OBD Guide

B10A7

Left Blend Door 1 Travel Too Large

B10A7 is an OBD-II diagnostic trouble code meaning: Left Blend Door 1 Travel Too Large. Common causes: mechanical jamming of the damper, damper actuator malfunction. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Uneven distribution of air temperature in the cabin
  • Noises during climate control operation
  • Inability to set desired temperature

Causes

  • Mechanical jamming of the damper
  • Damper actuator malfunction
  • Problems in the wiring harness
  • Malfunction of the climate control control unit

How to Fix

  1. Check the mechanical condition of the damper
  2. Check the operation of the damper drive
  3. Check the integrity of the wiring harness
  4. If necessary, replace faulty components

Related codes

FAQ

What does the B10A7 code mean?

B10A7 is an OBD-II diagnostic trouble code that indicates: Left Blend Door 1 Travel Too Large

What causes a B10A7 error code?

The most common causes of B10A7 include: Mechanical jamming of the damper; Damper actuator malfunction; Problems in the wiring harness; Malfunction of the climate control control unit.

How do I fix a B10A7 diagnostic trouble code?

To fix B10A7: Check the mechanical condition of the damper. Check the operation of the damper drive. Check the integrity of the wiring harness. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B10A7?

Yes, but get it checked soon

How much does it cost to fix B10A7?

The estimated repair cost for B10A7 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat