OBD Guide
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B191A

Front Heated Seat Module

B191A is an OBD-II diagnostic trouble code meaning: Front Heated Seat Module. Common causes: heating module malfunction, open or short circuit in wiring harness. Estimated repair cost: $56–167.

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

Symptoms

  • No seat heating
  • Intermittent heating operation
  • Error indication on the dashboard

Causes

  • Heating module malfunction
  • Open or short circuit in wiring harness
  • Problems with temperature sensors
  • Poor contact in connectors

How to Fix

  1. Check the integrity of the wiring harness
  2. Check the connection of the heating module
  3. Test temperature sensors
  4. Replace the heating module if necessary

Related codes

B191BB191C

FAQ

What does the B191A code mean?

B191A is an OBD-II diagnostic trouble code that indicates: Front Heated Seat Module

What causes a B191A error code?

The most common causes of B191A include: Heating module malfunction; Open or short circuit in wiring harness; Problems with temperature sensors; Poor contact in connectors.

How do I fix a B191A diagnostic trouble code?

To fix B191A: Check the integrity of the wiring harness. Check the connection of the heating module. Test temperature sensors. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B191A?

Limited driving only, diagnose soon

How much does it cost to fix B191A?

The estimated repair cost for B191A is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat