P0E9C

DC/DC Converter Current Sensor B Circuit Range/Performance

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Check Engine Light Is On
Reduced efficiency of the DC/DC converter
Problems charging a 12-volt battery
Possible malfunctions in the electronic systems of the car
In some cases - reduced power of the hybrid system

Causes

Faulty current sensor B of the DC/DC converter
Damage or corrosion of the wiring in the sensor circuit
Poor contacts or oxidation of connectors
Problems with the DC/DC converter itself
Control unit malfunction

How to Fix

Check the integrity of the wiring and connectors in the sensor circuit
Check resistance and signal of current sensor B
If necessary, replace current sensor B
Check the operation of the DC/DC converter
Scan the control unit for additional errors

Related codes

P0E9B P0E9D P0A7F