OBD Guide
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B29A0

Normal Chart Port

B29A0 is an OBD-II diagnostic trouble code meaning: Normal Chart Port. Common causes: diagnostic port wiring harness damaged, oxidation or contamination of port contacts. Estimated repair cost: $11–56.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$11–56 (est.)

Symptoms

  • Problems connecting the diagnostic scanner
  • No connection with on-board computer
  • Check Engine Light Flashing

Causes

  • Diagnostic port wiring harness damaged
  • Oxidation or contamination of port contacts
  • Malfunction of the diagnostic port itself
  • Problems with the on-board computer

How to Fix

  1. Check the integrity of the diagnostic port wiring harness
  2. Clean the port contacts from oxidation and contamination
  3. Check the port connection to the on-board computer
  4. If necessary, replace the diagnostic port

Related codes

U0100U0121B29A1

FAQ

What does the B29A0 code mean?

B29A0 is an OBD-II diagnostic trouble code that indicates: Normal Chart Port

What causes a B29A0 error code?

The most common causes of B29A0 include: Diagnostic port wiring harness damaged; Oxidation or contamination of port contacts; Malfunction of the diagnostic port itself; Problems with the on-board computer.

How do I fix a B29A0 diagnostic trouble code?

To fix B29A0: Check the integrity of the diagnostic port wiring harness. Clean the port contacts from oxidation and contamination. Check the port connection to the on-board computer. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B29A0?

Limited driving only, diagnose soon

How much does it cost to fix B29A0?

The estimated repair cost for B29A0 is $11–56. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat