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- Refer to Data List Reference Table
.
- Item 120: Exhaust differential 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 DDP5 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.
- Ignition switch: ON
- Voltage between terminal DDP5 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 exhaust differential pressure sensor connector terminal and engine-ECU connector terminal DDP5.
- Check power supply line for open circuit.
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- Check power supply 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 120: Exhaust differential pressure sensor
|
|
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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- Check output 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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- After replacing the exhaust differential pressure sensor, carry out the forcible DPF regeneration. (Refer to GROUP 17 - Emission Control <DIESEL> - Diesel Particulate Filter (DPF) System - Forcible DPF Regeneration
). After carrying out the forcible DPF regeneration, reconfirm diagnosis code.
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Q.
Is the diagnosis code set?
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