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Share ↓3574Severity: Warning
3574: Aftertreatment DEF dosing issue (repeat occurrence, check contamination/debris)
Quick Answer
Aftertreatment DEF dosing issue (repeat occurrence, check contamination/debris)
Code
3574
Severity
Warning
Applies to
Check OEM application
Can I drive?
Driving suitability is not established by this code alone.
Common Symptoms
- Aftertreatment warning persists after parts replacement
- Repeated DEF dosing related faults
Likely Causes
- DEF system contamination/debris
- Restriction/contaminated components
- Connector/wiring issues
Common Fixes
- Inspect/clean DEF tank and components per OEM procedure
- Check filters/screens
- Verify dosing unit operation
Full technical sections↓
What does 3574 mean?
Back to top ↑Aftertreatment DEF dosing issue (repeat occurrence, check contamination/debris)
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