OBD Guide
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B2641

Electric Compressor Main Voltage Maximum

B2641 is an OBD-II diagnostic trouble code meaning: Electric Compressor Main Voltage Maximum. Common causes: electric compressor malfunction, wiring harness damage. Estimated repair cost: $56–167.

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

Symptoms

  • Air conditioner doesn't work
  • Periodic shutdown of the air conditioner
  • Check engine light comes on

Causes

  • Electric compressor malfunction
  • Wiring harness damage
  • Problems with the generator
  • Compressor relay fault
  • Control unit software error

How to Fix

  1. Check the voltage in the compressor circuit
  2. Inspect the wiring harness for damage
  3. Check generator operation
  4. Test compressor relay
  5. Update the control unit firmware (if necessary)

Related codes

B2631B2632B2633

FAQ

What does the B2641 code mean?

B2641 is an OBD-II diagnostic trouble code that indicates: Electric Compressor Main Voltage Maximum

What causes a B2641 error code?

The most common causes of B2641 include: Electric compressor malfunction; Wiring harness damage; Problems with the generator; Compressor relay fault.

How do I fix a B2641 diagnostic trouble code?

To fix B2641: Check the voltage in the compressor circuit. Inspect the wiring harness for damage. Check generator operation. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B2641?

Limited driving only, diagnose soon

How much does it cost to fix B2641?

The estimated repair cost for B2641 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat