OBD Guide
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B2817

Headlamp Leveling Sensor Supply Circuit Low

B2817 is an OBD-II diagnostic trouble code meaning: Headlamp Leveling Sensor Supply Circuit Low. Common causes: open or short circuit in wiring harness, malfunction of the headlight leveling sensor. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Incorrect headlight level adjustment
  • Flashing headlights
  • Error message on the instrument panel

Causes

  • Open or short circuit in wiring harness
  • Malfunction of the headlight leveling sensor
  • Power problems (blown fuse, poor contact)
  • Malfunction of the headlight control unit

How to Fix

  1. Check fuses and wiring harness integrity
  2. Check the voltage at the headlight leveling sensor
  3. Replace sensor if necessary
  4. Check the operation of the headlight control unit

Related codes

B2818B2819B2820

FAQ

What does the B2817 code mean?

B2817 is an OBD-II diagnostic trouble code that indicates: Headlamp Leveling Sensor Supply Circuit Low

What causes a B2817 error code?

The most common causes of B2817 include: Open or short circuit in wiring harness; Malfunction of the headlight leveling sensor; Power problems (blown fuse, poor contact); Malfunction of the headlight control unit.

How do I fix a B2817 diagnostic trouble code?

To fix B2817: Check fuses and wiring harness integrity. Check the voltage at the headlight leveling sensor. Replace sensor if necessary. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B2817?

Limited driving only, diagnose soon

How much does it cost to fix B2817?

The estimated repair cost for B2817 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat