Dtc P0488 Exhaust Gas Recirculation Throttle Position Control Range / Performance

Engine Hybrid System. Land Cruiser. Urj200, 202 Grj200 Vdj200
1Vd-Ftv Engine Control. Land Cruiser. Urj200, 202 Grj200 Vdj200

DESCRIPTION

MONITOR DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK HARNESS AND CONNECTOR (THROTTLE CONTROL MOTOR POWER SOURCE)

CHECK HARNESS AND CONNECTOR (GROUND CIRCUIT)

CHECK HARNESS AND CONNECTOR (THROTTLE CONTROL MOTOR - ECM)

REPLACE DIESEL THROTTLE BODY ASSEMBLY (for Bank 1 or Bank 2)

CHECK WHETHER DTC OUTPUT RECURS

REPLACE ECM

REPAIR OR REPLACE HARNESS OR CONNECTOR (THROTTLE CONTROL MOTOR - BATTERY)

REPAIR OR REPLACE HARNESS OR CONNECTOR

CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED

DTC P0488 Exhaust Gas Recirculation Throttle Position Control Range / Performance

DTC P213B Exhaust Gas Recirculation Throttle Position Control (Range / Performance)


DESCRIPTION

The ECM opens and closes the throttle valve using a rotary solenoid type actuator. Due to the opening and closing of the valve, the exhaust gas recirculation volume can be properly controlled. Also, engine vibration and noise will be reduced by closing the valve when the engine is stopped.

P0488
DTC Detection Drive Pattern
DTC Detection Condition
Trouble Area
Over a period of 10 seconds or more, slowly raise engine speed to 3000 rpm and lower it
The throttle motor activation duty is less than 10% or 90% or more for 30 seconds (1 trip detection logic).
HINT:
The throttle valve commanded duty can be read using the tester as the Data List item Throttle Motor Duty.
  1. Throttle valve (for Bank 1) stuck
  2. Throttle valve (for Bank 1) does not move smoothly
  3. Open or short in throttle control motor (for Bank 1) circuit
  4. ECM

P213B
DTC Detection Drive Pattern
DTC Detection Condition
Trouble Area
Over a period of 10 seconds or more, slowly raise engine speed to 3000 rpm and lower it
The throttle motor activation duty is less than 10% or 90% or more for 30 seconds (1 trip detection logic).
HINT:
The throttle valve commanded duty can be read using the tester as the Data List item Throttle Motor Duty.
  1. Throttle valve (for Bank 2) stuck
  2. Throttle valve (for Bank 2) does not move smoothly
  3. Open or short in throttle control motor (for Bank 2) circuit
  4. ECM

Related Data List
DTC No.
Data List
P0488
  1. Throttle Motor Duty #1
  2. Throttle Motor Duty #2
  3. Actual Throttle Position
  4. Actual Throttle Position #2
P213B

Reference
Condition
Throttle Valve Position
Moment when accelerator pedal is depressed further or released at 3000 rpm
Throttle valve opening angle varies smoothly

MONITOR DESCRIPTION

The ECM opens and closes the throttle valve by adjusting the current flowing to the rotary solenoid with a duty ratio. If the throttle valve does not move smoothly or is stuck, the duty ratio used during valve movement control increases or decreases greatly. The ECM will determine that the throttle valve is malfunctioning and illuminate the MIL.

Land Cruiser. Urj200, 202 Grj200 Vdj200.1Vd-Ftv Engine Control.Ecd System (W/ Dpf). Dtc P0488 Exhaust Gas Recirculation Throttle Position Control Range / Performance


WIRING DIAGRAM


Land Cruiser. Urj200, 202 Grj200 Vdj200.1Vd-Ftv Engine Control.Ecd System (W/ Dpf). Dtc P0488 Exhaust Gas Recirculation Throttle Position Control Range / Performance


INSPECTION PROCEDURE

NOTICE:
After replacing the ECM, the new ECM needs registration (Click here) and initialization (Click here).
HINT:
  1. Although the DTC titles say Exhaust Gas Recirculation Throttle Position Control Range / Performance, these DTCs relate to the throttle valve
  2. After warming up the engine, DTC P0488 and P213B can be stored when 1 second or more passes after quickly accelerating the engine from idling.
  3. 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, and other data from the time the malfunction occurred.
1.CHECK HARNESS AND CONNECTOR (THROTTLE CONTROL MOTOR POWER SOURCE)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.1Vd-Ftv Engine Control.Ecd System (W/ Dpf). Dtc P0488 Exhaust Gas Recirculation Throttle Position Control Range / Performance

  1. Disconnect the throttle control motor connector.

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

    Standard Voltage:
    for Bank 1
    Tester Connection
    		Switch Condition
    		Specified Condition
    C85-2 (VCR) - Body ground
    		Ignition switch ON
    		11 to 14 V
    for Bank 2
    Tester Connection
    		Switch Condition
    		Specified Condition
    C86-2 (VCR) - Body ground
    		Ignition switch ON
    		11 to 14 V


NG
Go to step 7
OK


2.CHECK HARNESS AND CONNECTOR (GROUND CIRCUIT)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.1Vd-Ftv Engine Control.Ecd System (W/ Dpf). Dtc P0488 Exhaust Gas Recirculation Throttle Position Control Range / Performance

  1. Disconnect the throttle control motor connector.

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

    Standard Resistance (Check for Open):
    for Bank 1
    Tester Connection
    		Condition
    		Specified Condition
    C85-3 (E2R) - Body ground
    		Always
    		Below 1 Ω
    for Bank 2
    Tester Connection
    		Condition
    		Specified Condition
    C86-3 (E2R) - Body ground
    		Always
    		Below 1 Ω


NG
Go to step 8
OK


3.CHECK HARNESS AND CONNECTOR (THROTTLE CONTROL MOTOR - ECM)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.1Vd-Ftv Engine Control.Ecd System (W/ Dpf). Dtc P0488 Exhaust Gas Recirculation Throttle Position Control Range / Performance

  1. Disconnect the throttle control motor connector.

  1. Disconnect the ECM connector.

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

    Standard Resistance (Check for Open):
    for Bank 1 (LHD)
    Tester Connection
    		Condition
    		Specified Condition
    C85-1 (VTAR) - C45-42 (LUSL)
    		Always
    		Below 1 Ω
    for Bank 2 (LHD)
    Tester Connection
    		Condition
    		Specified Condition
    C86-1 (VTAR) - C45-84 (LUS2)
    		Always
    		Below 1 Ω
    for Bank 1 (RHD)
    Tester Connection
    		Condition
    		Specified Condition
    C85-1 (VTAR) - C46-42 (LUSL)
    		Always
    		Below 1 Ω
    for Bank 2 (RHD)
    Tester Connection
    		Condition
    		Specified Condition
    C86-1 (VTAR) - C46-84 (LUS2)
    		Always
    		Below 1 Ω

    Standard Resistance (Check for Short):
    for Bank 1 (LHD)
    Tester Connection
    		Condition
    		Specified Condition
    C85-1 (VTAR) or C45-42 (LUSL) - Body ground
    		Always
    		10 kΩ or higher
    for Bank 2 (LHD)
    Tester Connection
    		Condition
    		Specified Condition
    C86-1 (VTAR) or C45-84 (LUS2) - Body ground
    		Always
    		10 kΩ or higher
    for Bank 1 (RHD)
    Tester Connection
    		Condition
    		Specified Condition
    C85-1 (VTAR) or C46-42 (LUSL) - Body ground
    		Always
    		10 kΩ or higher
    for Bank 2 (RHD)
    Tester Connection
    		Condition
    		Specified Condition
    C86-1 (VTAR) or C46-84 (LUS2) - Body ground
    		Always
    		10 kΩ or higher


NG
Go to step 8
OK


4.REPLACE DIESEL THROTTLE BODY ASSEMBLY (for Bank 1 or Bank 2)

  1. Replace the diesel throttle body assembly (for Bank 1 or Bank 2) (Click here).


NEXT


5.CHECK WHETHER DTC OUTPUT RECURS

  1. Clear DTCs (Click here).

  1. Connect the intelligent tester to the DLC3.

  1. Turn the ignition switch to ON and turn the tester on.

  1. Start the engine.

  1. Over a period of 10 seconds or more, slowly raise the engine speed to 3000 rpm and lower it.

  1. Enter the following menus: Powertrain / Engine / DTC.

  1. Read the DTCs.

    Result
    Result
    		Proceed to
    P0488 and/or P213B is output
    		A
    No DTC is output
    		B


B
Go to step 9
A


6.REPLACE ECM

  1. Replace the ECM (Click here).



NEXT
Go to step 9

7.REPAIR OR REPLACE HARNESS OR CONNECTOR (THROTTLE CONTROL MOTOR - BATTERY)


NEXT
Go to step 9

8.REPAIR OR REPLACE HARNESS OR CONNECTOR

NEXT


9.CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED

  1. Connect the intelligent tester to the DLC3.

  1. Clear the DTCs (Click here).

  1. Turn the ignition switch off.

  1. Start the engine.

  1. Over a period of 10 seconds or more, slowly raise the engine speed to 3000 rpm and lower it.

  1. Confirm that the DTC is not output again.

    HINT:
    Perform the following procedure using the tester to determine whether or not the DTC judgment has been carried out.

    1. Enter the following menus: Powertrain / Engine / Utility / All Readiness.

    2. Input DTC P0488 and/or P213B.

    3. Check that STATUS is NORMAL. If STATUS is INCOMPLETE or UNKNOWN, over a period of 10 seconds or more, slowly raise the engine speed to 3000 rpm again and then idle the engine for 5 minutes.


NEXT

END