P2BD1

Battery Charging System Negative Contactor B Control Circuit High

Severity

🔴 High

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Check Engine light comes on
Problems with charging a high-voltage battery
Hybrid system power reduction
Errors in the high voltage system
The car may go into emergency mode

Causes

Open circuit in the contactor control circuit
Short circuit to positive in the control circuit
Charging system control module malfunction
Relay or fuse problems
Defect of the contactor itself

How to Fix

Check continuity of contactor B control circuit
Check control circuit voltage
Inspect system relays and fuses
Check the operation of the control module
If necessary, replace contactor B

Related codes

P2BD0 P2BD2 P0AA6