Land Cruiser URJ200 URJ202 GRJ200 VDJ200 - 1UR-FE ENGINE CONTROL

DESCRIPTION

MONITOR DESCRIPTION

CONFIRMATION DRIVING PATTERN

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK AIR INJECTION CONTROL DRIVER (POWER SOURCE CIRCUIT)

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

INSPECT AIR INJECTION CONTROL DRIVER (DI TERMINAL VOLTAGE)

PERFORM ACTIVE TEST USING GTS

REPLACE AIR INJECTION CONTROL DRIVER

CHECK WHETHER DTC OUTPUT RECURS

DTC P1613 Secondary Air Injection Driver Malfunction

DESCRIPTION

Refer to DTC P0412 ().

DTC No.	DTC Detection Condition	Trouble Area
P1613	Either condition (1) or (2) is met: (1) All conditions are met for 3 seconds or more (1 trip detection logic): Either the air pump or the air switching valve is not operating. Diagnostic signal from the air injection control driver is 80%. Battery voltage is 8 V or higher. (2) Both conditions are met for 3 seconds or more (1 trip detection logic): Battery voltage is 8 V or higher. Diagnostic signal from the air injection control driver is abnormal (duty signal other than 0, 20, 40, 80 or 100%).	Air injection control driver Open in air injection control driver ground circuit
	All conditions met for 3 seconds or more (1 trip detection logic): Air injection system is operating (the air switching valve and air pump are on). Diagnostic signal from the air injection control driver is 0%. Battery voltage is 8 V or higher.	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
	Both conditions met for 3 seconds or more (1 trip detection logic): Battery voltage is 8 V or higher. Diagnostic signal from the air injection control driver is 100%.	Open or short in air injection control driver +B circuit Open in diagnostic information signal circuit (Air injection control driver - ECM) Air injection control driver ECM

MONITOR DESCRIPTION

This DTC indicates an open or short circuit in the circuit containing the air pump of the secondary air injection system. The air injection control driver performs diagnosis of the air pump, air switching valve and itself, and sends the results of this diagnosis to the ECM as a duty signal. When the ECM receives a signal indicating a malfunction in the air pump, air switching valve or air injection control driver, it immediately illuminates the MIL and stores a DTC.

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 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 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.

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 Secondary air injection 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: P1613.

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

Refer to DTC P0412 ().

INSPECTION PROCEDURE

HINT:

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.

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.CHECK AIR INJECTION CONTROL DRIVER (POWER SOURCE CIRCUIT)

Dtc P1613 Secondary Air Injection Driver Malfunction. 1UR-FE ENGINE CONTROL. Land Cruiser URJ200 URJ202 GRJ200 VDJ200

Disconnect the air injection control driver connector.

Turn the engine switch on (IG).

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

Standard Voltage:
Tester Connection Switch Condition Specified Condition
C61-5 (+B) - Body ground Engine switch on (IG) 11 to 14 V (near battery voltage)

Text in Illustration
*a	Front view of wire harness connector (to Air Injection Control Driver)

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

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

Disconnect the ECM connector.

Disconnect the air injection control driver connector.

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

Standard Resistance:

for RHD
Tester Connection	Condition	Specified Condition
C61-4 (SIP) - C46-54 (AIRP)	Always	Below 1 Ω
C61-3 (SIV) - C46-28 (AIRV)	Always	Below 1 Ω
C61-2 (DI) - C46-30 (AIDI)	Always	Below 1 Ω
C61-1 (E) - Body ground	Always	Below 1 Ω
C61-4 (SIP) or C46-54 (AIRP) - Body ground	Always	10 kΩ or higher
C61-3 (SIV) or C46-28 (AIRV) - Body ground	Always	10 kΩ or higher
C61-2 (DI) or C46-30 (AIDI) - Body ground	Always	10 kΩ or higher

for LHD
Tester Connection	Condition	Specified Condition
C61-4 (SIP) - C45-54 (AIRP)	Always	Below 1 Ω
C61-3 (SIV) - C45-28 (AIRV)	Always	Below 1 Ω
C61-2 (DI) - C45-30 (AIDI)	Always	Below 1 Ω
C61-1 (E) - Body ground	Always	Below 1 Ω
C61-4 (SIP) or C45-54 (AIRP) - Body ground	Always	10 kΩ or higher
C61-3 (SIV) or C45-28 (AIRV) - Body ground	Always	10 kΩ or higher
C61-2 (DI) or C45-30 (AIDI) - Body ground	Always	10 kΩ or higher

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

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

Disconnect the air injection control driver connector.

Turn the engine switch on (IG).

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

Standard Voltage:
Tester Connection Switch Condition Specified Condition
C61-2 (DI) - C61-1 (E) Engine switch on (IG) 11 to 14 V (near battery voltage)

Text in Illustration
*a	Front view of wire harness connector (to Air Injection Control Driver)

REPLACE ECM ()

OK

4.PERFORM ACTIVE TEST USING GTS

Disconnect the air injection control driver connector.

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

Text in Illustration
*1	Air Injection Control Driver
*2	ECM
*a	Front view of wire harness connector (to Air Injection Control Driver)

Connect the GTS to the DLC3.

Turn the engine switch on (IG) and turn the GTS on.

Enter the following menus: Powertrain / Engine and ECT / Utility / Secondary Air Injection Check / Manual Mode / AIR PUMP: ON, ASV 1: OPEN, ASV 2: OPEN.

HINT:

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.

Start the engine.

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

Measure the voltage between the SIV and E terminals of the ECM connector when the secondary air injection system is ON and OFF.

Turn the engine switch off.

NOTICE:

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
C61-3 (SIV) - C61-1 (E) AIR PUMP: ON, ASV: OPEN 0.5 to 2 V
C61-3 (SIV) - C61-1 (E) AIR PUMP: OFF, ASV: CLOSE 11 to 14 V

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

Text in Illustration
*1	Air Injection Control Driver
*2	ECM
*a	Front view of wire harness connector (to Air Injection Control Driver)

Connect the GTS to the DLC3.

Turn the engine switch on (IG) and turn the GTS on.

Enter the following menus: Powertrain / Engine and ECT / Utility / Secondary Air Injection Check / Manual Mode / AIR PUMP: ON, ASV 1: OPEN, ASV 2: OPEN.

HINT:

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.

Start the engine.

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

Measure the voltage between the SIP and E terminals of the ECM connector when the secondary air injection system is ON and OFF.

Turn the engine switch off.

NOTICE:

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
C61-4 (SIP) - C61-1 (E) AIR PUMP: ON, ASV: OPEN 0.5 to 2 V
C61-4 (SIP) - C61-1 (E) AIR PUMP: OFF, ASV: CLOSE 11 to 14 V

Reconnect the air injection control driver connector.

REPLACE ECM ()

OK

5.REPLACE AIR INJECTION CONTROL DRIVER

Replace the air injection control driver ().

NEXT

6.CHECK WHETHER DTC OUTPUT RECURS

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 ().

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).

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

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

Read DTCs.

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

Turn the engine switch off.

NOTICE:

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.

REPLACE ECM ()

END

1UR-FE ENGINE CONTROL

Land Cruiser URJ200 URJ202 GRJ200 VDJ200

SFI SYSTEM

Tester Connection	Switch Condition	Specified Condition
C61-5 (+B) - Body ground	Engine switch on (IG)	11 to 14 V (near battery voltage)