SULPHURIC ODOR [SKYACTIV-D]

id0103s5113000

Troubleshooting item

SULPHURIC ODOR
Description
•  There is a sulphuric odor from the cabin interior/exterior.
Possible cause
Note
•  If the catalytic converter has been degraded by sulfur, a strong sulfuric smell may occur during sulfur removal control.
•  PCM DTC is stored.
•  Catalytic converter degradation
•  Inferior fuel used (sulfur content is high)
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.
•  Are any DTCs present?
Yes
Go to the applicable DTC inspection.
(See DTC TABLE [PCM (SKYACTIV-D)].)
No
Go to the next step.
2
VERIFY IF MALFUNCTION IS CAUSED BY CATALYTIC CONVERTER ERROR
•  Start the engine.
Note
•  Match the engine coolant temperature in the recorded FREEZE FRAME DATA/snapshot data, the vehicle speed, and engine speed values to the best extent possible while driving the vehicle.
•  Drive the vehicle for 10 min under the driving conditions stored in the FREEZE FRAME DATA/snapshot data.
•  Has DTC P2000:00 been recorded?
Yes
Go to the applicable DTC inspection.
(See DTC TABLE [PCM (SKYACTIV-D)].)
No
Explain to the customer that it there is a high possibility that the temporary strong sulfur smell while driving the vehicle was caused by a large amount of sulfur generated and catalytic converter degraded.
Go to the next step.
3
INSPECT FOR MALFUNCTION DUE TO POOR FUEL
•  Replace the fuel.
•  Does the symptom disappear?
Yes
Advise the customer as to the change in the fuel used.
No
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.
No
Replace the PCM.
(See PCM REMOVAL/INSTALLATION [SKYACTIV-D 1.8].)