P2C89

Hybrid/EV Battery System Precharge Current Too High

Severity

🔴 High

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$167–556 (est.)

Symptoms

Check Engine light comes on
Hybrid system power reduction
The car may go into emergency mode
Possible problems with starting
Clicking sounds from the high voltage compartment

Causes

Precharge contactor fault
Increased resistance in the precharge circuit
Problems with the Battery Management Module (BMS)
Short circuit in high voltage system
High voltage battery degradation

How to Fix

Diagnostics of the precharge circuit with a multimeter
Checking the resistance of the precharge contactor
Scanning the BMS module for errors
Checking the integrity of high-voltage cables
Repair only from an authorized dealer

Related codes

P2C88 P0A80 P1E00