P0B3D

Hybrid/EV Battery Voltage Sense A Circuit Low

Severity

🔴 High

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$56–1667 (est.)

Symptoms

Reduced vehicle power
Check Engine/Hybrid System Warning Light
Reduced electric range
Incorrect battery readings
The car goes into emergency mode

Causes

Damage to the high voltage battery
Open or short circuit in the voltage sensor circuit
Battery voltage monitoring module malfunction
Poor contacts in sensor circuit connectors
Problems with the central control unit of the hybrid system

How to Fix

Diagnosis of the condition of a high-voltage battery
Checking the continuity of the voltage sensor circuit
Testing the battery voltage monitoring module
Checking and cleaning all contacts in the circuit
Diagnostics of the hybrid system control unit

Related codes

P0B3C P0B3E P0B79