U3528

High Voltage System Interlock Circuit G High

Severity

🔴 High

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$56–167 (est.)

Symptoms

Check Engine Light Is On
The car goes into emergency mode
Reduced power or inability to start
High voltage system fault warning

Causes

Open circuit in high voltage circuit
Poor contact in connectors
Interconnect sensor failure
Wiring damage

How to Fix

Check the continuity of the high voltage circuit
Inspect connectors and contacts for corrosion
Check interconnect sensors
Scan the system for additional errors
Repair only from an authorized dealer

Related codes

U3527 U3529 U3530