P0B87

Hybrid/EV Battery Voltage Sense P Circuit Range/Performance

Severity

🔴 High

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$56–167 (est.)

Symptoms

Check Engine light comes on
Hybrid system power reduction
Unstable operation of the hybrid battery
Increased fuel consumption

Causes

Hybrid battery voltage sensor malfunction
Damage to wiring or connectors
Problems with the battery management module
Contact corrosion
Grounding problems

How to Fix

Check the condition of the wiring and connectors
Check hybrid battery voltage sensors
Check Battery Management Module
Clean contacts from corrosion
Check grounding

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