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Code

B1340

Body

Défaut logiciel module de carrosserie

Le module de carrosserie a un défaut logiciel.

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Most likely causes

BCM corrompu
Tension basse

Symptoms you may notice

Random electrical faults
Lights behave oddly

Checks to run

Check battery and charging
Reprogram or replace the BCM

Tools you may need

OBD-II scanner

Always diagnose before replacing. Codes share symptoms; confirm the cause with measurements before buying parts.

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