OBD Guide
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U2620

Battery Energy Control Module Lost Communication With Hybrid/EV Battery Interface Control Module 8

U2620 is an OBD-II diagnostic trouble code meaning: Battery Energy Control Module Lost Communication With Hybrid/EV Battery Interface Control Module 8. Common causes: open or short circuit in the communication circuit between modules, problems with connectors or contact corrosion. Estimated repair cost: $56–167.

Severity
🔴 High
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Check engine light comes on
  • The hybrid system can operate in emergency mode
  • Reduced vehicle power
  • Problems with charging a high-voltage battery
  • Possible errors in other hybrid drive systems

Causes

  • Open or short circuit in the communication circuit between modules
  • Problems with connectors or contact corrosion
  • Battery Energy Management Module Malfunction
  • Hybrid Battery Interface Module Malfunction
  • Problems with power supply or grounding of modules

How to Fix

  1. Check the integrity of the wiring harness between the modules
  2. Diagnose the condition of connectors and contacts
  3. Check power and grounding of both modules
  4. Scan other related modules for errors
  5. If necessary, replace the faulty module

Related codes

U2610U2615U2600

FAQ

What does the U2620 code mean?

U2620 is an OBD-II diagnostic trouble code that indicates: Battery Energy Control Module Lost Communication With Hybrid/EV Battery Interface Control Module 8

What causes a U2620 error code?

The most common causes of U2620 include: Open or short circuit in the communication circuit between modules; Problems with connectors or contact corrosion; Battery Energy Management Module Malfunction; Hybrid Battery Interface Module Malfunction.

How do I fix a U2620 diagnostic trouble code?

To fix U2620: Check the integrity of the wiring harness between the modules. Diagnose the condition of connectors and contacts. Check power and grounding of both modules. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with U2620?

Limited driving only, diagnose soon

How much does it cost to fix U2620?

The estimated repair cost for U2620 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat