hose connections
  • Gas leak from exhaust system
  • Intake system
  • Fuel pressure
  • Mass air flow meter sub-assembly
  • Engine coolant temperature sensor

Rich

Rich

Actual air fuel ratio rich

  • Gas leak from exhaust system
  • Ignition system
  • Fuel pressure
  • Mass air flow meter sub-assembly
  • Engine coolant temperature sensor

Lean

Lean/Rich

Air fuel ratio sensor (sensor 1) malfunction

  • Air fuel ratio sensor (sensor 1)

B

Rich

Lean/Rich

Air fuel ratio sensor (sensor 1) malfunction

  • Air fuel ratio sensor (sensor 1)
  • Lean: During the Control the Injection Volume for A/F Sensor Active Test, the air fuel ratio sensor (sensor 1) output current (A/F (O2) Sensor Current B1S1) is consistently more than 0.037 mA, and the air fuel ratio sensor (sensor 2) output current (A/F (O2) Sensor Current B1S2) is consistently more than 0.33 mA.
  • Rich: During the Control the Injection Volume for A/F Sensor Active Test, the air fuel ratio sensor (sensor 1) output current (A/F (O2) Sensor Current B1S1) is consistently below -0.075 mA, and the air fuel ratio sensor (sensor 2) output current (A/F (O2) Sensor Current B1S2) is consistently below -0.86 mA.
  • Lean/Rich: During the Control the Injection Volume for A/F Sensor Active Test, the output current of the air fuel ratio sensor (sensor 1) or air fuel ratio sensor (sensor 2) alternate correctly.

HINT:

Refer to "Data List / Active Test" [A/F (O2) Sensor Current B1S1 and A/F (O2) Sensor Current B2S1].

Click here

B

GO TO STEP 24

A

17.

READ VALUE USING GTS (COOLANT TEMPERATURE)

(a) Enter the following menus.

Powertrain > Engine > Data List

Tester Display

Coolant Temperature

(b) Read the Data List twice, when the engine is both cold and warmed up.

Standard:

GTS Display

Condition

Specified Condition

Coolant Temperature

Cold engine

Same as ambient air temperature

After fully warming up

Between 75 and 105°C (167 and 221°F)

HINT:

  • The engine can be judged as fully warmed up after warming up the engine with the air conditioning off until the electric cooling fan starts to operate.
  • Leaving the vehicle overnight allows the engine temperature to be the same as the ambient temperature.
NG

REPLACE ENGINE COOLANT TEMPERATURE SENSOR

OK

18.

INSPECT MASS AIR FLOW METER SUB-ASSEMBLY

Click here

NG

GO TO STEP 30

OK

19.

CHECK FUEL PRESSURE (FOR LOW PRESSURE SIDE)

(a) Check the fuel pressure (for low pressure side).

Click here

NG

GO TO STEP 23

OK

20.

CHECK FOR EXHAUST GAS LEAK

(a) Check for exhaust gas leaks.

OK:

No gas leaks.

HINT:

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

Click here

NG

REPAIR OR REPLACE EXHAUST SYSTEM

OK

21.

INSPECT SPARK PLUG

Click here

HINT:

Perform "Inspection After Repair" after replacing the spark plug.

Click here

NG

REPLACE SPARK PLUG

OK

22.

CHECK FOR SPARK (SPARK TEST)

(a) Perform a spark test.

Click here

HINT:

  • If the result of the spark test is normal, proceed to the next step.
  • Perform "Inspection After Repair" after replacing the spark plug or ignition coil assembly.

    Click here

NEXT

GO TO STEP 30

23.

CHECK FUEL LINE

(a) Check the fuel lines for leaks or blockage.

OK

GO TO FUEL PUMP CONTROL CIRCUIT

NG

REPAIR OR REPLACE FUEL SYSTEM

24.

INSPECT AIR FUEL RATIO SENSOR (SENSOR 1) (HEATER RESISTANCE)

Click here

HINT:

Perform "Inspection After Repair" after replacing the air fuel ratio sensor (sensor 1).

Click here

NG

REPLACE AIR FUEL RATIO SENSOR (SENSOR 1)

OK

25.

CHECK TERMINAL VOLTAGE (POWER SOURCE OF AIR FUEL RATIO SENSOR (SENSOR 1))

(a) Disconnect the air fuel ratio sensor (sensor 1) 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

D102-2(+B) - Body ground

Ignition switch ON

11 to 14 V

*a

Front view of wire harness connector

(to Air Fuel Ratio Sensor (Sensor 1))

NG

REPAIR OR REPLACE AIR FUEL RATIO SENSOR (SENSOR 1) POWER SOURCE CIRCUIT

OK

26.

CHECK HARNESS AND CONNECTOR (AIR FUEL RATIO SENSOR (SENSOR 1) - ECM)

(a) Disconnect the air fuel ratio sensor (sensor 1) 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

D102-1(HA1A) - D104-2(HA1A)

Always

Below 1 Ω

D102-3(A1A+) - D104-95(A1A+)

Always

Below 1 Ω

D102-4(A1A-) - D102-94(A1A-)

Always

Below 1 Ω

D102-1(HA1A) or D104-2(HA1A) - Body ground and other terminals

Always

10 kΩ or higher

D102-3(A1A+) or D104-95(A1A+) - Body ground and other terminals

Always

10 kΩ or higher

D102-4(A1A-) or D102-94(A1A-) - Body ground and other terminals

Always

10 kΩ or higher

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

27.

REPLACE AIR FUEL RATIO SENSOR (SENSOR 1)

Click here

HINT:

Perform "Inspection After Repair" after replacing the air fuel ratio sensor (sensor 1).

Click here

NEXT

28.

CLEAR DTC

(a) Clear the DTCs.

Powertrain > Engine > Clear DTCs

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

NEXT

29.

CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED

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

(b) Read the DTCs.

Powertrain > Engine > Trouble Codes

Result

Proceed to

DTCs are not output

A

P017100, P017200, P117000 and/or P117B00 is output

B

A

END

B

30.

CHECK HARNESS AND CONNECTOR (MASS AIR FLOW METER SUB-ASSEMBLY CONNECTOR CONNECTION)

(a) Check the connection and terminal contact pressure of connectors and wire harnesses between the mass air flow meter sub-assembly and ECM.

Click here

HINT:

Repair any problems.

NEXT

31.

CLEAR DTC

(a) Clear the DTCs.

Powertrain > Engine > Clear DTCs

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

NEXT

32.

CHECK WHETHER DTC OUTPUT RECURS (DTC P017100, P017200, P117000 AND/OR P117B00)

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

(b) Read the DTCs.

Powertrain > Engine > Trouble Codes

Result

Proceed to

DTCs are not output

A

P017100, P017200, P117000 and/or P117B00 is output

B

A

END

B

33.

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

D23-3(VCC) - D104-84(VCVG)

Always

Below 1 Ω

D23-1(FG) - D104-107(VG)

Always

Below 1 Ω

D23-2(E2G) - D104-83(E2G)

Always

Below 1 Ω

D23-3(VCC) or D104-84(VCVG) - Body ground and other terminals

Always

10 kΩ or higher

D23-1(FG) or D104-107(VG) - Body ground and other terminals

Always

10 kΩ or higher

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

34.

REPLACE MASS AIR FLOW METER SUB-ASSEMBLY

Click here

HINT:

  • If the result of the inspection performed in steps 18 and 30 (READ VALUE USING GTS (MASS AIR FLOW SENSOR)) indicate no problem, proceed to the next step without replacing the mass air flow meter sub-assembly.
  • Perform "Inspection After Repair" after replacing the mass air flow meter sub-assembly.

    Click here

NEXT

35.

CLEAR DTC

(a) Clear the DTCs.

Powertrain > Engine > Clear DTCs

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

NEXT

36.

CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED

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

(b) Read the DTCs.

Powertrain > Engine > Trouble Codes

Result

Proceed to

DTCs are not output

A

P017100, P017200, P117000 and/or P117B00 is output

B

A

END

B

REPLACE ECM

    A/F (O2) Sensor Circuit Bank 1 Sensor 2 Circuit Current (Voltage) Below Threshold (P013616)

    DESCRIPTION Refer to DTC P003612. Click here DTC No. Detection Item DTC Detection Condition Trouble Area MIL Note P013616 A/F (O2) Sensor Circuit Bank 1 Sensor 2 Circuit Current (Voltage) Below Threshold Either of the following conditions is met (2 trip detection logic)...

    Fuel Rail Pressure Sensor "A" Circuit Short to Ground (P019011)

    DESCRIPTION The fuel pressure sensor (for high pressure side) is installed on the fuel delivery pipe (for high pressure side). The fuel pressure sensor (for high pressure side) changes the fuel pressure for high pressure side into an electrical signal and sends the signal to the ECM...

    Other information:

    Toyota Yaris XP210 (2020-2022) Reapir and Service Manual: System Description


    SYSTEM DESCRIPTION DESCRIPTION The power steering system generates torque through the operation of the motor and the reduction gear installed on the column shaft in order to assist steering effort. The power steering ECU assembly determines the direction and the amount of assist power in accordance with the vehicle speed signals and signals from the torque sensor built into the electric power steering column sub-assembly...

    Toyota Yaris XP210 (2020-2022) Reapir and Service Manual: Precaution


    PRECAUTION HINT: The following procedures are used to prevent wrinkles from forming when installing the seat cover. Make sure to follow the procedures correctly. The shape of the seat shown in the illustration may differ from the actual seat...

    Categories

    Key Suspend Function

    If a key is left in the vehicle, the functions of the key left in the vehicle are temporarily suspended to prevent theft of the vehicle.

    To restore the functions, press the unlock button on the functions-suspended key in the vehicle.

    read more

     
    Copyright © 2022 www.toyaris4.com