U3547

High Voltage System Interlock Circuit P Low

Severity

🔴 High

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$17–89 (est.)

Symptoms

Check Engine light comes on
Reduced engine power
The car goes into emergency mode
Inability to start the high voltage system
Warning messages appear on the instrument panel

Causes

Broken wires in the locking circuit
Poor contact in connectors
Lock sensor malfunction
Wiring harness damage
Problems with the high voltage system control module

How to Fix

Check the integrity of the interlock circuit wires
Inspect and clean the contacts in the connectors
Check the operation of the lock sensor
Scan the control module for errors
Repair only from an authorized dealer

Related codes

U3546 U3548 U3550