Suzuki Vitara (LY) 2016-2017 · Service Manual D16AA · Diagnostic Information and Procedures

DTC P226D

Precautions: General safety (00)

DTC Detecting Condition and Trouble Area
DTC detecting condition Trouble area
P226D: Particulate Filter Deteriorated / Missing Substrate Bank 1
DPF® regeneration performance considerably decreases.
(3 D/C detection logic)
•DPF® differential pressure sensor and/or its circuit
•DPF® differential pressure sensor pipe and/or hose
•DPF®
•ECM
Circuit Diagram
img
[A]: ECM connector (View: [a]) 3. Fuel injector No.2 6. DPF® differential pressure sensor
1. ECM 4. Fuel injector No.3    
2. Fuel injector No.1 5. Fuel injector No.4    
DTC Troubleshooting
Step Action Yes No
1
Was “Engine and Emission Control System Check” performed?
Go to Step 2.
2
Exhaust system check
1)Check exhaust system for obstructions, damage, leakage and breaks. icon 
Is check result OK?
Go to Step 3.
Repair or replace defective part(s).
3
DPF® differential pressure sensor operation check
1)Check DPF® differential pressure sensor operation. icon 
Is check result OK?
Go to Step 4.
Repair or replace defective part(s).
4
DPF® replacement
1)Replace DPF®. icon 
2)Clear DTC. icon 
3)Set ignition “OFF”.
4)Check DTC. icon 
Is DTC P226D still detected?
Replace ECM and recheck DTC. icon 
End.