Land Cruiser URJ200 URJ202 GRJ200 VDJ200 - 1VD-FTV ENGINE CONTROL
CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P0299)
CHECK INTAKE AND EXHAUST SYSTEM
INSPECT TURBOCHARGER SUB-ASSEMBLY (for Bank 1 or Bank 2)
CHECK CONNECTION OF VACUUM HOSE
READ VALUE USING INTELLIGENT TESTER (MAP)
READ VALUE USING INTELLIGENT TESTER (ACTUAL THROTTLE POSITION)
READ VALUE USING INTELLIGENT TESTER (ACTUAL EGR VALVE POS.)
READ VALUE USING INTELLIGENT TESTER (INJECTION FEEDBACK VAL #1 TO #8)
CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED
DTC P0299 Turbocharger / Supercharger Underboost
DESCRIPTION
- HINT:
- Refer to DTC P0046 ().
- Refer to DTC P00AF ().
| DTC Detection Drive Pattern | DTC Detection Condition | Trouble Area |
| Accelerate vehicle with accelerator halfway open or more starting from a speed of 120 km/h (192 mph) or more for 2 minutes (make sure gear is fixed and does not change) | The pressure is 55 kPa below the Target Boost Pressure for 40 seconds at an engine speed of 2800 to 4400 rpm (2 trip detection logic). | Turbocharger sub-assembly Turbo motor driver Turbo motor driver power source Extremely low battery voltage (P0560 output simultaneously) Disconnected pipe between turbo and intake manifold Disconnected MAP sensor hose Throttle valve stuck closed EGR does not close Exhaust system or intake system modified (leading to increased pressure loss, etc.) Manifold absolute pressure sensor Injection system (reduction in fuel injection volume) ECM |
| DTC No. | Data List |
| P0299 | Target Booster Pressure MAP |
- HINT:
- If DTC P0299 is stored, the following symptoms may appear:
INSPECTION PROCEDURE
- HINT:
- 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.
- NOTICE:
- After replacing the ECM, the new ECM needs registration () and initialization ().
- HINT:
- Comparison of the Data List items MAP and Target Booster Pressure during acceleration under medium to high engine speeds can be used to determine the state of the problem.
| 1.CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P0299) |
Connect the intelligent tester to the DLC3.
Turn the ignition switch to ON and turn the tester on.
Enter the following menus: Powertrain / Engine / DTC.
Read the DTCs.
- Result:
Display (DTC Output) Proceed to P0299 is output A P0299 and other DTCs are output B
|
| ||||
| A | |
| 2.CHECK INTAKE AND EXHAUST SYSTEM |
Check the intake and exhaust system modifications.
- OK:
- No modifications.
|
| ||||
| OK | |
| 3.INSPECT TURBOCHARGER SUB-ASSEMBLY (for Bank 1 or Bank 2) |
Check the turbocharger sub-assembly (for Bank 1 or Bank 2) ().
- HINT:
- Check if the VN is stuck, if there are abnormal noises from the turbo (impeller is damaged), if there is turbo shaft rattle, and if the turbo shaft rotates smoothly.
|
| ||||
| OK | |
| 4.CHECK CONNECTION OF VACUUM HOSE |
Check the vacuum hoses of manifold absolute pressure sensor connections.
|
| ||||
| OK | |
| 5.READ VALUE USING INTELLIGENT TESTER (MAP) |
Connect the intelligent tester to the DLC3.
Turn the ignition switch to ON and turn the tester on.
Enter the following menus: Powertrain / Engine / Data List / MAP.
Read the value.
- Standard Value:
Condition Standard Value Idling 90 to 102 kPa 3000 rpm 100 to 150 kPa
|
| ||||
| OK | |
| 6.READ VALUE USING INTELLIGENT TESTER (ACTUAL THROTTLE POSITION) |
Connect the intelligent tester to the DLC3.
Turn the ignition switch to ON and turn the tester on.
Enter the following menus: Powertrain / Engine / Data List / Actual Throttle Position, Actual Throttle Position #2.
Read the value.
- Standard Value:
Condition Standard Value Ignition switch ON -5 to 5% Idling 0 to 90%
|
| ||||
| OK | |
| 7.READ VALUE USING INTELLIGENT TESTER (ACTUAL EGR VALVE POS.) |
- HINT:
- For vehicles without EGR valve, perform troubleshooting from the next step.
Connect the intelligent tester to the DLC3.
Turn the ignition switch to ON and turn the tester on.
Enter the following menus: Powertrain / Engine / Active Test / Control the EGR Step Position or Control the EGR Step Position #2 / Data List / Actual EGR Valve Pos. or Actual EGR Valve Pos. #2.
When changing the Active Test value from 0 to 100%, check that Actual EGR Valve Pos. or Actual EGR Valve Pos. #2 smoothly changes to the set opening angle.
- Standard Value:
- Value smoothly changes to within +/-10% of set opening angle.
- HINT:
Next, after the engine is warmed up, stop the engine and wait for 15 seconds. After that, start the engine again and idle it for 30 seconds. Then stop the engine and wait for 15 seconds. After starting the engine again, read the Data List values while idling.
- Standard Value:
Tester Display Standard Value EGR Close Learn Val. 3.5 to 4.5 V EGR Close Lrn. Val. #2 3.5 to 4.5 V EGR Close Lrn. Status ON
|
| ||||
| OK | |
| 8.READ VALUE USING INTELLIGENT TESTER (INJECTION FEEDBACK VAL #1 TO #8) |
Connect the intelligent tester to the DLC3.
Turn the ignition switch to ON and turn the tester on.
Start the engine and warm it up.
Enter the following menus: Powertrain / Engine / Data List / Injection Feedback Val #1 to #8.
Read the values.
- Standard Value:
Item Engine Speed* Reference Value Injection Feedback Val #1 to #8 Idling -3.0 to 3.0 mm3/st
- HINT:
- OK:
- Values are within the standard range.
|
| ||||
| OK | |
| 9.CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED |
Connect the intelligent tester to the DLC3.
Clear the DTCs ().
Turn the ignition switch off.
Start the engine and warm it up.
Accelerate the vehicle with the accelerator halfway open or more starting from a speed of 120 km/h (192 mph) or more for 2 minutes (make sure the gear is fixed and does not change).
Enter the following menus: Powertrain / Engine / DTC / Pending.
Read the DTC.
| Display (DTC Output) | Proceed to |
| No output | A |
| P0299 | B |
|
| ||||
| A | ||
| ||