EXCESSIVE BLACK SMOKE [SKYACTIV-D]
id0103s5109400
Troubleshooting item |
EXCESSIVE BLACK SMOKE |
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Description
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• Compared to previously, black smoke in the exhaust gas abnormally high.
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Possible cause
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• PCM DTC is stored.
• Diesel particulate filter (in catalytic converter) deficiency
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System wiring diagram
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• Not applicable
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Connector diagram
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• Not applicable
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Diagnostic Procedure
Step |
Inspection |
Results |
Action |
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1
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VERIFY PCM DTC
• Retrieve PCM DTCs using the M-MDS.
(See DTC INSPECTION.)
• Are any DTCs present?
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Yes
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Go to the applicable DTC inspection.
(See DTC TABLE [PCM (SKYACTIV-D)].)
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No
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Go to the next step.
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2
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INSPECT DPF (IN CATALYTIC CONVERTER) FOR MALFUNCTION DUE TO DEFICIENCY
• Inspect the diesel particulate filter.
• Is the diesel particulate filter normal?
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Yes
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Go to the next step.
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No
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Diesel particulate filter deficiency in the catalytic converter can be considered.
Replace the catalytic converter, then go to the next step.
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Repair completion verification 1
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VERIFY THAT VEHICLE IS REPAIRED
• Install/connect the part removed/disconnected during the troubleshooting procedure.
• Has the malfunction symptom been eliminated?
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Yes
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Complete the symptom troubleshooting. (Explain contents of repair to customer)
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No
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Refer to the controller area network (CAN) malfunction diagnosis flow to inspect for a CAN communication error.
• If the CAN communication is normal, perform the diagnosis from Step 1.
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Repair completion verification 2
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VERIFY IF MALFUNCTION IS CAUSED BY NOT PERFORMING PCM REPROGRAMMING
• Verify repair information and verify that there is a new calibration in the PCM.
• Is there a new calibration in the PCM?
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Yes
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Perform the PCM reprogramming and verify if the malfunction symptom was corrected.
• If the malfunction recurs, replace the PCM.
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No
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Replace the PCM.
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