B2818
Headlamp Leveling Sensor Supply Circuit High
B2818 is an OBD-II diagnostic trouble code meaning: Headlamp Leveling Sensor Supply Circuit High. Common causes: short circuit in the sensor circuit, headlight level sensor malfunction. Estimated repair cost: $56–167.
Symptoms
- Incorrect operation of automatic headlight adjustment
- Flashing headlights
- Error message on the dashboard
Causes
- Short circuit in the sensor circuit
- Headlight level sensor malfunction
- Damage to wiring or connectors
- Problems with the headlight control unit
- Oxidation of contacts
How to Fix
- Check the integrity of the wiring and connectors in the sensor circuit
- Measure the voltage at the headlight level sensor
- Check sensor resistance
- If necessary, replace the headlight level sensor
- Check and, if necessary, replace the headlight control unit
Related codes
FAQ
What does the B2818 code mean?
B2818 is an OBD-II diagnostic trouble code that indicates: Headlamp Leveling Sensor Supply Circuit High
What causes a B2818 error code?
The most common causes of B2818 include: Short circuit in the sensor circuit; Headlight level sensor malfunction; Damage to wiring or connectors; Problems with the headlight control unit.
How do I fix a B2818 diagnostic trouble code?
To fix B2818: Check the integrity of the wiring and connectors in the sensor circuit. Measure the voltage at the headlight level sensor. Check sensor resistance. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with B2818?
Limited driving only, diagnose soon
How much does it cost to fix B2818?
The estimated repair cost for B2818 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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