OBD Guide

P2CAA

DC/DC Converter Temperature Sensor F Circuit Low

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$33–89 (est.)

Symptoms

  • Check Engine light comes on
  • Reduced performance of the hybrid system
  • The car may go into emergency mode
  • Possible problems with charging the high-voltage battery

Causes

  • DC/DC converter temperature sensor malfunction
  • Open or short circuit in the sensor circuit
  • Poor connection or corroded connectors
  • Problems with the DC/DC converter control unit

How to Fix

  1. Check the continuity of the temperature sensor circuit
  2. Inspect connectors and connections for corrosion or damage
  3. Check the functionality of the temperature sensor
  4. If necessary, replace the temperature sensor
  5. Check and, if necessary, update the software of the control unit

Related codes

Error P2CAA by Vehicle Brand