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- Refer to Data List Reference Table
.
- Item 2: Engine revolution
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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 SGT line and body earth.
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Q.
Is the check result normal?
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- Disconnect engine-ECU harness, and connect special tool power plant ECU check harness (MB992291) to measure at connector for inspection.
- Disconnect crank angle sensor connector.
- Ignition switch: ON
- Voltage between terminal SGT and body earth.
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Q.
Is the check result normal?
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![](../../../buttons/03btn001.png)
Repair or replace the connector, or check and repair harness between crank angle sensor connector terminal and engine-ECU connector terminal SGT.
- Check output line for open circuit.
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- Check output line for 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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- Refer to Data List Reference Table
.
- Item 2: Engine revolution
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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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- Use special tool test harness (MB991709) to connect connector, and measure at pick-up harness.
- Ignition switch: ON
- Voltage between terminal engine-ECU SGTB 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 and 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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- Disconnect connector, and measure at harness side.
- Resistance between terminal engine-ECU SGTG line and body earth.
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OK: Continuity (2 Ω or less)
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Q.
Is the check result normal?
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- Check earthing line for open circuit and 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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- Check output 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.
- Engine: Idling
- Transmission: Neutral
- Voltage between terminal engine-ECU SGT line and body earth.
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OK: Waveforms should be displayed on Inspection procedure using an oscilloscope (Refer to ), its maximum value should be 4.8 V or more, and its minimum valve should be 0.6 V or less with no noise in waveform.
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Q.
Is the check result normal?
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Q.
Is the check result normal?
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- After replacing the crank angle sensor, reconfirm whether the diagnosis code is set.
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Q.
Is the diagnosis code set?
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- After replacing the crank angle sensor, reconfirm whether the diagnosis code is set.
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Q.
Is the diagnosis code set?
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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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