Toyota Yaris: Sfi System / A/F (O2) Sensor Circuit Bank 1 Sensor 2 Circuit Current (Voltage) Below Threshold (P013616)

Toyota Yaris XP210 (2020-2022) Reapir and Service Manual / Engine & Hybrid System / G16e-gts (engine Control) / Sfi System / 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).

  • During active rich air-fuel ratio control, the air fuel ratio sensor (sensor 2) current is 6 mA or more
  • During active rich air-fuel ratio control, the oxygen storage capacity of the catalyst is more than 1.35 g when the air fuel ratio sensor (sensor 2) current is -0.25757 mA or higher
  • Air fuel ratio sensor (sensor 2)
  • Air fuel ratio sensor (sensor 1)
  • Gas leak from exhaust system
  • Fuel system
  • Intake system

Comes on

SAE: P0136

MONITOR DESCRIPTION

Active Air fuel Ratio Control

The ECM usually performs air fuel ratio feedback control so that the air fuel ratio sensors output indicates a near stoichiometric air fuel ratio. This vehicle includes active air fuel ratio control in addition to regular air fuel ratio control. The ECM performs active air fuel ratio control to detect any deterioration in the Three-Way Catalytic Converter (TWC) and any malfunctions of the air fuel ratio sensor (sensor 2) (refer to the diagram below).

Active air fuel ratio control is performed for approximately 30 seconds while driving with a warm engine. During active air fuel ratio control, the air fuel ratio is forcibly regulated to become lean or rich by the ECM. If the ECM detects a malfunction, a DTC is stored.

Abnormal Air Fuel Ratio Sensor (Sensor 2) Output Current (DTC P013616)

Case 1: The ECM illuminates the MIL and stores a DTC when active rich air-fuel ratio control is being performed and the air fuel ratio sensor (sensor 2) current is 6 mA or more.

Case 2: The ECM illuminates the MIL and stores a DTC when active rich air-fuel ratio control is being performed, the oxygen storage capacity of the catalyst is more than Threshold and the air fuel ratio sensor (sensor 2) current is -0.25757 mA or more.

MONITOR STRATEGY

Required Sensors/Components (Main)

Air fuel ratio sensor (sensor 2)

Required Sensors/Components (Related)

Crankshaft position sensor

Engine coolant temperature sensor

Mass air flow meter sub-assembly

Throttle position sensor

Air fuel ratio sensor (sensor 1)

Frequency of Operation

Once per driving cycle

TYPICAL ENABLING CONDITIONS

Auxiliary battery voltage

11 V or higher

Intake air temperature (mass air flow meter sub-assembly)

-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 3200 rpm

Air fuel ratio sensor (sensor 1) status

Activated

Fuel system status

Closed loop

Engine load

10% or higher, and less than 140%

TYPICAL MALFUNCTION THRESHOLDS

Both of the following conditions are met

A and B

A. Continuous time of active rich air fuel ratio control*1

0.5 seconds or more

*1: Target air fuel ratio

14.3 or less

B. Either of the following conditions is met

(a) or (b)

(a) Air fuel ratio sensor (sensor 2) current

6 mA or more

(b) OSC (Oxygen Storage Capacity) of catalyst

More than 1.35 g

CONFIRMATION DRIVING PATTERN

HINT:

  • This confirmation driving pattern is used for the "Perform Confirmation Driving Pattern" procedure of the following diagnostic troubleshooting procedure.
  • Performing this confirmation driving pattern will activate the air fuel ratio sensor (sensor 2) monitor (the catalyst monitor is performed simultaneously). This is very useful for verifying the completion of a repair.
  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 [B].
  9. Drive the vehicle at 75 to 120 km/h (46 to 75 mph) for 10 minutes or more [C].

    CAUTION:

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

  10. Enter the following menus: Powertrain / Engine / Trouble Codes [D].
  11. 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.
  12. Enter the following menus: Powertrain / Engine / Utility / All Readiness.
  13. Input the DTC: P013616.
  14. 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.
    • If the judgment result is INCOMPLETE, perform steps [C] through [D] again.

WIRING DIAGRAM

Refer to DTC P003612.

Click here

CAUTION / NOTICE / HINT

HINT:

Malfunctioning areas can be identified by performing the Active Test "Control the Injection Volume for A/F Sensor". This Active Test can help to determine whether the air fuel ratio sensors (sensor 1 and sensor 2) and other potential trouble areas are malfunctioning.

The following procedure describes how to perform the Active Test "Control the Injection Volume for A/F Sensor" using the GTS.

  1. Connect the GTS to the DLC3.
  2. Turn the ignition switch to ON.
  3. Turn the GTS on.
  4. Start the engine and warm it up until the engine coolant temperature is 75°C (167°F) or higher.
  5. Warm up the air fuel ratio sensors at an engine speed of 2500 rpm for 90 seconds.
  6. Enter the following menus: Powertrain / Engine / Active Test / Control the Injection Volume for A/F Sensor / Data List / A/F (O2) Sensor Current B1S1 and A/F (O2) Sensor Current B1S2.
  7. Perform the Active Test with the engine idling (change the fuel injection volume).
  8. Monitor the output current of the air fuel ratio sensor (sensor 1) (A/F (O2) Sensor Current B1S1) and air fuel ratio sensor (sensor 2) (A/F (O2) Sensor Current B1S2) displayed on the GTS.

HINT:

  • The Active Test "Control the Injection Volume for A/F Sensor" can be used to lower the fuel injection volume by 12.5% or increase the injection volume by 12.5%.
  • Each sensor reacts in accordance with the increase and decrease in the fuel injection volume.
Standard

GTS Display (Sensor)

Injection Volume

Status

Current

A/F (O2) Sensor Current B1S1

(Air fuel ratio sensor (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 (sensor 2))

12.5%

Rich

Below -0.86 mA

-12.5%

Lean

More than 0.33 mA

NOTICE:

The air fuel ratio sensor (sensor 1) has an output delay for a few seconds and the air fuel ratio sensor (sensor 2) has a maximum output delay of approximately 20 seconds.

Performing the Active Test "Control the Injection Volume for A/F Sensor" allows the output value of the air fuel ratio sensors (sensor 1 and sensor 2) to be checked and graphed.

NOTICE:

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

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.
  • 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.

READ OUTPUT DTC (DTC P013616)

(a) Read the DTCs.

Powertrain > Engine > Trouble Codes

Result

Proceed to

P013616 is output

A

P013616 and other DTCs are output

B

HINT:

If any DTCs other than P013616 are output, troubleshoot those DTCs first.

B

GO TO DTC CHART

A

2.

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.
  • With V type engines, when the sensor output values for both banks stay as either lean or rich, parts other than the sensor may be malfunctioning. Comparing the sensor output for both banks can be useful when troubleshooting.
Standard

GTS Display (Sensor)

Injection Volume

Status

Current

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

Suspected Trouble Area

Proceed to

Lean/Rich

Lean/Rich

  • Air fuel ratio sensor (sensor 2)

A

Lean

Lean

  • Gas leak from exhaust system
  • Extremely lean actual air fuel ratio
  • Air fuel ratio sensor (sensor 2)

B

Rich

Rich

  • Gas leak from exhaust system
  • Extremely rich actual air fuel ratio
  • Air fuel ratio sensor (sensor 2)

Lean/Rich

Lean

  • Air fuel ratio sensor (sensor 2)
  • Gas leak from exhaust system

C

Lean/Rich

Rich

  • Air fuel ratio sensor (sensor 2)
  • Gas leak from exhaust system

Lean

Lean/Rich

  • Air fuel ratio sensor (sensor 1)
  • Air fuel ratio sensor (sensor 2)

D

Rich

Lean/Rich

  • Air fuel ratio sensor (sensor 1)
  • Air fuel ratio sensor (sensor 2)
  • 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 B1S2].

Click here

B

GO TO STEP 6

C

GO TO STEP 8

D

GO TO STEP 9

A

3.

REPLACE AIR FUEL RATIO SENSOR (SENSOR 2)

Click here

HINT:

Perform "Inspection After Repair" after replacing the air fuel ratio sensor (sensor 2).

Click here

NEXT

4.

CLEAR DTC

(a) Clear the DTCs.

Powertrain > Engine > Clear DTCs

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

NEXT

5.

CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED

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

(b) Enter the following menus.

Powertrain > Engine > Utility

Tester Display

All Readiness

(c) Input the DTC: P013616.

(d) Check the DTC judgment result.

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
NEXT

END

6.

CHECK FOR EXHAUST GAS LEAK

(a) Check for exhaust gas leaks.

OK:

No gas leaks in exhaust system.

HINT:

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

Click here

NG

REPAIR OR REPLACE EXHAUST SYSTEM

OK

7.

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 and P017200 Inspection Procedure.

Click here

NEXT

GO TO STEP 10

8.

CHECK FOR EXHAUST GAS LEAK

(a) Check for exhaust gas leaks.

OK:

No gas leaks in exhaust system.

HINT:

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

    Click here

  • Perform "Inspection After Repair" after replacing the air fuel ratio sensor (sensor 2).

    Click here

OK

REPLACE AIR FUEL RATIO SENSOR (SENSOR 2)

NG

REPAIR OR REPLACE EXHAUST SYSTEM

9.

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

10.

CLEAR DTC

(a) Clear the DTCs.

Powertrain > Engine > Clear DTCs

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

NEXT

11.

CHECK WHETHER DTC OUTPUT RECURS (DTC P013616)

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

(b) Enter the following menus.

Powertrain > Engine > Utility

Tester Display

All Readiness

(c) Input the DTC: P013616.

(d) Check that the DTC judgment result is NORMAL. If the DTC judgment result is INCOMPLETE, perform the confirmation drive pattern again but increase the vehicle speed.

Result

Proceed to

NORMAL

(DTCs are not output)

A

ABNORMAL

(P013616 is output)

B

HINT:

Perform "Inspection After Repair" after replacing the air fuel ratio sensor (sensor 2).

Click here

A

END

B

REPLACE AIR FUEL RATIO SENSOR (SENSOR 2)

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