U3545

High Voltage System Interlock Circuit P

Severity

🔴 High

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$56–167 (est.)

Symptoms

High voltage warning light comes on
The car does not switch to driving mode
Reduced power or complete loss of traction
Related system errors
Possible high voltage battery shutdown

Causes

Broken wire in the safety circuit
Damaged high voltage system connector
Safety sensor malfunction
Damage to the insulation of high voltage components
Problems with the high voltage system control unit

How to Fix

Check the integrity of all wires in the safety circuit
Inspect the high-voltage system connectors for damage
Check the functionality of the safety sensors
Scan for additional trouble codes
Repair only from an authorized dealer

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