B1803 — Lamp Turn Signal Rear Output Circuit Open
Severity: Informational
Can you drive? With caution: limp mode possible, have it checked soon
Make: All makes (OBD-II standard)
| Meaning | Lamp Turn Signal Rear Output Circuit Open. |
| Family | Body (B) |
Frequently asked questions
What does code B1803 mean?
Lamp Turn Signal Rear Output Circuit Open. Lamp Turn Signal Rear Output Circuit Open.
Can I keep driving with code B1803 active?
With caution: limp mode possible, have it checked soon
How do you fix code B1803?
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
Related codes
- B1800 — Lamp Turn Signal Front Output Circuit Short To Battery
- B1801 — Lamp Turn Signal Front Output Circuit Short To Ground
- B1802 — Lamp Turn Signal Rear Output Circuit Failure
- B1804 — Lamp Turn Signal Rear Output Circuit Short To Battery
- B1805 — Lamp Turn Signal Rear Output Circuit Short To Ground
- B1806 — Lamp Tail Output Circuit Failure
- B1807 — Lamp Tail Output Circuit Open
- B1808 — Lamp Tail Output Circuit Short To Battery
- B1809 — Lamp Tail Output Circuit Short To Ground
- B1810 — Lamp Backup Switch Input Circuit Failure
- B1811 — Lamp Backup Switch Input Circuit Open
- B1812 — Lamp Backup Switch Input Circuit Short To Battery