OBD Guide

P1FFE

Hybrid/EV Battery Pack Coolant Level Low

P1FFE is an OBD-II diagnostic trouble code meaning: Hybrid/EV Battery Pack Coolant Level Low. Common causes: coolant leak from the system, coolant level sensor malfunction. Estimated repair cost: $33–167.

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

Symptoms

  • Warning message on dashboard
  • Hybrid system power reduction
  • Increased cooling system noise
  • Reduced battery efficiency
  • In some cases, the vehicle goes into emergency mode

Causes

  • Coolant leak from the system
  • Coolant level sensor malfunction
  • Problems with the battery cooling pump
  • Airing the cooling system
  • Coolant degradation over time

How to Fix

  1. Check the coolant level in the expansion tank
  2. Inspect the system for leaks
  3. Diagnose the operation of the battery cooling pump
  4. Check the level sensor readings
  5. If necessary, add or replace refrigerant
  6. Bleed the cooling system to remove air pockets

Related codes

FAQ

What does the P1FFE code mean?

P1FFE is an OBD-II diagnostic trouble code that indicates: Hybrid/EV Battery Pack Coolant Level Low

What causes a P1FFE error code?

The most common causes of P1FFE include: Coolant leak from the system; Coolant level sensor malfunction; Problems with the battery cooling pump; Airing the cooling system.

How do I fix a P1FFE diagnostic trouble code?

To fix P1FFE: Check the coolant level in the expansion tank. Inspect the system for leaks. Diagnose the operation of the battery cooling pump. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1FFE?

Limited driving only, diagnose soon

How much does it cost to fix P1FFE?

The estimated repair cost for P1FFE is $33–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat