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- Data list reference table (Refer to ).
- Item 8: Manifold absolute pressure sensor
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Q.
Is the check result normal?
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Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunctions ).
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- Disconnect connector, and measure at harness side.
- Ignition switch: "ON"
- Voltage between terminal engine-ECU MAP5 line and body earth.
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Q.
Is the check result normal?
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- Check power supply line for open/short circuit.
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Q.
Is the check result normal?
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Repair or replace the connector, or repair the damaged harness wire.
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- Data list reference table (Refer to ).
- Item 8: Manifold absolute pressure sensor
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Q.
Is the check result normal?
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Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunctions ).
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- Check power supply line for damage.
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Q.
Is the check result normal?
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Repair or replace the connector, or repair the damaged harness wire.
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- Use special tool test harness (MB991709) to connect connector, and measure at pick-up harness.
- Ignition switch: "ON"
- Voltage between terminal engine-ECU MAP line and body earth.
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Altitude 0 m: 3.8 - 4.2 V Altitude 600 m: 3.5 - 3.9 V Altitude 1,200 m: 3.3 - 3.7 V Altitude 1,800 m: 3.0 - 3.4 V
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Q.
Is the check result normal?
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- Check output line for short circuit.
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Q.
Is the check result normal?
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Replace the manifold absolute pressure sensor.
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Repair the damaged harness wire.
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- Disconnect engine-ECU harness, and connect special tool power plant ECU check harness (MB992110) to measure at connector for inspection.
- Ignition switch: "ON"
- Voltage between terminal MAP and body earth.
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Altitude 0 m: 3.8 - 4.2 V Altitude 600 m: 3.5 - 3.9 V Altitude 1,200 m: 3.3 - 3.7 V Altitude 1,800 m: 3.0 - 3.4 V
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Q.
Is the check result normal?
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Repair or replace the connector, or check and repair harness between manifold absolute pressure sensor connector terminal and engine-ECU connector terminal MAP.
- Check output line for open circuit and damage.
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