OBD Guide

P2CAC

DC/DC Converter Temperature Sensor F Circuit Range/Performance

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–89 (est.)

Symptoms

  • Check Engine light comes on
  • Reduced performance of the hybrid system
  • Possible problems with battery charging
  • Increased fuel consumption
  • Unstable engine operation

Causes

  • The temperature sensor of the DC/DC converter F is faulty
  • Open or short circuit in the sensor circuit
  • Poor contact in sensor connectors
  • DC/DC converter malfunction
  • Problems with the engine control unit (ECU)

How to Fix

  1. Check the DC/DC F converter temperature sensor wiring and connectors for damage or corrosion.
  2. Check the temperature sensor of the DC/DC F converter using a multimeter.
  3. Check the DC/DC converter for overheating or other problems.
  4. Replace the DC/DC F converter temperature sensor if it is faulty.
  5. Check the engine control unit (ECU) for errors and update the software if necessary.

Related codes

Error P2CAC by Vehicle Brand