OBD Guide

P1FE2

Hybrid/EV Battery Interface Control Module 4 Voltage Sensor Circuit High Voltage

P1FE2 is an OBD-II diagnostic trouble code meaning: Hybrid/EV Battery Interface Control Module 4 Voltage Sensor Circuit High Voltage. Common causes: voltage sensor fault, damaged wiring or poor contact in the sensor circuit. Estimated repair cost: $56–167.

Severity
🔴 High
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Check Engine light comes on
  • Reduced performance of the hybrid system
  • The car goes into emergency mode
  • Unstable operation of the battery charging system
  • Reduced vehicle power

Causes

  • Voltage sensor fault
  • Damaged wiring or poor contact in the sensor circuit
  • Battery management module malfunction
  • Circuit Grounding Problems
  • Short circuit in the sensor circuit

How to Fix

  1. Check the integrity of the wiring and contacts in the sensor circuit
  2. Check the resistance and voltage at the sensor
  3. Check circuit grounding
  4. Replace voltage sensor if necessary
  5. Check and replace the battery management module if necessary

Related codes

FAQ

What does the P1FE2 code mean?

P1FE2 is an OBD-II diagnostic trouble code that indicates: Hybrid/EV Battery Interface Control Module 4 Voltage Sensor Circuit High Voltage

What causes a P1FE2 error code?

The most common causes of P1FE2 include: Voltage sensor fault; Damaged wiring or poor contact in the sensor circuit; Battery management module malfunction; Circuit Grounding Problems.

How do I fix a P1FE2 diagnostic trouble code?

To fix P1FE2: Check the integrity of the wiring and contacts in the sensor circuit. Check the resistance and voltage at the sensor. Check circuit grounding. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1FE2?

Yes, but get it checked soon

How much does it cost to fix P1FE2?

The estimated repair cost for P1FE2 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat