OBD Guide
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P1FEA

Hybrid/EV Battery Interface Control Module 2 Voltage Sensor Performance

P1FEA is an OBD-II diagnostic trouble code meaning: Hybrid/EV Battery Interface Control Module 2 Voltage Sensor Performance. Common causes: voltage sensor fault, problems with wiring to the control module. Estimated repair cost: $56–278.

Severity
🔴 High
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–278 (est.)

Symptoms

  • Check Engine light comes on
  • Reduced performance of the hybrid system
  • Engine power limitation
  • Incorrect battery level display
  • The vehicle goes into emergency mode

Causes

  • Voltage sensor fault
  • Problems with wiring to the control module
  • Contact corrosion
  • Control module software error
  • Damage to the control module itself

How to Fix

  1. Check the integrity of wiring and contacts
  2. Test the voltage sensor
  3. Perform control module diagnostics
  4. If necessary, replace the sensor or module
  5. Calibrate the system after repair

Related codes

P1FEBP0AA6P0A7F

FAQ

What does the P1FEA code mean?

P1FEA is an OBD-II diagnostic trouble code that indicates: Hybrid/EV Battery Interface Control Module 2 Voltage Sensor Performance

What causes a P1FEA error code?

The most common causes of P1FEA include: Voltage sensor fault; Problems with wiring to the control module; Contact corrosion; Control module software error.

How do I fix a P1FEA diagnostic trouble code?

To fix P1FEA: Check the integrity of wiring and contacts. Test the voltage sensor. Perform control module diagnostics. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1FEA?

Limited driving only, diagnose soon

How much does it cost to fix P1FEA?

The estimated repair cost for P1FEA is $56–278. Actual cost depends on your vehicle, location, and labor rates.

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