Code
P0622
Charging
Défaut circuit d’excitation alternateur
Le circuit d’excitation de l’alternateur a un défaut.
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Most likely causes
- Alternateur défectueux
- Câblage
Symptoms you may notice
- Charging warning light
- Battery goes flat
Checks to run
- Test the field circuit
- Test alternator output
Tools you may need
Multimeter
Always diagnose before replacing. Codes share symptoms; confirm the cause with measurements before buying parts.