Detailed guide for SPN 4363 FMI 5
Back to top ↑Current low is an electrical problem until proven otherwise.\n\nCheck the connector carefully before blaming the valve.
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Share ↓SPN 4363 FMI 5Severity: Warning
SPN 4363 FMI 5: SCR dosing valve current low / open circuit
Quick Answer
SCR dosing valve current low / open circuit
Code
SPN 4363 FMI 5
Severity
Warning
Applies to
Check OEM application
Can I drive?
Driving suitability is not established by this code alone.
Common Symptoms
- DEF dosing fault
- May escalate to inducement
- Electrical fault present
Likely Causes
- Open circuit wiring
- Connector corrosion
- Valve coil open
Common Fixes
- Check coil resistance and continuity
- Inspect pins for corrosion and spread terminals
- Repair wiring then replace valve if needed
Full technical sections↓
What does SPN 4363 FMI 5 mean?
Back to top ↑SCR dosing valve current low / open circuit
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