OBD Guide

B390D

Frontview Camera Module

B390D is an OBD-II diagnostic trouble code meaning: Frontview Camera Module. Common causes: damage to the camera or mounts, open or shorted wiring harness. Estimated repair cost: $56–278.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–278 (est.)

Symptoms

  • Disabling driver assistance systems (LDW, AEB, ACC)
  • Error messages on the dashboard
  • Lane assist does not work correctly
  • No collision warnings

Causes

  • Damage to the camera or mounts
  • Open or shorted wiring harness
  • Oxidation of connector contacts
  • Module software failure
  • The lens is dirty or foggy

How to Fix

  1. Check the cleanliness of the camera lens (clean if necessary)
  2. Visually inspect the wiring harness and connectors for damage.
  3. Check the supply voltage and ground of the camera circuit
  4. Scan the camera module for additional errors
  5. Perform error reset and test drive
  6. If necessary, replace or calibrate the camera

Related codes

Error B390D by Vehicle Brand

FAQ

What does the B390D code mean?

B390D is an OBD-II diagnostic trouble code that indicates: Frontview Camera Module

What causes a B390D error code?

The most common causes of B390D include: Damage to the camera or mounts; Open or shorted wiring harness; Oxidation of connector contacts; Module software failure.

How do I fix a B390D diagnostic trouble code?

To fix B390D: Check the cleanliness of the camera lens (clean if necessary). Visually inspect the wiring harness and connectors for damage.. Check the supply voltage and ground of the camera circuit. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B390D?

Limited driving only, diagnose soon

How much does it cost to fix B390D?

The estimated repair cost for B390D is $56–278. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat