OBD Guide
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U1151

Lost Communications With Vehicle Communication Interface Module

U1151 is an OBD-II diagnostic trouble code meaning: Lost Communications With Vehicle Communication Interface Module. Common causes: broken or damaged wires in the communication circuit, communication interface module failure. Estimated repair cost: $33–167.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$33–167 (est.)

Symptoms

  • Check Engine light comes on
  • Infotainment system malfunctions
  • Incorrect operation of some vehicle systems
  • Possible problems with diagnostics via OBD-II

Causes

  • Broken or damaged wires in the communication circuit
  • Communication interface module failure
  • Module power problems
  • Corrosion of connectors
  • Software failure in the module

How to Fix

  1. Check the integrity of the wiring harness and connectors
  2. Check the power supply and ground of the module
  3. Scan all modules for associated error codes
  4. Reflash or replace the communication interface module
  5. Check the CAN bus for damage

Related codes

U0100U0121U0155

FAQ

What does the U1151 code mean?

U1151 is an OBD-II diagnostic trouble code that indicates: Lost Communications With Vehicle Communication Interface Module

What causes a U1151 error code?

The most common causes of U1151 include: Broken or damaged wires in the communication circuit; Communication interface module failure; Module power problems; Corrosion of connectors.

How do I fix a U1151 diagnostic trouble code?

To fix U1151: Check the integrity of the wiring harness and connectors. Check the power supply and ground of the module. Scan all modules for associated error codes. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with U1151?

Yes, but get it checked soon

How much does it cost to fix U1151?

The estimated repair cost for U1151 is $33–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat