P0ADC

Hybrid/EV Battery Positive Contactor Control Circuit High

Severity

🔴 High

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$56–278 (est.)

Symptoms

Check engine light comes on
Reduced vehicle power
The car may go into emergency mode
Problems with charging a high-voltage battery
Possible error messages on the display

Causes

Open or short circuit in the contactor control circuit
Battery positive contactor fault
Problems with the Battery Management Module (BMS)
Corrosion or poor contact in connectors
High voltage relay malfunction

How to Fix

Check the integrity of the contactor control circuit
Inspect connectors and connections for corrosion
Check the functionality of the positive contactor
Test the battery management module
If necessary, replace faulty components

Related codes

P0ADB P0ADD P0A8F