P0B9D

Hybrid/EV Battery Voltage Sense T Circuit High

Severity

🔴 High

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Check Engine light comes on
Hybrid system power reduction
Switching to emergency mode
Incorrect display of battery charge level
Increased fuel consumption (for hybrids)

Causes

Battery voltage sensor fault
Open or short circuit in the sensor circuit
Wiring Harness Problems
Malfunction of the hybrid system control module
Corrosion of contacts in the sensor circuit

How to Fix

Check the continuity of the voltage sensor circuit
Test battery voltage sensor
Check connections and contacts in the circuit
Scan the control module for additional errors
Replace a faulty sensor or repair wiring

Related codes

P0B9C P0B9E P0B9F