OBD Guide

U0097

Vehicle Communication Bus H (-) Open

U0097 is an OBD-II diagnostic trouble code meaning: Vehicle Communication Bus H (-) Open. Common causes: broken wire in the harness, poor contact in the connector. Estimated repair cost: $6–33.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$6–33 (est.)

Symptoms

  • Loss of communication between modules
  • Inoperative car systems
  • Check Engine Light Illuminates
  • Problems with diagnostics via OBD-II

Causes

  • Broken wire in the harness
  • Poor contact in the connector
  • Contact corrosion
  • Communication module malfunction

How to Fix

  1. Check the integrity of the wiring harness
  2. Check the condition of connectors and contacts
  3. Check the operation of related modules
  4. Replace damaged wires or connectors

Related codes

Error U0097 by Vehicle Brand

FAQ

What does the U0097 code mean?

U0097 is an OBD-II diagnostic trouble code that indicates: Vehicle Communication Bus H (-) Open

What causes a U0097 error code?

The most common causes of U0097 include: Broken wire in the harness; Poor contact in the connector; Contact corrosion; Communication module malfunction.

How do I fix a U0097 diagnostic trouble code?

To fix U0097: Check the integrity of the wiring harness. Check the condition of connectors and contacts. Check the operation of related modules. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with U0097?

Yes, but get it checked soon

How much does it cost to fix U0097?

The estimated repair cost for U0097 is $6–33. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat