OBD Guide
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B11DC

Rear Heated Seats Power Supply Circuit Open

B11DC is an OBD-II diagnostic trouble code meaning: Rear Heated Seats Power Supply Circuit Open. Common causes: break in the wiring harness, faulty heating relay. Estimated repair cost: $11–56.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$11–56 (est.)

Symptoms

  • Heated rear seats do not work
  • The heating indicator does not light up
  • Error on the dashboard

Causes

  • Break in the wiring harness
  • Faulty heating relay
  • Blown fuse
  • Broken seat heating elements
  • Problems with the heating control module

How to Fix

  1. Check the heating circuit fuse
  2. Check heating relay
  3. Inspect the wiring harness for breaks
  4. Check the integrity of the heating elements
  5. Check connections in connectors

FAQ

What does the B11DC code mean?

B11DC is an OBD-II diagnostic trouble code that indicates: Rear Heated Seats Power Supply Circuit Open

What causes a B11DC error code?

The most common causes of B11DC include: Break in the wiring harness; Faulty heating relay; Blown fuse; Broken seat heating elements.

How do I fix a B11DC diagnostic trouble code?

To fix B11DC: Check the heating circuit fuse. Check heating relay. Inspect the wiring harness for breaks. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B11DC?

Yes, but get it checked soon

How much does it cost to fix B11DC?

The estimated repair cost for B11DC is $11–56. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat