P0B48

Hybrid/EV Battery Voltage Sense C Circuit High

Severity

🔴 High

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$56–278 (est.)

Symptoms

Check Engine light comes on
Reduced vehicle power
Reduced electric range
Incorrect battery level readings
Switching to emergency mode

Causes

Battery voltage sensor fault
Damaged or corroded circuit C wiring
Problems with sensor connectors
Battery management module (BMS) malfunction
Increased resistance in the circuit

How to Fix

Check the integrity of the wiring and connectors of circuit C
Test battery voltage sensor
Check the operation of the battery management module
Replace damaged circuit components
Reset the error and take a test drive

Related codes

P0B47 P0B49 P0B4A