U3527

High Voltage System Interlock Circuit G Low

Severity

🔴 High

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$56–167 (est.)

Symptoms

Check Engine light comes on
Possible problems starting the hybrid system
Reducing power or shutting down the high voltage system
Warning messages appear on the dashboard

Causes

Broken or damaged wiring in the interlock circuit
Poor contact in high voltage system connectors
Malfunction of the high-voltage system blocking sensor
Problems with the high voltage system control module
Short circuit in the circuit

How to Fix

Check the integrity of the wiring in the blocking circuit
Inspect and clean the contacts in the system connectors
Check the functionality of the lock sensor
Scan the control module for additional errors
Repair only from an authorized dealer

Related codes

U3526 U3528 U3530