OBD Guide
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P3016

Battery Block 6 Becomes Weak

P3016 is an OBD-II diagnostic trouble code meaning: Battery Block 6 Becomes Weak. Common causes: block 6 battery wear, poor battery contact. Estimated repair cost: $89–167.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$89–167 (est.)

Symptoms

  • Reduced vehicle power
  • Battery status warning on instrument panel
  • Problems starting the engine
  • Unstable operation of the hybrid system
  • Increased fuel consumption

Causes

  • Block 6 battery wear
  • Poor battery contact
  • Problems with the charging system
  • Battery management system malfunction
  • Short circuit in battery circuit

How to Fix

  1. Check battery voltage of unit 6
  2. Check battery contacts and terminals
  3. Diagnose the charging system
  4. Check Battery Management System
  5. If necessary, replace the battery of unit 6

Related codes

P3015P3017P3018

FAQ

What does the P3016 code mean?

P3016 is an OBD-II diagnostic trouble code that indicates: Battery Block 6 Becomes Weak

What causes a P3016 error code?

The most common causes of P3016 include: Block 6 battery wear; Poor battery contact; Problems with the charging system; Battery management system malfunction.

How do I fix a P3016 diagnostic trouble code?

To fix P3016: Check battery voltage of unit 6. Check battery contacts and terminals. Diagnose the charging system. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P3016?

Yes, but get it checked soon

How much does it cost to fix P3016?

The estimated repair cost for P3016 is $89–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat