OBD Guide

P1FDA

Hybrid/EV Battery Interface Control Module 6 Voltage Sensor Circuit Low Voltage

P1FDA is an OBD-II diagnostic trouble code meaning: Hybrid/EV Battery Interface Control Module 6 Voltage Sensor Circuit Low Voltage. Common causes: battery module voltage sensor malfunction, open or short circuit in the sensor circuit. Estimated repair cost: $56–278.

Severity
🔴 High
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$56–278 (est.)

Symptoms

  • Check Engine light comes on
  • Hybrid system power reduction
  • The car goes into emergency mode
  • Reducing electric range
  • Incorrect battery level readings

Causes

  • Battery module voltage sensor malfunction
  • Open or short circuit in the sensor circuit
  • Poor connection or corroded contacts
  • Problems with the battery management module
  • High voltage battery fault

How to Fix

  1. Check the continuity of the voltage sensor circuit
  2. Inspect and clean connector contacts
  3. Check the functionality of the voltage sensor
  4. Test the battery management module
  5. If necessary, replace the sensor or module

Related codes

FAQ

What does the P1FDA code mean?

P1FDA is an OBD-II diagnostic trouble code that indicates: Hybrid/EV Battery Interface Control Module 6 Voltage Sensor Circuit Low Voltage

What causes a P1FDA error code?

The most common causes of P1FDA include: Battery module voltage sensor malfunction; Open or short circuit in the sensor circuit; Poor connection or corroded contacts; Problems with the battery management module.

How do I fix a P1FDA diagnostic trouble code?

To fix P1FDA: Check the continuity of the voltage sensor circuit. Inspect and clean connector contacts. Check the functionality of the voltage sensor. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1FDA?

Do not drive — repair immediately

How much does it cost to fix P1FDA?

The estimated repair cost for P1FDA is $56–278. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat