OBD Guide
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B2820

Quick Charger

B2820 is an OBD-II diagnostic trouble code meaning: Quick Charger. Common causes: charger fault, wiring harness damage. Estimated repair cost: $111–333.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$111–333 (est.)

Symptoms

  • Slow battery charging
  • No charging when connected to fast charging
  • The malfunction indicator on the dashboard lights up

Causes

  • Charger fault
  • Wiring harness damage
  • Problems with the control unit software
  • Malfunction of voltage or current sensors

How to Fix

  1. Check connections and integrity of wiring harness
  2. Test the charger on another car
  3. Update control unit software
  4. Replace faulty components

Related codes

B2810B2821P0A80

FAQ

What does the B2820 code mean?

B2820 is an OBD-II diagnostic trouble code that indicates: Quick Charger

What causes a B2820 error code?

The most common causes of B2820 include: Charger fault; Wiring harness damage; Problems with the control unit software; Malfunction of voltage or current sensors.

How do I fix a B2820 diagnostic trouble code?

To fix B2820: Check connections and integrity of wiring harness. Test the charger on another car. Update control unit software. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B2820?

Limited driving only, diagnose soon

How much does it cost to fix B2820?

The estimated repair cost for B2820 is $111–333. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat