OBD Guide

B298B

Mode Door Actuator Drive Circuit Shorted To Ground

B298B is an OBD-II diagnostic trouble code meaning: Mode Door Actuator Drive Circuit Shorted To Ground. Common causes: wiring harness damage, damper actuator malfunction. Estimated repair cost: $56–167.

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

Symptoms

  • Incorrect operation of the climate control system
  • Uncharacteristic noises from the damper area
  • No change in air flow direction

Causes

  • Wiring harness damage
  • Damper actuator malfunction
  • Short circuit in control circuit
  • Problems with the climate control unit

How to Fix

  1. Check the integrity of the wiring harness
  2. Check the resistance and functionality of the actuator
  3. Repair short circuit to ground
  4. If necessary, replace the actuator or control unit

Related codes

FAQ

What does the B298B code mean?

B298B is an OBD-II diagnostic trouble code that indicates: Mode Door Actuator Drive Circuit Shorted To Ground

What causes a B298B error code?

The most common causes of B298B include: Wiring harness damage; Damper actuator malfunction; Short circuit in control circuit; Problems with the climate control unit.

How do I fix a B298B diagnostic trouble code?

To fix B298B: Check the integrity of the wiring harness. Check the resistance and functionality of the actuator. Repair short circuit to ground. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B298B?

Limited driving only, diagnose soon

How much does it cost to fix B298B?

The estimated repair cost for B298B is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat