OBD Guide

B2998

A/C Compressor Driver

B2998 is an OBD-II diagnostic trouble code meaning: A/C Compressor Driver. Common causes: open or short circuit in wiring harness, faulty compressor driver. Estimated repair cost: $56–167.

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

Symptoms

  • Air conditioner doesn't work
  • Increased noise when turning on the air conditioner
  • The air conditioning indicator is flashing

Causes

  • Open or short circuit in wiring harness
  • Faulty compressor driver
  • Damaged air conditioning compressor
  • Problems with the control module

How to Fix

  1. Check the integrity of the wiring harness
  2. Check the voltage on the compressor driver
  3. Test the air conditioning compressor
  4. Replace faulty components

Related codes

FAQ

What does the B2998 code mean?

B2998 is an OBD-II diagnostic trouble code that indicates: A/C Compressor Driver

What causes a B2998 error code?

The most common causes of B2998 include: Open or short circuit in wiring harness; Faulty compressor driver; Damaged air conditioning compressor; Problems with the control module.

How do I fix a B2998 diagnostic trouble code?

To fix B2998: Check the integrity of the wiring harness. Check the voltage on the compressor driver. Test the air conditioning compressor. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B2998?

Yes, but get it checked soon

How much does it cost to fix B2998?

The estimated repair cost for B2998 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat