SFI SYSTEM, Diagnostic DTC:P2444, P2445

DTC Code DTC Name
P2444 Secondary Air Injection System Pump Stuck On Bank1
P2445 Secondary Air Injection System Pump Stuck Off Bank1

DESCRIPTION

Refer to P2431 Click here.

DTC No. DTC Detection Condition Trouble Area
P2444 Secondary air pressure more than 4.12 kPa (30.902 mmHg) despite ECM commanding air pump to turn off (2 trip detection logic)

  • Short in air pump circuit

  • Open or short in air pressure sensor circuit

  • Air pressure sensor

  • Air injection control driver

  • ECM
P2445 Secondary air pressure less than 1.5 kPa (11.251 mmHg) despite ECM commanding air pump to turn on (2 trip detection logic)

  • Air pump

  • Open in air pump circuit

  • Secondary air injection system piping

  • Vacuum hose (air pressure sensor - air switching valve)

  • Air pressure sensor

  • Open or short in air pressure sensor circuit

  • Air injection control driver

  • ECM

MONITOR DESCRIPTION

The ECM monitors the pressure in the secondary air passage using the air pressure sensor located on the air switching valve of the secondary air injection system. The sensor measures the pressure in the secondary air passage and transmits a signal to the ECM.

If either of the following conditions occurs, the ECM interprets it as a malfunction of the secondary air injection system, and illuminates the MIL and stores a DTC:


MONITOR STRATEGY

Required Sensors/Components Air pressure sensor
Frequency of Operation Once per drive cycle

TYPICAL MALFUNCTION THRESHOLDS

Secondary Air Injection ON (Condition 1):
Following conditions are met during AIR ON -
Cumulative pressure pulsation 12.5 kPa (93.755 mmHg) or higher
AIR pressure 1.5 kPa (11.251 mmHg) or higher
Secondary Air Injection ON (Condition 2):
Following conditions are met during AIR ON -
Cumulative pressure pulsation 12.5 kPa (93.755 mmHg) or higher
AIR pressure Below 1.5 kPa (11.251 mmHg)
Secondary Air Injection ON (Condition 3):
Following conditions are met during AIR ON -
Cumulative pressure pulsation Below 12.5 kPa (93.755 mmHg)
AIR pressure 1.5 kPa (11.251 mmHg) or higher
Secondary Air Injection ON (Condition 4):
Following conditions are met during AIR ON -
Cumulative pressure pulsation Below 12.5 kPa (93.755 mmHg)
AIR pressure Below 1.5 kPa (11.251 mmHg)
Secondary Air Injection OFF (Condition 1):
Following conditions are met during AIR OFF -
Cumulative pressure pulsation 50 kPa (375.02 mmHg) or higher
AIR pressure 4.12 kPa (30.902 mmHg) or higher
Secondary Air Injection OFF (Condition 2):
Following conditions are met during AIR OFF -
Cumulative pressure pulsation 60 kPa (450.02 mmHg) or higher
AIR pressure Below 4.12 kPa (30.902 mmHg)
Secondary Air Injection OFF (Condition 3):
Following conditions are met during AIR OFF -
Cumulative pressure pulsation Below 60 kPa (450.02 mmHg)
AIR pressure 4.12 kPa (30.902 mmHg) or higher
Secondary Air Injection OFF (Condition 4):
Secondary Air Injection OFF (Condition 4): -
Cumulative pressure pulsation Below 60 kPa (450.02 mmHg)
AIR pressure Below 4.12 kPa (30.902 mmHg)
P2444 Air Pump is Stuck ON
One of the following conditions is met (a) or (b)
(a) Condition 1 (AIR OFF) -
(b) Condition 3 (AIR OFF) -
P2445 Air Pump is Stuck OFF
One of the following conditions is met (a) or (b)
(a) Condition 2 (AIR ON) -
(b) Condition 4 (AIR ON) -

CONFIRMATION DRIVING PATTERN

Note


  • Secondary Air Injection Check only allows technicians to operate the secondary air injection system for a maximum of 5 seconds.

    Furthermore, the check can only be performed up to 4 times per trip. If the test is repeated, intervals of at least 30 seconds are required between checks.

    While secondary air injection system operation using the GTS is prohibited, the GTS display indicates the prohibition (WAIT or ERROR).

    If ERROR is displayed on the GTS during the test, stop the engine for 10 minutes, and then try again.

  • Performing the Secondary Air Injection Check repeatedly may cause damage to the secondary air injection system. If necessary, leave an interval of several minutes between System Check operations to prevent the system from overheating.

  • When performing the Secondary Air Injection Check operation after the battery cable has been reconnected, wait for 7 minutes with the ignition switch ON or the engine running.

  • Turn the ignition switch off when the Secondary Air Injection Check operation finishes.


  1. Start the engine and warm it up.

  2. Turn the ignition switch off.

  3. Connect the GTS to the DLC3.

  4. Turn the ignition switch to ON.

  5. Turn the GTS on.

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

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

  8. Turn the ignition switch to ON and turn the GTS on.

  9. Enter the following menus: Powertrain / Engine and ECT / Utility / Secondary Air Injection Check / Automatic Mode.

  10. Start the engine after the GTS initialization is finished.

  11. Perform the System Check operation by pressing Next.

  12. Perform the following to confirm the secondary air injection system pending DTCs: Press the Exit.

  13. Check for pending DTCs.

    Tech Tips


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

    • If a pending DTC is not output, perform the following procedure.

  14. After the "Secondary Air injection check" is completed, check for All Readiness by entering the following menus: Powertrain / Engine and ECT / Utility / All Readiness.

  15. Input the DTC: P2444 or P2445.

  16. 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
    N/A

    • Unable to perform DTC judgment

    • Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit

    Tech Tips


    • If the judgment result shows NORMAL, the system is normal.

    • If the judgment result shows ABNORMAL, the system has a malfunction.

  17. Turn the ignition switch off.

WIRING DIAGRAM

Refer to DTC P0412 Click here.

CAUTION / NOTICE / HINT

Tech Tips


  • By using the GTS to perform the Secondary Air Injection Check operation in the System Check, the air-fuel ratio and the pressure in the secondary air injection system passage can be checked while the secondary air injection system is operating. This helps technicians to troubleshoot the system when it malfunctions. Furthermore, Pending Codes also can be checked by performing System Check / Automatic Mode after the repair.

  • 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, 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 P2444 AND/OR P2445)


    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the GTS on.

    4. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.

    5. Read DTCs.

      Result
      Result Proceed to
      DTC P2444 and/or P2445 is output (w/ air pump heater) A
      DTC P2444 and/or P2445 is output (w/o air pump heater) B
      DTC P2444 and/or P2445, and P0418 are output C
      DTC P2444 and/or P2445, and other DTCs (except P0418) are output D

      If any DTCs other than P2444, P2445 and/or P0418 are output, troubleshoot those DTCs first.


    B

    PERFORM ACTIVE TEST USING GTS (SECONDARY AIR INJECTION SYSTEM OPERATION) Click here

    C

    GO TO AIR PUMP INSPECTION PROCEDURE Click here

    D

    GO TO DTC CHART Click here

    A

  2. CHECK FREEZE FRAME DATA (AIR PUMP FREEZE AND AIR SWITCHING VALVE FREEZE)


    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON and turn the GTS on.

    3. Read the values of Air Pump Freeze and Air Switching Valve Freeze from the freeze frame data recorded previously.

    4. Referring to the following table, proceed to the appropriate step according to the result of the data reading.

      Result
      Result Proceed to
      Air Pump Freeze Air Switching Valve Freeze
      OFF OFF B
      Except above A

    B

    PERFORM ACTIVE TEST USING GTS (SECONDARY AIR INJECTION SYSTEM OPERATION) Click here

    A

  3. PERFORM ACTIVE TEST USING GTS (ACTIVATE THE AIR PUMP HEATER)


    1. B001COKE02
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Air Pump Assembly)

      Disconnect the air pump connector.

    2. Connect the GTS to the DLC3.

    3. Turn the ignition switch to ON and turn the GTS on.

    4. Enter the following menus: Powertrain / Engine and ECT/ Active Test / Activate the Air Pump Heater.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      A18-1 (APH+) - Body ground Activate the Air Pump Heater is ON 11 to 14 V

    NG

    INSPECT RELAY (AIR PMP HTR) Click here

    OK

  4. INSPECT AIR PUMP ASSEMBLY (HEATER RESISTANCE)


    1. Inspect the air pump assembly Click here.


    NG

    REPLACE AIR PUMP ASSEMBLY Click here

    OK

  5. INSPECT RELAY (AIR PMP HTR)


    1. Inspect the AIR PMP HTR relay Click here.


    NG

    REPLACE RELAY (AIR PMP HTR)

    OK

  6. CHECK HARNESS AND CONNECTOR (AIR PMP HTR RELAY - BATTERY)


    1. Remove the AIR PMP HTR relay.

    2. Disconnect the cable from the negative (-) battery terminal.

    3. Disconnect the cable from the positive (+) battery terminal.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      AIR PMP HTR relay terminal 2 - Battery positive (+) terminal Always Below 1 Ω
      AIR PMP HTR relay terminal 2 or Battery positive (+) terminal - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  7. CHECK HARNESS AND CONNECTOR (AIR PUMP - AIR PMP HTR RELAY)


    1. Remove the AIR PMP HTR relay.

    2. Disconnect the air pump connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      AIR PMP HTR relay terminal 3 - A18-1 (APH+) Always Below 1 Ω
      A18-3 (APHG) - Body ground Always Below 1 Ω
      AIR PMP HTR relay terminal 3 or A18-1 (APH+) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  8. PERFORM ACTIVE TEST USING GTS (SECONDARY AIR INJECTION SYSTEM OPERATION)


    1. Start the engine and warm it up.

    2. Turn the ignition switch off.

    3. Connect the GTS to the DLC3.

    4. Turn the ignition switch to ON.

    5. Turn the GTS on.

    6. Enter the following menus: Powertrain / Engine and ECT / Utility / Secondary Air Injection Check / Manual Mode / AIR PUMP: ON, ASV: OPEN and AIR PUMP: OFF, ASV: CLOSE.

      Tech Tips

      When Manual Mode is selected, the GTS initialization (atmospheric pressure measurement) is performed automatically. The initialization takes 10 seconds. After the initialization, air pump and air switching valve operation can be selected.

    7. Start the engine.

    8. Perform the secondary air injection system intrusive operation while the engine is idling.

    9. Check that the air pump (AIR PUMP), air switching valve (ASV) and pressure in the secondary air injection system passage (PRESSURE) status displayed on the GTS, indicate the conditions shown in the table below.

      Standard
      GTS Operation AIR PUMP ASV PRESSURE*
      AIR PUMP: ON, ASV: OPEN ON ON 1.1 kPa or more
      AIR PUMP: OFF, ASV: CLOSE OFF OFF Less than 1.1 kPa

      *: Average pumping pressure. The pressure should be 1 kPa or more when the secondary air injection system operates.

    10. Turn the ignition switch off.

      Note


      • This Secondary Air Injection Check only allows technicians to operate the secondary air injection system for a maximum of 5 seconds.

        Furthermore, the check can only be performed up to 4 times per trip. If the test is repeated, intervals of at least 30 seconds are required between checks.

        While secondary air injection system operation using the GTS is prohibited, the GTS display indicates the prohibition (Wait or Error).

        If an Error is displayed on the GTS during the test, stop the engine for 10 minutes, and then try again.

      • Performing the Secondary Air Injection Check repeatedly may cause damage to the secondary air injection system. If necessary, leave an interval of several minutes between System Check operations to prevent the system from overheating.

      • When performing the Secondary Air Injection Check operation after the battery cable has been reconnected, wait for 7 minutes with the ignition switch turned to ON or the engine running.

      • Turn the ignition switch off when the Secondary Air Injection Check operation finishes.


    NG

    CHECK VACUUM HOSES (AIR PRESSURE SENSOR - AIR SWITCHING VALVE) Click here

    OK

  9. CHECK WHETHER DTC OUTPUT RECURS (DTC P2444 AND/OR P2445)


    1. Start the engine and warm it up.

    2. Turn the ignition switch off.

    3. Connect the GTS to the DLC3.

    4. Turn the ignition switch to ON.

    5. Turn the GTS on.

    6. Clear DTCs (if stored) Click here.

    7. Enter the following menus: Powertrain / Engine and ECT / Utility / Secondary Air Injection Check / Automatic Mode.

    8. Start the engine after the GTS initialization is finished.

    9. Perform the System Check operation by pressing Next.

    10. After operating the secondary air injection system, perform the following to confirm the secondary air injection system pending codes: Press the Exit button.

    11. Check pending DTCs.

    12. Turn the ignition switch off.

      Note


      • When performing the Secondary Air Injection Check operation after the battery cable has been reconnected, wait for 7 minutes with the ignition switch turned to ON or the engine running.

      • Turn the ignition switch off when the Secondary Air Injection Check operation finishes.

      Result
      Result Proceed to
      DTC P2444 and/or P2445 is output A
      No pending DTC B

    B

    CHECK FOR INTERMITTENT PROBLEMS Click here

    A

  10. CHECK VACUUM HOSES (AIR PRESSURE SENSOR - AIR SWITCHING VALVE)


    1. Check the vacuum hose connections with the air pressure sensor and air switching valve.

    2. Inspect the vacuum hose for blockages and damage.

      OK
      Vacuum hose has no blockages or damage.

    NG

    REPAIR OR REPLACE VACUUM HOSE

    OK

  11. INSPECT AIR PRESSURE SENSOR


    1. B001IA7

      Connect a pressure gauge to the air pressure sensor as shown in the illustration.

    2. Connect the GTS to the DLC3.

    3. Turn the ignition switch to ON.

    4. Turn the GTS on.

    5. Enter the following menus: Powertrain / Engine and ECT / Data List / Air Pump Pressure (Absolute).

    6. Check that the pressure displayed on the GTS fluctuates when applying the pressure to the air pressure sensor with the pressure gauge.

      OK
      Pressure fluctuates in response to pressure applied with pressure gauge.

      Tech Tips

      The GTS displays the air pump pressure (Air Pump Pressure (Absolute)) as absolute pressure.


    NG

    REPLACE AIR PRESSURE SENSOR

    OK

  12. CHECK SECONDARY AIR INJECTION SYSTEM PIPE CONNECTIONS

    B001E5E

    1. Check that all the pipes and hoses between the air pump and air switching valve are securely connected.

    2. Inspect the pipes and hoses for blockages and damage.

      OK
      Secondary air injection system piping has no blockages or damage.

    NG

    REPAIR OR REPLACE SECONDARY AIR INJECTION SYSTEM PIPING

    OK

  13. INSPECT AIR INJECTION CONTROL DRIVER (AIR INJECTION CONTROL DRIVER POWER SOURCE CIRCUIT)

    B001HPME04
    Text in Illustration
    *a

    Front view of wire harness connector

    (to Air Injection Driver)

    1. Disconnect the air injection control driver connectors.

    2. Turn the ignition switch to ON.

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      A17-1 (BATT) - Body ground Always 11 to 14 V
      A16-5 (+B) - Body ground Ignition Switch ON 11 to 14 V

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

      Standard Resistance (Check for Open)
      Tester Connection Condition Specified Condition
      A16-1 (E) - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE AIR INJECTION CONTROL DRIVER

    OK

  14. CHECK HARNESS AND CONNECTOR (ECM - AIR INJECTION CONTROL DRIVER)


    1. Disconnect the ECM connector.

    2. Disconnect the air injection control driver connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G180-6 (AIRP) - A16-4 (SIP) Always Below 1 Ω
      G180-6 (AIRP) or A16-4 (SIP) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  15. INSPECT AIR PUMP ASSEMBLY

    B001HFCE02
    Text in Illustration
    *1 Air Pump Wire
    *2 Air Injection Control Driver

    1. Start the engine and warm it up.

    2. Turn the ignition switch off.

    3. Connect the 400 A probe of an ammeter to the (+) wire of the air pump.

    4. Connect the GTS to the DLC3.

    5. Turn the ignition switch to ON.

    6. Turn the GTS on.

    7. Enter the following menus: Powertrain / Engine and ECT / Utility / Secondary Air Injection Check / Manual Mode / AIR PUMP: ON, ASV: OPEN and AIR PUMP: OFF, ASV: CLOSE.

      Tech Tips

      When Manual Mode is selected, the GTS initialization (atmospheric pressure measurement) is performed automatically. The initialization takes 10 seconds. After the initialization, AIR PUMP and ASV operation can be selected.

    8. Measure the current while the air pump is on and off.

      Standard Current
      GTS Operation Air Pump ASV Specified Condition
      AIR PUMP: ON, ASV: OPEN ON OPEN 10 to 40 A
      AIR PUMP: OFF, ASV: CLOSE OFF CLOSE Below 1 A

      Note


      • This Secondary Air Injection Check only allows technicians to operate the AIR system for a maximum of 5 seconds.

        Furthermore, the check can only be performed up to 4 times per trip. If the test is repeated, intervals of at least 30 seconds are required between checks.

        While AIR system operation using the GTS is prohibition (WAIT or ERROR).

        If ERROR is displayed on the GTS during the test, stop the engine for 10 minutes, and then try again.

      • Performing the Secondary Air Injection Check repeatedly may cause damage to the AIR system. If necessary, leave an interval of several minutes between System Check operations to prevent the system from overheating.

      • When performing the Secondary Air Injection Check operation after the battery cable has been reconnected. Wait for 7 minutes with the ignition switch turned to ON or the engine running.

      • Turn the ignition switch off when the Secondary Air Injection Check operation finishes.


    NG

    REPLACE AIR PUMP ASSEMBLY Click here

    OK

  16. PERFORM ACTIVE TEST USING GTS


    1. Disconnect the air injection control driver connector.

    2. B001DT3E03
      Text in Illustration
      *1 Air Injection Control Driver
      *2 ECM
      *a

      Front view of wire harness connector

      (to Air Injection Control Driver)

      Connect terminals DI and SIV of the wire harness connector for the air injection control driver.

    3. Connect the GTS to the DLC3.

    4. Turn the ignition switch to ON.

    5. Turn the GTS on.

    6. Enter the following menus: Powertrain / Engine and ECT / Utility / Secondary Air Injection Check / Manual Mode / AIR PUMP: ON, ASV: OPEN.

      Tech Tips

      When Manual Mode is selected, the GTS initialization (atmospheric pressure measurement) is performed automatically. The initialization takes 10 seconds. After the initialization, AIR PUMP and ASV operation can be selected.

    7. Start the engine.

    8. Perform the secondary air injection system intrusive operation while the engine is idling.

    9. Measure the voltage between the SIV and E terminals of the ECM connector when the secondary air injection system is on and off.

    10. Turn the ignition switch off.

      Note


      • Do not perform the System Check operation repetitively. It may cause the damage in the system. If necessary, leave an interval of several minutes between System Check operations.

      • When performing the Secondary Air Injection Check operation after the battery cable has been reconnected, wait for 7 minutes with the ignition switch ON or the engine running.

      • Turn the ignition switch off when the Secondary Air Injection Check operation finishes.

      Standard Voltage
      Tester Connection Condition Specified Condition
      A16-3 (SIV) - A16-1 (E) AIR PUMP: ON, ASV: OPEN 0.5 to 2 V
      AIR PUMP: OFF, ASV: CLOSE 11 to 14 V
    11. B001DURE03
      Text in Illustration
      *1 Air Injection Control Driver
      *2 ECM
      *a

      Front view of wire harness connector

      (to Air Injection Control Driver)

      Connect terminals DI and SIP of the wire harness connector for the air injection control driver.

    12. Connect the GTS to the DLC3.

    13. Turn the ignition switch to ON.

    14. Turn the GTS on.

    15. Enter the following menus: Powertrain / Engine and ECT / Utility / Secondary Air Injection Check / Manual Mode / AIR PUMP: ON, ASV: OPEN.

      Tech Tips

      When Manual Mode is selected, the GTS initialization (atmospheric pressure measurement) is performed automatically. The initialization takes 10 seconds. After the initialization, AIR PUMP and ASV operation can be selected.

    16. Start the engine.

    17. Perform the secondary air injection system intrusive operation while the engine is idling.

    18. Measure the voltage between the SIP and E terminals of the ECM connector when the secondary air injection system is on and off.

    19. Turn the ignition switch off.

      Note


      • Do not perform the System Check operation repetitively. It may cause the damage in the system. If necessary, leave an interval of several minutes between System Check operations.

      • When performing the Secondary Air Injection Check operation after the battery cable has been reconnected, wait for 7 minutes with the ignition switch ON or the engine running.

      • Turn the ignition switch off when the Secondary Air Injection Check operation finishes.

      Standard Voltage
      Tester Connection Condition Specified Condition
      A16-4 (SIP) - A16-1 (E) AIR PUMP: ON, ASV: OPEN 0.5 to 2 V
      AIR PUMP: OFF, ASV: CLOSE 11 to 14 V

    NG

    REPLACE ECM Click here

    OK

  17. REPLACE AIR INJECTION CONTROL DRIVER


    1. Replace the air injection control driver.


    NEXT

  18. CHECK WHETHER DTC OUTPUT RECURS (DTC P2444 AND/OR P2445)


    1. Start the engine and warm it up.

    2. Turn the ignition switch off.

    3. Connect the GTS to the DLC3.

    4. Turn the ignition switch to ON.

    5. Turn the GTS on.

    6. Clear DTCs (if stored) Click here.

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

    8. Turn the ignition switch to ON.

    9. Enter the following menus: Powertrain / Engine and ECT / Utility / Secondary Air Injection Check / Automatic Mode.

    10. Start the engine after the GTS initialization is finished.

    11. Perform the System Check operation by pressing Next.

    12. After operating the secondary air injection system, perform the following to confirm the secondary air injection system pending codes: Press the Exit button.

    13. Check pending DTCs.

    14. Turn the ignition switch off.

      OK
      No pending DTC output.

      Note


      • When performing the Secondary Air Injection Check operation after the battery cable has been reconnected, wait for 7 minutes with the ignition switch turned to ON or the engine running.

      • Turn the ignition switch off when the Secondary Air Injection Check operation finishes.


    OK

    END

    NG

    REPLACE ECM Click here

  19. REPLACE AIR PUMP ASSEMBLY


    1. Replace the air pump assembly Click here.


    NEXT

  20. CHECK WHETHER DTC OUTPUT RECURS (DTC P2444 AND/OR P2445)


    1. Start the engine and warm it up.

    2. Turn the ignition switch off.

    3. Connect the GTS to the DLC3.

    4. Turn the ignition switch to ON.

    5. Turn the GTS on.

    6. Clear DTCs (if stored) Click here.

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

    8. Turn the ignition switch to ON.

    9. Enter the following menus: Powertrain / Engine and ECT / Utility / Secondary Air Injection Check / Automatic Mode.

    10. Start the engine after the GTS initialization is finished.

    11. Perform the System Check operation by pressing Next.

    12. After operating the secondary air injection system, perform the following to confirm the secondary air injection system pending codes: Press the Exit button.

    13. Check pending DTCs.

    14. Turn the ignition switch off.

      OK
      No pending DTC output.

      Note


      • When performing the Secondary Air Injection Check operation after the battery cable has been reconnected, wait for 7 minutes with the ignition switch turned to ON or the engine running.

      • Turn the ignition switch off when the Secondary Air Injection Check operation finishes.


    OK

    END

    NG

  21. PERFORM ACTIVE TEST USING GTS


    1. Disconnect the air injection control driver connector.

    2. B001DT3E03
      Text in Illustration
      *1 Air Injection Control Driver
      *2 ECM
      *a

      Front view of wire harness connector

      (to Air Injection Control Driver)

      Connect terminals DI and SIV of the wire harness connector for the air injection control driver.

    3. Connect the GTS to the DLC3.

    4. Turn the ignition switch to ON.

    5. Turn the GTS on.

    6. Enter the following menus: Powertrain / Engine and ECT / Utility / Secondary Air Injection Check / Manual Mode / AIR PUMP: ON, ASV: OPEN.

      Tech Tips

      When Manual Mode is selected, the GTS initialization (atmospheric pressure measurement) is performed automatically. The initialization takes 10 seconds. After the initialization, AIR PUMP and ASV operation can be selected.

    7. Start the engine.

    8. Perform the secondary air injection system intrusive operation while the engine is idling.

    9. Measure the voltage between the SIV and E terminals of the ECM connector when the secondary air injection system is on and off.

    10. Turn the ignition switch off.

      Note


      • Do not perform the System Check operation repetitively. It may cause the damage in the system. If necessary, leave an interval of several minutes between System Check operations.

      • When performing the Secondary Air Injection Check operation after the battery cable has been reconnected, wait for 7 minutes with the ignition switch ON or the engine running.

      • Turn the ignition switch off when the Secondary Air Injection Check operation finishes.

      Standard Voltage
      Tester Connection Condition Specified Condition
      A16-3 (SIV) - A16-1 (E) AIR PUMP: ON, ASV: OPEN 0.5 to 2 V
      AIR PUMP: OFF, ASV: CLOSE 11 to 14 V
    11. B001DURE03
      Text in Illustration
      *1 Air Injection Control Driver
      *2 ECM
      *a

      Front view of wire harness connector

      (to Air Injection Control Driver)

      Connect terminals DI and SIP of the wire harness connector for the air injection control driver.

    12. Connect the GTS to the DLC3.

    13. Turn the ignition switch to ON.

    14. Turn the GTS on.

    15. Enter the following menus: Powertrain / Engine and ECT / Utility / Secondary Air Injection Check / Manual Mode / AIR PUMP: ON, ASV: OPEN.

      Tech Tips

      When Manual Mode is selected, the GTS initialization (atmospheric pressure measurement) is performed automatically. The initialization takes 10 seconds. After the initialization, AIR PUMP and ASV operation can be selected.

    16. Start the engine.

    17. Perform the secondary air injection system intrusive operation while the engine is idling.

    18. Measure the voltage between the SIP and E terminals of the ECM connector when the secondary air injection system is on and off.

    19. Turn the ignition switch off.

      Note


      • Do not perform the System Check operation repetitively. It may cause the damage in the system. If necessary, leave an interval of several minutes between System Check operations.

      • When performing the Secondary Air Injection Check operation after the battery cable has been reconnected, wait for 7 minutes with the ignition switch ON or the engine running.

      • Turn the ignition switch off when the Secondary Air Injection Check operation finishes.

      Standard Voltage
      Tester Connection Condition Specified Condition
      A16-4 (SIP) - A16-1 (E) AIR PUMP: ON, ASV: OPEN 0.5 to 2 V
      AIR PUMP: OFF, ASV: CLOSE 11 to 14 V

    NG

    REPLACE ECM Click here

    OK

  22. REPLACE AIR INJECTION CONTROL DRIVER


    1. Replace the air injection control driver.


    NEXT

  23. CHECK WHETHER DTC OUTPUT RECURS (DTC P2444 AND/OR P2445)


    1. Start the engine and warm it up.

    2. Turn the ignition switch off.

    3. Connect the GTS to the DLC3.

    4. Turn the ignition switch to ON.

    5. Turn the GTS on.

    6. Clear DTCs (if stored) Click here.

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

    8. Turn the ignition switch to ON.

    9. Enter the following menus: Powertrain / Engine and ECT / Utility / Secondary Air Injection Check / Automatic Mode.

    10. Start the engine after the GTS initialization is finished.

    11. Perform the System Check operation by pressing Next.

    12. After operating the secondary air injection system, perform the following to confirm the secondary air injection system pending codes: Press the Exit button.

    13. Check pending DTCs.

    14. Turn the ignition switch off.

      OK
      No pending DTC output.

      Note


      • When performing the Secondary Air Injection Check operation after the battery cable has been reconnected, wait for 7 minutes with the ignition switch turned to ON or the engine running.

      • Turn the ignition switch off when the Secondary Air Injection Check operation finishes.


    OK

    END

    NG

    REPLACE ECM Click here