P2BCB

Battery Charging System Negative Contactor B Circuit

Severity

🔴 High

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Check Engine light comes on
Hybrid system power reduction
Problems with charging a high-voltage battery
The car goes into emergency mode
An error message appears on the dashboard

Causes

Negative contactor B fault
Open or short circuit in the contactor circuit
Contactor relay problems
Malfunction of the hybrid system control unit
Corrosion or poor contact in connectors

How to Fix

Check the condition of contactor B
Check the integrity of the wiring and connectors in the circuit
Check the functionality of the contactor relay
Scan the hybrid system control unit for errors
Replace faulty contactor or circuit components

Related codes

P2BCA P2BCC P2BCD