P0B98

Hybrid/EV Battery Voltage Sense S Circuit High

Severity

🔴 High

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$56–556 (est.)

Symptoms

Check Engine light comes on
Reduced vehicle power
The car goes into emergency mode
Reducing the range of an electric vehicle
Incorrect battery level readings

Causes

High voltage battery fault
Damage to the voltage sensor circuit
Short circuit in the measuring circuit
Battery management module (BMS) malfunction
Problems with contacts in connectors

How to Fix

Check the condition of the high-voltage battery
Inspect the voltage sensor circuit for damage
Check resistance and continuity
Scan the battery management module for errors
Check connections and contacts in connectors
Repair only from an authorized dealer

Related codes

P0B99 P0B97 P0A80