P0E33

DC/DC Converter Voltage Sensor A Low

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–278 (est.)

Symptoms

Check Engine light comes on
Reduced vehicle power
Problems with charging a 12-volt system
Incorrect operation of the hybrid system
The car may go into emergency mode

Causes

Malfunction of the voltage sensor of the DC/DC converter
Open or short circuit in the sensor circuit
Problems with the DC/DC converter itself
Auxiliary 12-volt battery low
High voltage battery fault

How to Fix

Check auxiliary 12-volt battery voltage
Check the continuity of the voltage sensor circuit
Test the voltage sensor of the DC/DC converter
Check the operation of the DC/DC converter itself
If necessary, replace faulty components

Related codes

P0E34 P0E32 P0A7F