OBD Guide
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B1982

Battery Voltage High

B1982 is an OBD-II diagnostic trouble code meaning: Battery Voltage High. Common causes: generator malfunction, problems with the voltage regulator. Estimated repair cost: $56–167.

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

Symptoms

  • Check Engine Light Is On
  • Interruptions in the operation of electrical equipment
  • Battery overheating
  • Failure of electronic components

Causes

  • Generator malfunction
  • Problems with the voltage regulator
  • Short circuit in charging circuit
  • Wiring harness damage
  • Battery fault

How to Fix

  1. Check the battery voltage with the engine running
  2. Diagnose the generator and voltage regulator
  3. Check the integrity of the wiring harness
  4. Replace faulty components

Related codes

P0562P0563

FAQ

What does the B1982 code mean?

B1982 is an OBD-II diagnostic trouble code that indicates: Battery Voltage High

What causes a B1982 error code?

The most common causes of B1982 include: Generator malfunction; Problems with the voltage regulator; Short circuit in charging circuit; Wiring harness damage.

How do I fix a B1982 diagnostic trouble code?

To fix B1982: Check the battery voltage with the engine running. Diagnose the generator and voltage regulator. Check the integrity of the wiring harness. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1982?

Limited driving only, diagnose soon

How much does it cost to fix B1982?

The estimated repair cost for B1982 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat