OBD Guide

P0E99

DC/DC Converter Voltage Sensor C Circuit High

P0E99 is an OBD-II diagnostic trouble code meaning: DC/DC Converter Voltage Sensor C Circuit High. Common causes: voltage sensor fault c, open or short circuit in the sensor circuit. Estimated repair cost: $33–167.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$33–167 (est.)

Symptoms

  • Check Engine light comes on
  • Reduced performance of the hybrid system
  • Interruptions in the operation of electrical equipment
  • Problems with charging a high-voltage battery

Causes

  • Voltage sensor fault C
  • Open or short circuit in the sensor circuit
  • Wiring Harness Problems
  • DC/DC converter malfunction
  • Problems with the hybrid system ECU

How to Fix

  1. Check continuity of voltage sensor C circuit
  2. Test voltage sensor C
  3. Inspect the wiring harness for damage
  4. Check the operation of the DC/DC converter
  5. If necessary, replace the sensor or converter

Error P0E99 by Vehicle Brand

FAQ

What does the P0E99 code mean?

P0E99 is an OBD-II diagnostic trouble code that indicates: DC/DC Converter Voltage Sensor C Circuit High

What causes a P0E99 error code?

The most common causes of P0E99 include: Voltage sensor fault C; Open or short circuit in the sensor circuit; Wiring Harness Problems; DC/DC converter malfunction.

How do I fix a P0E99 diagnostic trouble code?

To fix P0E99: Check continuity of voltage sensor C circuit. Test voltage sensor C. Inspect the wiring harness for damage. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P0E99?

Limited driving only, diagnose soon

How much does it cost to fix P0E99?

The estimated repair cost for P0E99 is $33–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat