Dtc P0416 Secondary Air Injection System Switching Valve B Circuit Open

DESCRIPTION

MONITOR DESCRIPTION

CONFIRMATION DRIVING PATTERN

WIRING DIAGRAM

INSPECTION PROCEDURE

INSPECT AIR INJECTION VSV RELAY (AI-VSV)

CHECK AIR INJECTION VSV RELAY (AI-VSV) (POWER SOURCE)

CHECK HARNESS AND CONNECTOR (ECM - AIR INJECTION VSV RELAY (AI-VSV))

DESCRIPTION

MONITOR DESCRIPTION

1. The battery voltage is not applied to terminal AIR1 while the air injection VSV (AI-VSV) relay is off.
   
2. The battery voltage is applied to terminal AIR1 while the air injection VSV (AI-VSV) relay is on.
   

CONFIRMATION DRIVING PATTERN

NOTICE:

1. 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 AIR 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.
   
2. Performing Secondary Air Injection Check repeatedly may cause damage to the secondary 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.
   
3. 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.
   
4. Turn the engine switch off when the Secondary Air Injection Check operation finishes.
   

1. Start the engine and warm it up.
   
2. Turn the engine switch off.
   
3. Connect the GTS to the DLC3.
   
4. Turn the engine switch on (IG).
   
5. Turn the GTS on.
   
6. Clear DTCs (even if no DTCs are stored, perform the clear DTC operation) (Click here).
   
7. Turn the engine switch off and wait for at least 30 seconds.
   
8. Turn the engine switch on (IG) 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 ENTER (Next).
    
12. Perform the following to confirm the AIR system pending codes: Press ENTER (Exit).
    
13. Check for pending DTCs.
    

    OK:

    No pending DTC is output.
    

14. After "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: P0416 or P0417.
    
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

    HINT:

    1. If the judgment result shows NORMAL, the system is normal.
       
    2. If the judgment result shows ABNORMAL, the system has a malfunction.
       
17. Turn the engine switch off.
    

WIRING DIAGRAM

INSPECTION PROCEDURE

NOTICE:

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

HINT:

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.

1. Inspect the air injection VSV relay (AI-VSV) (Click here).
   

1. Remove the air injection VSV relay (AI-VSV).
   

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

   Standard Voltage:

   Tester Connection	Switch Condition	Specified Condition
   Air injection VSV relay (AI-VSV) terminal 2 - Body ground	Engine switch on (IG)	11 to 14 V
   Air injection VSV relay (AI-VSV) terminal 5 - Body ground	Engine switch on (IG)	11 to 14 V

   Text in Illustration

   *a	Engine Room Relay Block
   *1	Air Injection VSV Relay (AI-VSV)

3. Reinstall the air injection VSV relay (AI-VSV).
   

1. Remove the air injection VSV relay (AI-VSV).
   

2. Disconnect the ECM connector.
   

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

   Standard Resistance:

   
   

   for RHD

   Tester Connection	Condition	Specified Condition
   Air injection VSV relay (AI-VSV) terminal 1 - C46-61 (AIR1)	Always	Below 1 Ω
   Air injection VSV relay (AI-VSV) terminal 1 or C46-61 (AIR1) - Body ground	Always	10 kΩ or higher

   
   

   for LHD

   Tester Connection	Condition	Specified Condition
   Air injection VSV relay (AI-VSV) terminal 1 - C45-61 (AIR1)	Always	Below 1 Ω
   Air injection VSV relay (AI-VSV) terminal 1 or C45-61 (AIR1) - Body ground	Always	10 kΩ or higher

4. Reinstall the air injection VSV relay (AI-VSV).
   

5. Reconnect the ECM connector.