OBD Guide

P2CAB

DC/DC Converter Temperature Sensor F Circuit High

P2CAB is an OBD-II diagnostic trouble code meaning: DC/DC Converter Temperature Sensor F Circuit High. Common causes: open circuit in the temperature sensor circuit, short circuit to ground. Estimated repair cost: $17–56.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–56 (est.)

Symptoms

  • Check Engine light comes on
  • Reduced performance in hybrid systems
  • Problems with charging a high-voltage battery
  • DC/DC converter overheating
  • Engine power limitation

Causes

  • Open circuit in the temperature sensor circuit
  • Short circuit to ground
  • Temperature sensor malfunction
  • Wiring Harness Problems
  • DC/DC converter malfunction

How to Fix

  1. Check the continuity of the temperature sensor circuit
  2. Check the resistance of the temperature sensor
  3. Inspect the wiring harness for damage
  4. Replace temperature sensor if necessary
  5. Check the operation of the DC/DC converter

Related codes

Error P2CAB by Vehicle Brand

FAQ

What does the P2CAB code mean?

P2CAB is an OBD-II diagnostic trouble code that indicates: DC/DC Converter Temperature Sensor F Circuit High

What causes a P2CAB error code?

The most common causes of P2CAB include: Open circuit in the temperature sensor circuit; Short circuit to ground; Temperature sensor malfunction; Wiring Harness Problems.

How do I fix a P2CAB diagnostic trouble code?

To fix P2CAB: Check the continuity of the temperature sensor circuit. Check the resistance of the temperature sensor. Inspect the wiring harness for damage. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P2CAB?

Yes, but get it checked soon

How much does it cost to fix P2CAB?

The estimated repair cost for P2CAB is $17–56. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat