OBD Guide

U0594

Invalid Data Received From Hybrid/EV Powertrain Control Module

Severity
🔴 High
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–278 (est.)

Symptoms

  • Check Engine light comes on
  • Reduced engine power
  • Problems with switching hybrid system modes
  • Unstable transmission operation
  • Errors in other vehicle systems

Causes

  • Problems with the CAN bus
  • Malfunction of the hybrid system control module
  • Wiring harness damage
  • Bad contacts in connectors
  • Software errors in the control module

How to Fix

  1. Check connections and wiring integrity
  2. Scan all modules for errors
  3. Check the voltage and resistance in the CAN bus
  4. Update module software
  5. If necessary, replace the hybrid system control module

Related codes

Error U0594 by Vehicle Brand