SFI SYSTEM (w/ Secondary Air Injection System), Diagnostic DTC:P1613

DTC Code DTC Name
P1613 Secondary Air Injection System Driver

DESCRIPTION

Refer to DTC P0412 Click here.

DTC No. DTC Detection Condition Trouble Area
P1613

Either of following conditions (1) or (2) met

(1) All of following conditions met (1 trip detection logic):


  • Either of air pump or air switching valve not operating

  • Diagnostic signal from air injection control driver 80%

  • Battery voltage 8 V or more

(2) Both of following conditions met (1 trip detection logic):


  • Battery voltage 8 V or more

  • Diagnostic signal from air injection control driver abnormal (duty signal other than 0, 20, 40, 80 and 100%)

  • Air injection control driver

  • Open in air injection control driver ground circuit
P1613

  • All of following conditions met (1 trip detection logic):


    1. Secondary air injection system operating (air switching valve ON and air pump ON)

    2. Diagnostic signal from air injection control driver 0%

    3. Battery voltage 8 V or more

  • Short in diagnostic information signal circuit (air injection control driver - ECM)

  • Open or short in air pump and air switching valve command signal circuit (air injection control driver - ECM)

  • Open in air injection control driver ground circuit

  • Air injection control driver

  • ECM
P1613

  • Both of following conditions met (1 trip detection logic):


    1. Battery voltage 8 V or more

    2. Diagnostic signal from air injection control driver 100%

  • Open or short in air injection control driver power source circuit

  • Open in diagnostic information signal circuit (air injection control driver - ECM)

  • Air injection control driver

  • ECM

MONITOR DESCRIPTION

For a short time after cold engine starts, the ECM transmits command signals to the Air Injection Control Driver (AID) to drive the air pump and the Air Switching Valve (ASV). The AID detects open and short circuits according to the voltages at the AID terminals to the air pump and ASV, and the circuit voltage of the AID power source, and transmits diagnostic information as a signal to the ECM.

If the Secondary Air Injection (AIR) system circuit or the AID itself malfunctions, the AID sends a malfunction signal (duty signal) as diagnostic information to the ECM (when the system is normal, a system normal signal is sent). The ECM sets the DTC based on the diagnostic information from the AID.

EXAMPLE:


  1. The duty ratio of the diagnostic signal from the AID is 0 or 100% (remains at 0 V or the same as battery voltage).

  2. The duty ratio of the diagnostic signal from the AID shows an impossible ratio (other than 0, 20, 40, 80 and 100%).

  3. The AID outputs the normal signal (normal duty signal: 80%) while the system is not operating.

WIRING DIAGRAM

Refer to DTC P0412 Click here.

INSPECTION PROCEDURE

CAUTION:

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

Tech Tips

Read freeze frame data using the intelligent tester. 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 P1613)


    1. Connect the intelligent tester to the DLC3.

    2. Turn the ignition switch to ON and turn the tester ON.

    3. Enter the following menus: Powertrain / Engine and ECT / DTC.

    4. Read DTCs.

      Result
      Display (DTC Output) Proceed To
      P01613 A
      P01613 and other DTCs B

      Tech Tips

      If any DTCs other than P1613 are output, troubleshoot those DTCs first.


    B

    GO TO DTC CHART Click here

    A

  2. CHECK TERMINAL VOLTAGE (POWER SOURCE OF AIR INJECTION CONTROL DRIVER)

    B007RBDE61
    Text in Illustration
    *a

    Front view of wire harness connector

    (to Air Injection Control Driver)

    1. Disconnect the air injection control driver connector.

    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
      B12-5 (+B) - Body ground Ignition Switch ON 11 to 14 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. CHECK HARNESS AND CONNECTOR (AIR INJECTION CONTROL DRIVER - ECM, BODY GROUND)


    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
      B71-12 (AIRP) - B12-4 (SIP) Always Below 1 Ω
      B71-43 (AIRV) - B12-3 (SIV) Always Below 1 Ω
      B71-14 (AIDI) - B12-2 (DI) Always Below 1 Ω
      B12-1 (E) - Body ground Always Below 1 Ω
      B71-12 (AIRP) or B12-4 (SIP) - Body ground Always 10 kΩ or higher
      B71-43 (AIRV) or B12-3 (SIV) - Body ground Always 10 kΩ or higher
      B71-14 (AIDI) or B12-2 (DI) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. INSPECT AIR INJECTION CONTROL DRIVER (DI TERMINAL VOLTAGE)

    B007RBDE62
    Text in Illustration
    *a

    Front view of wire harness connector

    (to Air Injection Control Driver)

    1. Disconnect the air injection control driver connector.

    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
      B12-2 (DI) - B12-1 (E) Ignition Switch ON 11 to 14 V

    NG

    REPLACE ECM Click here

    OK

  5. PERFORM ACTIVE TEST USING INTELLIGENT TESTER


    1. Disconnect the air injection control driver connector.

    2. B007UZJE46
      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 intelligent tester to the DLC3.

    4. Turn the ignition switch to ON.

    5. Turn the intelligent tester 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 intelligent tester 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
      B12-3 (SIV) - B12-1 (E) AIR PUMP: ON, ASV: OPEN 0.5 to 2 V
      AIR PUMP: OFF, ASV: CLOSE 11 to 14 V
    11. B007UZJE47
      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 intelligent tester to the DLC3.

    13. Turn the ignition switch to ON.

    14. Turn the intelligent tester 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 intelligent tester 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
      B12-4 (SIP) - B12-1 (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

  6. REPLACE AIR INJECTION CONTROL DRIVER


    1. Replace the air injection control driver.


    NEXT

  7. CHECK WHETHER DTC OUTPUT RECURS (SYSTEM CHECK AUTOMATIC MODE)


    1. Start the engine and warm it up.

    2. Turn the ignition switch off.

    3. Connect the intelligent tester to the DLC3.

    4. Turn the ignition switch to ON.

    5. Turn the intelligent tester on.

    6. Clear the DTCs 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 intelligent tester initialization is finished.

    11. Perform the System Check operation by pressing ENTER (Next).

    12. After operating the secondary air injection system, press the Exit button to confirm the secondary air injection system pending codes.

    13. Check Pending DTCs.

      OK
      No pending DTC output.

    14. 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.


    NG

    REPLACE ECM Click here

    OK

    END