MasterTuning Fault code dictionary (DTC)

B1800 — Lamp Turn Signal Front Output Circuit Short To Battery

Severity: Informational Can you drive? With caution: limp mode possible, have it checked soon Make: All makes (OBD-II standard)
MeaningLamp Turn Signal Front Output Circuit Short To Battery.
FamilyBody (B)

Frequently asked questions

What does code B1800 mean?

Lamp Turn Signal Front Output Circuit Short To Battery. Lamp Turn Signal Front Output Circuit Short To Battery.

Can I keep driving with code B1800 active?

With caution: limp mode possible, have it checked soon

How do you fix code B1800?

Diagnosis starts from reading the live ECU parameters: the code points to the fault area, not to the part to replace. A vehicle-electronics specialist can test the component and clear the code after the repair.

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