P2CA5

DC/DC Converter Temperature Sensor E Circuit

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$33–89 (est.)

Symptoms

Check Engine light comes on
Reduced hybrid system efficiency
Vehicle power limitation
DC/DC converter overheating
Unstable operation of systems powered by the converter

Causes

Open or short circuit in the sensor circuit
DC/DC converter temperature sensor malfunction
Connector problems or contact corrosion
DC/DC converter malfunction
Problems with the hybrid system ECU

How to Fix

Check the continuity of the temperature sensor circuit
Inspect connectors and contacts for damage
Check the resistance of the temperature sensor
Replace temperature sensor if necessary
Check the operation of the DC/DC converter
Scan the ECU for additional errors

Related codes

P2CA4 P2CA6 P0A7F