MasterTuning Fault code dictionary (DTC)

B1813 — Lamp Backup Switch Input Circuit Short To Ground

Severity: Informational Can you drive? With caution: limp mode possible, have it checked soon Make: All makes (OBD-II standard)
MeaningLamp Backup Switch Input Circuit Short To Ground.
FamilyBody (B)

Frequently asked questions

What does code B1813 mean?

Lamp Backup Switch Input Circuit Short To Ground. Lamp Backup Switch Input Circuit Short To Ground.

Can I keep driving with code B1813 active?

With caution: limp mode possible, have it checked soon

How do you fix code B1813?

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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Where to get it fixed

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