Detailed guide for SPN 5394 FMI 5
Back to top ↑Current low means the circuit is not complete. Prove harness health before replacing the valve.
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Share ↓SPN 5394 FMI 5Severity: Warning
SPN 5394 FMI 5: DEF doser valve current low / open circuit
Quick Answer
DEF doser valve current low / open circuit
Code
SPN 5394 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 stack into inducement
- Electrical fault present
Likely Causes
- Open circuit wiring
- Bad connector contact
- Valve coil issue
Common Fixes
- Check continuity and coil resistance
- Inspect connector pins for corrosion
- Repair wiring or replace valve if coil is open
Full technical sections↓
What does SPN 5394 FMI 5 mean?
Back to top ↑DEF doser valve current low / open circuit
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