OBD Guide
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B243B

Right Front Seat Heating Switch

B243B is an OBD-II diagnostic trouble code meaning: Right Front Seat Heating Switch. Common causes: heating switch malfunction, broken or damaged wiring harness. Estimated repair cost: $33–167.

Severity
✅ Low
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$33–167 (est.)

Symptoms

  • The right front seat heating does not work
  • Heated seat indicator does not light up
  • Intermittent heating operation

Causes

  • Heating switch malfunction
  • Broken or damaged wiring harness
  • Short circuit in the circuit
  • Problems with the heating control module
  • Poor contact in connectors

How to Fix

  1. Visually inspect the heating switch for damage
  2. Checking the condition of the wiring harness under the seat
  3. Checking the contacts in the heating system connectors
  4. Switch Circuit Resistance Diagnosis
  5. If necessary, replace the switch or repair the wiring harness

Related codes

B243AB243CB2495

FAQ

What does the B243B code mean?

B243B is an OBD-II diagnostic trouble code that indicates: Right Front Seat Heating Switch

What causes a B243B error code?

The most common causes of B243B include: Heating switch malfunction; Broken or damaged wiring harness; Short circuit in the circuit; Problems with the heating control module.

How do I fix a B243B diagnostic trouble code?

To fix B243B: Visually inspect the heating switch for damage. Checking the condition of the wiring harness under the seat. Checking the contacts in the heating system connectors. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B243B?

Do not drive — repair immediately

How much does it cost to fix B243B?

The estimated repair cost for B243B is $33–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat