P0E91

Drive Motor B Inverter Voltage Sensor B Circuit

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
The car goes into emergency mode
Increased fuel consumption (for hybrids)
Problems with regenerative braking

Causes

Inverter B voltage sensor fault
Open or short circuit in the sensor circuit
Wiring Harness Problems
Malfunction of the inverter itself
Poor contact in connectors

How to Fix

Check the integrity of the sensor circuit
Check connections and connectors
Test the voltage sensor
Check the operation of the inverter
If necessary, replace the sensor or inverter

Related codes

P0E90 P0E92 P0AFA