OBD Guide

U1500

Local Interconnect Network Bus Failure

U1500 is an OBD-II diagnostic trouble code meaning: Local Interconnect Network Bus Failure. Common causes: open or short circuit in lin circuit, fault in one of the connected modules. Estimated repair cost: $6–56.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$6–56 (est.)

Symptoms

  • Non-functioning individual electronic components (window regulators, mirrors, etc.)
  • Malfunction indicator light comes on
  • Intermittent operation of connected devices
  • Errors in other related systems

Causes

  • Open or short circuit in LIN circuit
  • Fault in one of the connected modules
  • Module power problems
  • Corrosion or poor contact in connectors
  • Wiring harness damage

How to Fix

  1. Visual inspection of the wiring harness and connectors
  2. Checking LIN Circuit Continuity
  3. Diagnostics of connected modules one by one
  4. Checking power and ground on modules
  5. Replacing damaged components or repairing wiring

Related codes

FAQ

What does the U1500 code mean?

U1500 is an OBD-II diagnostic trouble code that indicates: Local Interconnect Network Bus Failure

What causes a U1500 error code?

The most common causes of U1500 include: Open or short circuit in LIN circuit; Fault in one of the connected modules; Module power problems; Corrosion or poor contact in connectors.

How do I fix a U1500 diagnostic trouble code?

To fix U1500: Visual inspection of the wiring harness and connectors. Checking LIN Circuit Continuity. Diagnostics of connected modules one by one. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with U1500?

Yes, but get it checked soon

How much does it cost to fix U1500?

The estimated repair cost for U1500 is $6–56. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat