OBD Guide
ENFRDEESPT

B2643

Electric Compressor Output Line Short

B2643 is an OBD-II diagnostic trouble code meaning: Electric Compressor Output Line Short. Common causes: wiring harness damage, short circuit in compressor solenoid. Estimated repair cost: $56–278.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–278 (est.)

Symptoms

  • Air conditioner doesn't work
  • The compressor does not turn on
  • Hot air from deflectors
  • Check Engine Light Is On

Causes

  • Wiring harness damage
  • Short circuit in compressor solenoid
  • Electric compressor malfunction
  • Damage to the control module
  • Oxidation or corrosion of contacts

How to Fix

  1. Visually inspect the wiring harness for damage
  2. Checking compressor circuit resistance
  3. Compressor Solenoid Diagnostics
  4. Checking the control module
  5. Replacing damaged components

Related codes

B2644B2645P0532

FAQ

What does the B2643 code mean?

B2643 is an OBD-II diagnostic trouble code that indicates: Electric Compressor Output Line Short

What causes a B2643 error code?

The most common causes of B2643 include: Wiring harness damage; Short circuit in compressor solenoid; Electric compressor malfunction; Damage to the control module.

How do I fix a B2643 diagnostic trouble code?

To fix B2643: Visually inspect the wiring harness for damage. Checking compressor circuit resistance. Compressor Solenoid Diagnostics. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B2643?

Limited driving only, diagnose soon

How much does it cost to fix B2643?

The estimated repair cost for B2643 is $56–278. Actual cost depends on your vehicle, location, and labor rates.

FRDEESPT

See also: Russian version · NationStat