SFI SYSTEM, Diagnostic DTC:P1613, P1614

DTC Code DTC Name
P1613 Secondary Air Injection Driver Malfunction
P1614 Secondary Air Injection System Driver Bank 2

DESCRIPTION

Refer to DTC P0412 Click here.

DTC Code DTC Detection Condition Trouble Area

P1613

P1614

Either of the following conditions (1) or (2) is met:

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


  • Either the air pump or the air switching valve is not operating.

  • The diagnostic signal from the Air Injection Control Driver (AID) is 80%.

  • The battery voltage is 8 V or higher.

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


  • The battery voltage is 8 V or higher.

  • The diagnostic signal from the AID is abnormal (duty signal other than 0, 20, 40, 80 and 100%).

  • Air Injection Control Driver (AID)

  • Open in AID ground circuit

P1613

P1614

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


    1. The air injection system is operating (Air Switching Valve [ASV] ON and air pump ON).

    2. The diagnostic signal from the Air Injection Control Driver (AID) is 0%.

    3. The battery voltage is 8 V or higher.

  • Short in diagnostic information signal circuit (AID - ECM)

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

  • Open in AID ground circuit

  • AID

  • ECM

P1613

P1614

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


    1. The battery voltage is 8 V or higher.

    2. The diagnostic signal from the Air Injection Control Driver (AID) is 100%.

  • Open or short in AID +B circuit

  • Open in diagnostic information signal circuit (AID - ECM)

  • AID

  • ECM

MONITOR DESCRIPTION

For a short time after a cold engine start, 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 stores 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.

CAUTION / NOTICE / HINT

Tech Tips


  • By using the intelligent tester to perform the Secondary Air Injection Check operation in the Utility, 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.

  • 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 OR P1614)


    1. Connect the intelligent tester to the DLC3.

    2. Turn the engine switch on (IG) and turn the tester on.

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

    4. Read DTCs.

      Result
      Result Proceed to
      P1613 and/or P1614 are output A
      P1613 and/or P1614 and other DTCs are output B

      If any DTCs other than P1613 and P1614 are output, troubleshoot those DTCs first.


    B

    GO TO DTC CHART Click here

    A

  2. CHECK AIR INJECTION CONTROL DRIVER (POWER SOURCE CIRCUIT)


    1. Disconnect the Air Injection Control Driver (AID) connector.

      B001AW4E07
      *1 Front view of wire harness connector: (to AID for Bank 1)
      *2 Front view of wire harness connector: (to AID for Bank 2)

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      C30-5 (+B) - Body ground Engine switch on (IG) 11 to 14 V (near battery voltage)
      C32-5 (+B2) - Body ground Engine switch on (IG) 11 to 14 V (near battery voltage)

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. CHECK HARNESS AND CONNECTOR (AID - ECM, BODY GROUND)


    1. Disconnect the ECM connector.

    2. Disconnect the AID connector.

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

      Standard Resistance
      for LHD
      Tester Connection Condition Specified Condition
      C53-63 (AIRP) - C30-4 (SIP) Always Below 1 Ω
      C53-61 (AIRV) - C30-3 (SIV) Always Below 1 Ω
      C53-62 (ARP2) - C32-4 (SIP2) Always Below 1 Ω
      C53-60 (ARV2) - C32-3 (SIV2) Always Below 1 Ω
      C53-52 (AIDI) - C30-2 (DI) Always Below 1 Ω
      C53-51 (AID2) - C32-2 (DI2) Always Below 1 Ω
      C30-1 (E) - Body ground Always Below 1 Ω
      C32-1 (E2) - Body ground Always Below 1 Ω
      C53-63 (AIRP) or C30-4 (SIP) - Body ground Always 10 kΩ or higher
      C53-61 (AIRV) or C30-3 (SIV) - Body ground Always 10 kΩ or higher
      C53-62 (ARP2) or C32-4 (SIP2) - Body ground Always 10 kΩ or higher
      C53-60 (ARV2) or C32-3 (SIV2) - Body ground Always 10 kΩ or higher
      C53-52 (AIDI) or C30-2 (DI) - Body ground Always 10 kΩ or higher
      C53-51 (AID2) or C32-2 (DI2) - Body ground Always 10 kΩ or higher
      for RHD
      Tester Connection Condition Specified Condition
      C54-63 (AIRP) - C30-4 (SIP) Always Below 1 Ω
      C54-61 (AIRV) - C30-3 (SIV) Always Below 1 Ω
      C54-62 (ARP2) - C32-4 (SIP2) Always Below 1 Ω
      C54-60 (ARV2) - C32-3 (SIV2) Always Below 1 Ω
      C54-52 (AIDI) - C30-2 (DI) Always Below 1 Ω
      C54-51 (AID2) - C32-2 (DI2) Always Below 1 Ω
      C30-1 (E) - Body ground Always Below 1 Ω
      C32-1 (E2) - Body ground Always Below 1 Ω
      C54-63 (AIRP) or C30-4 (SIP) - Body ground Always 10 kΩ or higher
      C54-61 (AIRV) or C30-3 (SIV) - Body ground Always 10 kΩ or higher
      C54-62 (ARP2) or C32-4 (SIP2) - Body ground Always 10 kΩ or higher
      C54-60 (ARV2) or C32-3 (SIV2) - Body ground Always 10 kΩ or higher
      C54-52 (AIDI) or C30-2 (DI) - Body ground Always 10 kΩ or higher
      C54-51 (AID2) or C32-2 (DI2) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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


    1. Disconnect the AID connector.

      B001AW4E08
      *1 Front view of wire harness connector: (to AID for Bank 1)
      *2 Front view of wire harness connector: (to AID for Bank 2)

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      C30-2 (DI) - C30-1 (E) Engine switch on (IG) 11 to 14 V (near battery voltage)
      C32-2 (DI2) - C32-1 (E2) Engine switch on (IG) 11 to 14 V (near battery voltage)

    NG

    REPLACE ECM Click here

    OK

  5. PERFORM ACTIVE TEST USING INTELLIGENT TESTER


    1. Disconnect the AID connectors.

      B001AGHE05
      *1 AID (for Bank 1)
      *2 AID (for Bank 2)
      *3 Front view of wire harness connector: (to AID for Bank 1)
      *4 Front view of wire harness connector: (to AID for Bank 2)

    2. Connect terminals DI and SIV or DI2 and SIV2 of the wire harness connector for the AID.

    3. Connect the intelligent tester to the DLC3.

    4. Turn the engine switch on (IG).

    5. Turn the tester on.

    6. Enter the following menus: Powertrain / Engine and ECT / Utility / Secondary Air Injection Check / Manual Mode / AIR PUMP 1: ON, ASV 1: OPEN or AIR PUMP 2: ON, ASV 2: 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 AIR system forced operation while the engine is idling.

    9. Measure the voltage between the SIV and E or SIV2 and E2 terminals of the ECM connector when the AIR system is ON and OFF.

    10. Turn the engine switch off.

      Note


      • Performing Secondary Air Injection Check repeatedly may cause damage to the secondary air injection system. If it is necessary to repeat the check, 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 engine switch turned on (IG) or the engine running.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      C30-3 (SIV) - C30-1 (E) AIR PUMP: ON, ASV: OPEN 0.5 to 2 V
      C32-3 (SIV2) - C32-1 (E2) AIR PUMP: ON, ASV: OPEN 0.5 to 2 V
      C30-3 (SIV) - C30-1 (E) AIR PUMP: OFF, ASV: CLOSE 11 to 14 V
      C32-3 (SIV2) - C32-1 (E2) AIR PUMP: OFF, ASV: CLOSE 11 to 14 V

    11. Connect terminals DI and SIP or DI2 and SIP2 of the wire harness connector for the AID.

      B001AGHE06
      *1 AID (for Bank 1)
      *2 AID (for Bank 2)
      *3 Front view of wire harness connector: (to AID for Bank 1)
      *4 Front view of wire harness connector: (to AID for Bank 2)

    12. Connect the intelligent tester to the DLC3.

    13. Turn the engine switch on (IG).

    14. Turn the tester on.

    15. Enter the following menus: Powertrain / Engine and ECT / Utility / Secondary Air Injection Check / Manual Mode / AIR PUMP 1: ON, ASV 1: OPEN or AIR PUMP 2: ON, ASV 2: 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 AIR system forced operation while the engine is idling.

    18. Measure the voltage between the SIP and E or SIP2 and E2 terminals of the ECM connector when the AIR system is ON and OFF.

    19. Turn the engine switch off.

      Note


      • Performing Secondary Air Injection Check repeatedly may cause damage to the secondary air injection system. If it is necessary to repeat the check, 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 engine switch turned on (IG) or the engine running.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      C30-4 (SIP) - C30-1 (E) AIR PUMP: ON, ASV: OPEN 0.5 to 2 V
      C32-4 (SIP2) - C32-1 (E2) AIR PUMP: ON, ASV: OPEN 0.5 to 2 V
      C30-4 (SIP) - C30-1 (E) AIR PUMP: OFF, ASV: CLOSE 11 to 14 V
      C32-4 (SIP2) - C32-1 (E2) 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 Click here.


    NEXT

  7. CONFIRM WHETHER DTC OUTPUT RECURS


    1. Start the engine and warm it up.

    2. Turn the engine switch off.

    3. Connect the intelligent tester to the DLC3.

    4. Turn the engine switch on (IG) and turn the tester on.

    5. Clear DTCs Click here.

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

    7. Start the engine after the tester initialization is finished.

    8. Perform the Automatic Mode operation by pressing Next.

    9. After operating the AIR system, perform the following to confirm the AIR system pending codes: Press the Exit button.

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

    11. Read DTCs.

      Result
      Result Proceed to
      No DTC is output A
      Other DTCs are output B

    12. Turn the engine switch off.

      Note


      • When performing the Secondary Air Injection Check operation after the battery cable has been reconnected, wait for 7 minutes with the engine switch turned on (IG) or the engine running.

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


    A

    END

    B

    REPLACE ECM Click here