P2C93

Hybrid/EV Battery Contactor Control Supply Circuit Range/Performance

Severity

🚨 Critical

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$167–556 (est.)

Symptoms

Check Engine light comes on
The car goes into emergency mode
Reduced power or inability to start
Error message on the dashboard
High voltage system failure

Causes

High voltage battery contactor fault
Open or short circuit in control circuit
Wiring harness damage
Malfunction of the hybrid system control unit
Problems with 12V auxiliary battery

How to Fix

Check the condition of the 12V auxiliary battery
Diagnose the contactor control circuit
Check fuses and relays
Test the contactor operation
Check fault codes in the hybrid system control unit
Repair only from an authorized dealer

Related codes

P2C94 P2C95 P0AA1