Land Cruiser URJ200 URJ202 GRJ200 VDJ200 - 1VD-FTV ENGINE CONTROL
READ VALUE USING GTS (MANIFOLD ABSOLUTE PRESSURE)
CHECK HARNESS AND CONNECTOR (MANIFOLD ABSOLUTE PRESSURE SENSOR - ECM)
CHECK ECM TERMINAL VOLTAGE (VC TERMINAL)
REPLACE MANIFOLD ABSOLUTE PRESSURE SENSOR
CHECK WHETHER DTC OUTPUT RECURS
REPAIR OR REPLACE HARNESS OR CONNECTOR
CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED
DTC P0107 Manifold Absolute Pressure / Barometric Pressure Circuit Low Input
DTC P0108 Manifold Absolute Pressure / Barometric Pressure Circuit High Input
DESCRIPTION
The manifold absolute pressure sensor detects the intake manifold pressure. The ECM determines the basic injection volume and injection advance timing based on the voltage output by the manifold absolute pressure sensor.
The manifold absolute pressure sensor monitors the absolute pressure inside the intake manifold (default is 0 kPa [0 mmHg, 0 in.Hg]). As a result, the ECM controls the air-fuel ratio so that it reaches the proper level under any driving conditions.
| DTC Detection Drive Pattern | DTC Detection Condition | Trouble Area |
| 2 seconds after engine is started, race engine for 1 second | After the engine is started, condition (a) continues for more than 0.5 seconds (1 trip detection logic): (a) Manifold absolute pressure sensor voltage is 0.1 V or less. | Open or short in manifold absolute pressure sensor circuit Manifold absolute pressure sensor ECM |
| DTC Detection Drive Pattern | DTC Detection Condition | Trouble Area |
| 2 seconds after engine is started, race engine for 1 second | After the engine is started, condition (a) continues for more than 0.5 seconds (1 trip detection logic): (a) Manifold absolute pressure sensor voltage is 4.8 V or higher. | Open or short in manifold absolute pressure sensor circuit Manifold absolute pressure sensor ECM |
| DTC No. | Data List |
| P0107 P0108 | MAP Atmosphere Pressure |
- HINT:
| Intake Manifold Pressure | Malfunction |
| Approximately 0 kPa | Open in VC circuit Short in PIM circuit |
| 250 kPa (1875 mmHg, 73.8 in.Hg) or higher | Open in PIM circuit Open in E circuit |
WIRING DIAGRAM
INSPECTION PROCEDURE
- NOTICE:
- 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, and other data from the time the malfunction occurred.
| 1.READ VALUE USING GTS (MANIFOLD ABSOLUTE PRESSURE) |
Connect the GTS to the DLC3.
Turn the engine switch on (IG) and turn the GTS on.
Enter the following menus: Engine and ECT / Data List / MAP.
Read the value.
- OK:
- Same as the actual atmospheric pressure.
- HINT:
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| 2.CHECK HARNESS AND CONNECTOR (MANIFOLD ABSOLUTE PRESSURE SENSOR - ECM) |
Disconnect the manifold absolute pressure sensor connector.
Disconnect the ECM connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
for LHD Tester Connection Condition Specified Condition C80-2 (PIM) - C45-67 (PIM) Always Below 1 Ω C80-3 (VC) - C45-66 (VCPM) Always Below 1 Ω C80-1 (E) - C45-92 (E2) Always Below 1 Ω C80-2 (PIM) or C45-67 (PIM) - Body ground Always 10 kΩ or higher C80-3 (VC) or C45-66 (VCPM) - Body ground Always 10 kΩ or higher
- Standard Resistance:
for RHD Tester Connection Condition Specified Condition C80-2 (PIM) - C46-67 (PIM) Always Below 1 Ω C80-3 (VC) - C46-66 (VCPM) Always Below 1 Ω C80-1 (E) - C46-92 (E2) Always Below 1 Ω C80-2 (PIM) or C46-67 (PIM) - Body ground Always 10 kΩ or higher C80-3 (VC) or C46-66 (VCPM) - Body ground Always 10 kΩ or higher
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| OK | |
| 3.CHECK ECM TERMINAL VOLTAGE (VC TERMINAL) |
Disconnect the manifold absolute pressure sensor connector.
Measure the voltage according to the value(s) in the table below.
- Standard Voltage:
Tester Connection Switch Condition Specified Condition C80-3 (VC) - C80-1 (E) Engine switch on (IG) 4.75 to 5.25 V
| *a | Front view of wire harness connector (to Absolute Pressure Sensor) |
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| OK | |
| 4.REPLACE MANIFOLD ABSOLUTE PRESSURE SENSOR |
Replace the manifold absolute pressure sensor ().
| NEXT | |
| 5.CHECK WHETHER DTC OUTPUT RECURS |
Connect the GTS to the DLC3.
Clear the DTCs ().
Turn the engine switch off for 30 seconds or more.
Turn the GTS off.
Start the engine.
After the engine is started for 2 seconds, race the engine for 1 second.
Turn the GTS on.
Confirm that the DTC is not output again.
Enter the following menus: Engine and ECT / Utility / All Readiness.
Input DTC P0107 or P0108.
Check the DTC judgment result.
| Result | Proceed to |
| ABNORMAL | A |
| NORMAL | B |
- HINT:
- If STATUS is INCOMPLETE or N/A, race the engine for 1 minute, and then idle the engine for 5 minutes.
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| A | |
| 6.REPLACE ECM |
Replace the ECM ().
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| 7.REPAIR OR REPLACE HARNESS OR CONNECTOR |
Repair or replace the harness or connector.
| NEXT | |
| 8.CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED |
Connect the GTS to the DLC3.
Clear the DTCs ().
Turn the engine switch off for 30 seconds or more.
Turn the GTS off.
Turn the engine switch on (IG) for 3 seconds and turn the GTS on.
After the engine is started for 2 seconds, race the engine for 1 second.
Confirm that the DTC is not output again.
- HINT:
- Perform the following procedure using the GTS to determine whether or not the DTC judgment has been carried out.
Enter the following menus: Engine and ECT / Utility / All Readiness.
Input DTC P0107 or P0108.
Check that STATUS is NORMAL. If STATUS is INCOMPLETE or N/A, race the engine for 1 minute, and then idle the engine for 5 minutes.
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