OBD Guide

U352F

High Voltage System Interlock Circuit J Low

Severity
🔴 High
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–167 (est.)

Symptoms

  • Check Engine light comes on
  • Possible problems starting the hybrid/electric system
  • Reduced power or performance
  • The system may go into emergency mode
  • Errors in other related systems

Causes

  • Open or short circuit in the interlock circuit
  • Damaged or oxidized connector contacts
  • Lock sensor malfunction
  • Problems with the high voltage system control module
  • Wiring harness damage

How to Fix

  1. Check the integrity of the locking circuit
  2. Inspect all connectors and contacts for corrosion or damage.
  3. Check the resistance of the interlock circuit
  4. Test the lock sensor
  5. Check the operation of the high voltage system control module
  6. Repair only from an authorized dealer

Related codes

Error U352F by Vehicle Brand