OBD Guide
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B2303

Seat Headrest Feedback Potentiometer Circuit Open

B2303 is an OBD-II diagnostic trouble code meaning: Seat Headrest Feedback Potentiometer Circuit Open. Common causes: broken wires in the harness, oxidation of connector contacts. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$56–167 (est.)

Symptoms

  • SRS malfunction lamp is on
  • The headrest may not lock in position
  • The passive safety system may go into emergency mode

Causes

  • Broken wires in the harness
  • Oxidation of connector contacts
  • Headrest potentiometer malfunction
  • Damage to the chain due to tampering (for example, when installing a non-standard seat)

How to Fix

  1. Visually inspect the wiring harness and connectors for damage
  2. Checking continuity with a multimeter
  3. Cleaning connector contacts
  4. Replacing the potentiometer if necessary
  5. Resetting the error by the scanner after repair

Related codes

B2301B2302

FAQ

What does the B2303 code mean?

B2303 is an OBD-II diagnostic trouble code that indicates: Seat Headrest Feedback Potentiometer Circuit Open

What causes a B2303 error code?

The most common causes of B2303 include: Broken wires in the harness; Oxidation of connector contacts; Headrest potentiometer malfunction; Damage to the chain due to tampering (for example, when installing a non-standard seat).

How do I fix a B2303 diagnostic trouble code?

To fix B2303: Visually inspect the wiring harness and connectors for damage. Checking continuity with a multimeter. Cleaning connector contacts. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B2303?

Do not drive — repair immediately

How much does it cost to fix B2303?

The estimated repair cost for B2303 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat