OBD Guide
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B2634

Front Air Mix Door Motor Passenger Side

B2634 is an OBD-II diagnostic trouble code meaning: Front Air Mix Door Motor Passenger Side. Common causes: jamming of the damper mechanism, open or short circuit in wiring harness. Estimated repair cost: $56–167.

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

Symptoms

  • Inability to adjust temperature on passenger side
  • Constant flow of hot or cold air on one side
  • Clicking or grinding noises from the damper area

Causes

  • Jamming of the damper mechanism
  • Open or short circuit in wiring harness
  • Damper motor malfunction
  • Problems with the climate control unit

How to Fix

  1. Check the damper mechanism for jamming
  2. Check the integrity and connections of the wiring harness
  3. Check the resistance and operation of the damper motor
  4. If necessary, replace the damper motor
  5. Check and update the control unit software

Related codes

B2633B2635B2628

FAQ

What does the B2634 code mean?

B2634 is an OBD-II diagnostic trouble code that indicates: Front Air Mix Door Motor Passenger Side

What causes a B2634 error code?

The most common causes of B2634 include: Jamming of the damper mechanism; Open or short circuit in wiring harness; Damper motor malfunction; Problems with the climate control unit.

How do I fix a B2634 diagnostic trouble code?

To fix B2634: Check the damper mechanism for jamming. Check the integrity and connections of the wiring harness. Check the resistance and operation of the damper motor. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B2634?

Yes, but get it checked soon

How much does it cost to fix B2634?

The estimated repair cost for B2634 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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