P0E9A

DC/DC Converter Voltage Sensor C Circuit Intermittent/Erratic

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$17–56 (est.)

Symptoms

Check Engine light comes on
Unstable operation of electronic systems
Battery charging problems
Reduced vehicle performance

Causes

Open or short circuit in the sensor circuit
Poor contact in the sensor connector
Voltage sensor fault C
Problems with DC/DC converter
Contact corrosion

How to Fix

Check the integrity of wiring and connectors
Clean contacts from corrosion
Check the resistance of the voltage sensor
Replace voltage sensor C if necessary
Check the operation of the DC/DC converter

Related codes

P0E9B P0E9C P0E9D