OBD Guide

U3525

High Voltage System Interlock Circuit G

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

Symptoms

  • Check Engine light comes on
  • Engine power limitation
  • Inability to start the high voltage system
  • Error message on display
  • Switching to emergency mode

Causes

  • Open or short circuit in the interlock circuit
  • Malfunction of the high-voltage system blocking sensor
  • Wiring harness damage
  • Problems with the high voltage system control module
  • Improper maintenance of high voltage components

How to Fix

  1. Check the integrity of the locking circuit
  2. Check the condition of the blocking sensors
  3. Inspect the wiring harness for damage
  4. Diagnose the control module
  5. Repair only from an authorized dealer

Related codes

Error U3525 by Vehicle Brand