P0E9B

DC/DC Converter Current Sensor B Circuit

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$28–89 (est.)

Symptoms

Check Engine Light Is On
Reduced charging efficiency of a 12V battery
Problems with the operation of car electronic systems
Reduced performance of the hybrid system

Causes

Current sensor B fault
Open or short circuit in the sensor circuit
Poor contact or corrosion in connectors
Problems with the DC/DC converter control unit

How to Fix

Check continuity of current sensor B circuit
Inspect connectors and contacts for damage
Test the current sensor with a multimeter
Check control unit software updates
If necessary, replace the current sensor

Related codes

P0E9A P0E9C P0E98