P0BB1

Hybrid/EV Battery Voltage Sense X Circuit High

Severity

🔴 High

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–278 (est.)

Symptoms

Check Engine light comes on
Hybrid system power reduction
Activation of emergency operation
Incorrect battery level display
Deteriorating fuel economy

Causes

Battery voltage sensor fault
Damaged or corroded wiring
Problems with connectors in the sensor circuit
Malfunction of the hybrid control module (HCU)
Problems with high voltage battery

How to Fix

Check the integrity of the wiring and connectors in the sensor circuit
Test battery voltage sensor
Check the parameters of the high-voltage battery
Scan the HCU for additional errors
If necessary, replace the voltage sensor or repair the wiring

Related codes

P0BB0 P0BB2 P0AFA