Land Cruiser URJ200 URJ202 GRJ200 VDJ200 - 1UR-FE ENGINE CONTROL
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))
DTC P0416 Secondary Air Injection System Switching Valve "B" Circuit Open
DTC P0417 Secondary Air Injection System Switching Valve "B" Circuit Shorted
DESCRIPTION
The ECM operates the air injection VSV relay (AI-VSV) which causes the air switching valve (for bank 2) to operate.
| DTC No. | DTC Detection Condition | Trouble Area |
| P0416 | Open or short in the air injection VSV relay (AI-VSV) circuit for 3 seconds (1 trip detection logic). | Open or short in air injection VSV relay (AI-VSV) circuit Air injection VSV relay (AI-VSV) ECM |
| P0417 | Open or short in the air injection VSV relay (AI-VSV) circuit for 3 seconds (1 trip detection logic). | Open or short in air injection VSV relay (AI-VSV) circuit Air injection VSV relay (AI-VSV) ECM |
MONITOR DESCRIPTION
These DTCs are designed to detect a malfunction in the air injection VSV (AI-VSV) relay circuit. When the system is normal, the battery voltage is applied to terminal AIR1 of the ECM while the air injection VSV (AI-VSV) relay is turned off, and the battery voltage is not applied to terminal AIR1 of the ECM while the air injection VSV (AI-VSV) relay is turned on. The ECM illuminates the MIL and stores a DTC when either one of the following conditions is detected.
The battery voltage is not applied to terminal AIR1 while the air injection VSV (AI-VSV) relay is off.
The battery voltage is applied to terminal AIR1 while the air injection VSV (AI-VSV) relay is on.
CONFIRMATION DRIVING PATTERN
- NOTICE:
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.
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.
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.
Start the engine and warm it up.
Turn the engine switch off.
Connect the GTS to the DLC3.
Turn the engine switch on (IG).
Turn the GTS on.
Clear DTCs (even if no DTCs are stored, perform the clear DTC operation) ().
Turn the engine switch off and wait for at least 30 seconds.
Turn the engine switch on (IG) and turn the GTS on.
Enter the following menus: Powertrain / Engine and ECT / Utility / Secondary air injection check / Automatic Mode.
Start the engine after the GTS initialization is finished.
Perform the System Check operation by pressing ENTER (Next).
Perform the following to confirm the AIR system pending codes: Press ENTER (Exit).
Check for pending DTCs.
- OK:
- No pending DTC is output.
After "Secondary air injection check" is completed, check for All Readiness by entering the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
Input the DTC: P0416 or P0417.
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:
If the judgment result shows NORMAL, the system is normal.
If the judgment result shows ABNORMAL, the system has a malfunction.
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 AIR INJECTION VSV RELAY (AI-VSV) |
Inspect the air injection VSV relay (AI-VSV) ().
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| OK | |
| 2.CHECK AIR INJECTION VSV RELAY (AI-VSV) (POWER SOURCE) |
Remove the air injection VSV relay (AI-VSV).
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
| *a | Engine Room Relay Block |
| *1 | Air Injection VSV Relay (AI-VSV) |
Reinstall the air injection VSV relay (AI-VSV).
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| OK | |
| 3.CHECK HARNESS AND CONNECTOR (ECM - AIR INJECTION VSV RELAY (AI-VSV)) |
Remove the air injection VSV relay (AI-VSV).
Disconnect the ECM connector.
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
Reinstall the air injection VSV relay (AI-VSV).
Reconnect the ECM connector.
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| OK | ||
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