OBD Guide
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U182D

Lost Communication With Hybrid/EV Powertrain Control Module 2 On Powertrain Expansion Communication Bus

U182D is an OBD-II diagnostic trouble code meaning: Lost Communication With Hybrid/EV Powertrain Control Module 2 On Powertrain Expansion Communication Bus. Common causes: open or short circuit in the can bus communication circuit, pcm2 power supply problems. Estimated repair cost: $167–556.

Severity
🔴 High
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$167–556 (est.)

Symptoms

  • Check Engine light comes on
  • Reduced engine power
  • Switching to emergency mode
  • Problems with switching hybrid system modes
  • Errors in the operation of the regenerative braking system

Causes

  • Open or short circuit in the CAN bus communication circuit
  • PCM2 power supply problems
  • Malfunction of the hybrid transmission control module itself
  • Corroded or damaged wiring connectors
  • Software errors in the control module

How to Fix

  1. Check the integrity of the CAN bus wiring harness
  2. Check the supply voltage on the PCM2 module
  3. Inspect connectors for corrosion or damage
  4. Scan all modules for additional errors
  5. If necessary, replace the hybrid powertrain control module
  6. Repair only from an authorized dealer

Related codes

U182EU182FU1830

FAQ

What does the U182D code mean?

U182D is an OBD-II diagnostic trouble code that indicates: Lost Communication With Hybrid/EV Powertrain Control Module 2 On Powertrain Expansion Communication Bus

What causes a U182D error code?

The most common causes of U182D include: Open or short circuit in the CAN bus communication circuit; PCM2 power supply problems; Malfunction of the hybrid transmission control module itself; Corroded or damaged wiring connectors.

How do I fix a U182D diagnostic trouble code?

To fix U182D: Check the integrity of the CAN bus wiring harness. Check the supply voltage on the PCM2 module. Inspect connectors for corrosion or damage. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with U182D?

Do not drive — repair immediately

How much does it cost to fix U182D?

The estimated repair cost for U182D is $167–556. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat