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- Check the lines between the exhaust differential pressure sensor and the catalytic converter assembly (DPF) (i.e, exhaust pressure hose and exhaust pressure pipe) for disconnection, damage, wrong connection or clogging.
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Q.
Are the check results normal?
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Repair or replace the exhaust pressure hose or exhaust pressure pipe.
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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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- Check power supply line for damage.
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Q.
Is the check result normal?
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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 the damaged harness wire.
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- Check earthing line for damage.
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Q.
Is the check result normal?
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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, re-check the trouble symptoms.
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Q.
Is the check result normal?
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