P0B88

Hybrid/EV Battery Voltage Sense P Circuit Low

Severity

🔴 High

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–278 (est.)

Symptoms

Hybrid system power reduction
Increased fuel consumption
Check Engine Light Illuminates
Reduced efficiency of regenerative braking
Error messages on the display

Causes

P circuit voltage sensor malfunction
Damage to the measuring circuit wiring harness
Poor contact in connectors
Battery cell problems
Battery management module malfunction

How to Fix

Check the integrity of the P circuit wiring harness
Check connections and contacts of sensors
Test voltage sensors
Check the condition of the battery cells
Battery Management Module Diagnostics
Repair only from an authorized dealer

Related codes

P0B89 P0B87 P0AFA