P2BC7

Battery Charging System Positive Contactor B Control Circuit/Open

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$17–89 (est.)

Symptoms

Charging system warning on dashboard
Unstable battery charging
Reduced hybrid system efficiency (if applicable)
Periodic shutdown of voltage dependent systems

Causes

Broken or damaged wiring in the control circuit
Contactor relay fault
Problems with the charging system control unit
Corrosion of contacts in the circuit
Contactor B itself is faulty

How to Fix

Check the integrity of the wiring in the contactor control circuit
Check the condition of the relay and contacts
Test the operation of contactor B
Check the functionality of the charging system control unit
If necessary, replace faulty components

Related codes

P2BC6 P2BC8 P0A7F