U3526

High Voltage System Interlock Circuit G Performance

Severity

🔴 High

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$56–167 (est.)

Symptoms

Check Engine light comes on
Reduced vehicle power
Problems starting the engine
Limitation of hybrid system operation
High voltage system fault warning

Causes

Open or short circuit in the interlock circuit
Lock sensor malfunction
Wiring harness damage
Problems with the high voltage system control module
Contact corrosion

How to Fix

Check the integrity of the locking circuit
Check the status of the lock sensor
Inspect the wiring harness for damage
Check connections and contacts
Scan the control module for errors
Repair only from an authorized dealer

Related codes

U3525 U3527 U3528