P0ADA

Hybrid/EV Battery Positive Contactor Control Circuit Range/Performance

Severity

🔴 High

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$56–278 (est.)

Symptoms

Check engine light comes on
The car goes into emergency mode
Reduced power or inability to start
Error message on display
Clicking or no sound when the contactor is turned on

Causes

Battery contactor fault
Control wiring harness problems
Corrosion or poor contact in connectors
Battery management module malfunction
Control circuit power problems

How to Fix

Check the condition of the contactor and its operation
Inspect the wiring harness and connectors for damage.
Check control circuit voltage
Test the battery management module
Replace faulty contactor if necessary

Related codes

P0ADB P0ADC P0ADD