OBD Guide
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U185E

Fuel Injector Control Module Lost Communication With Body Control Module

U185E is an OBD-II diagnostic trouble code meaning: Fuel Injector Control Module Lost Communication With Body Control Module. Common causes: broken or damaged can bus wires, poor contact in module connectors. Estimated repair cost: $17–89.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–89 (est.)

Symptoms

  • Check Engine light comes on
  • Deterioration in acceleration dynamics
  • Unstable engine idling
  • Increased fuel consumption

Causes

  • Broken or damaged CAN bus wires
  • Poor contact in module connectors
  • Faulty injector control module
  • Problems with power supply or grounding of modules
  • Software failure in one of the modules

How to Fix

  1. Check the integrity of the CAN bus wiring
  2. Inspect and clean connector contacts
  3. Check the supply voltage and grounding of the modules
  4. Scan other modules for errors
  5. Replace damaged components if necessary

Related codes

U185DU185FU1860

FAQ

What does the U185E code mean?

U185E is an OBD-II diagnostic trouble code that indicates: Fuel Injector Control Module Lost Communication With Body Control Module

What causes a U185E error code?

The most common causes of U185E include: Broken or damaged CAN bus wires; Poor contact in module connectors; Faulty injector control module; Problems with power supply or grounding of modules.

How do I fix a U185E diagnostic trouble code?

To fix U185E: Check the integrity of the CAN bus wiring. Inspect and clean connector contacts. Check the supply voltage and grounding of the modules. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with U185E?

Yes, but get it checked soon

How much does it cost to fix U185E?

The estimated repair cost for U185E is $17–89. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat