EXCESSIVE BLACK SMOKE [SKYACTIV-D]

id0103s5109400

Troubleshooting item

EXCESSIVE BLACK SMOKE

Description

•  Compared to previously, black smoke in the exhaust gas abnormally high.

Possible cause

•  PCM DTC is stored.

•  Diesel particulate filter (in catalytic converter) deficiency

System wiring diagram

•  Not applicable

Connector diagram

•  Not applicable

Troubleshooting item	EXCESSIVE BLACK SMOKE
Description	• Compared to previously, black smoke in the exhaust gas abnormally high.
Possible cause	• PCM DTC is stored. • Diesel particulate filter (in catalytic converter) deficiency
System wiring diagram	• Not applicable
Connector diagram	• Not applicable

Diagnostic Procedure

Step

Inspection

Results

Action

1

VERIFY PCM DTC

•  Retrieve PCM DTCs using the M-MDS.
(See DTC INSPECTION.)

•  Are any DTCs present?

Yes

Go to the applicable DTC inspection.

(See DTC TABLE [PCM (SKYACTIV-D)].)

No

Go to the next step.

2

INSPECT DPF (IN CATALYTIC CONVERTER) FOR MALFUNCTION DUE TO DEFICIENCY

•  Inspect the diesel particulate filter.
(See DIESEL PARTICULATE FILTER INSPECTION [SKYACTIV-D 1.8].)

•  Is the diesel particulate filter normal?

Yes

Go to the next step.

No

Diesel particulate filter deficiency in the catalytic converter can be considered.

Replace the catalytic converter, then go to the next step.

(See EXHAUST SYSTEM REMOVAL/INSTALLATION [SKYACTIV-D 1.8].)

Repair completion verification 1

VERIFY THAT VEHICLE IS REPAIRED

•  Install/connect the part removed/disconnected during the troubleshooting procedure.

•  Has the malfunction symptom been eliminated?

Yes

Complete the symptom troubleshooting. (Explain contents of repair to customer)

No

Refer to the controller area network (CAN) malfunction diagnosis flow to inspect for a CAN communication error.

(See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [(E)].)

•  If the CAN communication is normal, perform the diagnosis from Step 1.

―  If the malfunction recurs, go to the next step.

Repair completion verification 2

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?

Yes

Perform the PCM reprogramming and verify if the malfunction symptom was corrected.

•  If the malfunction recurs, replace the PCM.
(See PCM REMOVAL/INSTALLATION [SKYACTIV-D 1.8].)

No

Replace the PCM.

(See PCM REMOVAL/INSTALLATION [SKYACTIV-D 1.8].)

Step	Inspection	Results	Action
1	VERIFY PCM DTC • Retrieve PCM DTCs using the M-MDS. (See DTC INSPECTION.) • Are any DTCs present?	Yes	Go to the applicable DTC inspection. (See DTC TABLE [PCM (SKYACTIV-D)].)
1		No	Go to the next step.
2	INSPECT DPF (IN CATALYTIC CONVERTER) FOR MALFUNCTION DUE TO DEFICIENCY • Inspect the diesel particulate filter. (See DIESEL PARTICULATE FILTER INSPECTION [SKYACTIV-D 1.8].) • Is the diesel particulate filter normal?	Yes	Go to the next step.
2		No	Diesel particulate filter deficiency in the catalytic converter can be considered. Replace the catalytic converter, then go to the next step. (See EXHAUST SYSTEM REMOVAL/INSTALLATION [SKYACTIV-D 1.8].)
Repair completion verification 1	VERIFY THAT VEHICLE IS REPAIRED • Install/connect the part removed/disconnected during the troubleshooting procedure. • Has the malfunction symptom been eliminated?	Yes	Complete the symptom troubleshooting. (Explain contents of repair to customer)
Repair completion verification 1		No	Refer to the controller area network (CAN) malfunction diagnosis flow to inspect for a CAN communication error. (See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [(E)].) • If the CAN communication is normal, perform the diagnosis from Step 1. ― If the malfunction recurs, go to the next step.
Repair completion verification 2	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?	Yes	Perform the PCM reprogramming and verify if the malfunction symptom was corrected. • If the malfunction recurs, replace the PCM. (See PCM REMOVAL/INSTALLATION [SKYACTIV-D 1.8].)
Repair completion verification 2		No	Replace the PCM. (See PCM REMOVAL/INSTALLATION [SKYACTIV-D 1.8].)