P2DB8

Battery Charging System B High Voltage Interlock Circuit Performance

Severity

🔴 High

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$17–89 (est.)

Symptoms

Check engine light comes on
Problems with charging a high-voltage battery
Reduced vehicle performance
Engine power limitation
Possible errors in other systems

Causes

Open or short circuit in the interlock circuit
Voltage sensor fault
Damaged or oxidized connectors
Problems with the control module
Software errors

How to Fix

Check the integrity of the wiring in the blocking circuit
Inspect and clean all connectors
Check the functionality of the voltage sensors
Test the control module
Update the software if necessary

Related codes

P2DB7 P2DB9 P0AA6