P3100

High voltage powertrain control module failure

Severity

🚨 Critical

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$167–889 (est.)

Symptoms

Check Engine Light Is On
Power Loss
The car goes into emergency mode
Inability to start the engine
Reduced performance of the hybrid system

Causes

HPCM internal fault
Module power problems
Damage to high voltage wiring
Short circuit in the circuit
Module software error

How to Fix

Check power supply and grounding of the module
Inspect high-voltage wiring for damage
Check error codes in other modules
Flash or replace HPCM
Repair only from an authorized dealer

Related codes

P3101 P3102 P3103

Error P3100 by Vehicle Brand