P2D40
Hybrid/EV Battery Cooling System C Performance
P2D40 is an OBD-II diagnostic trouble code meaning: Hybrid/EV Battery Cooling System C Performance. Common causes: battery cooling pump malfunction, low coolant level. Estimated repair cost: $56–278.
Symptoms
- Hybrid system power reduction
- Battery overheat warning on instrument panel
- Extended charging time (for plug-in hybrids/EVs)
- Reduced electric range
- Noise from the cooling system
Causes
- Battery cooling pump malfunction
- Low coolant level
- Cooling circuit clogged
- Problems with battery temperature sensors
- Malfunction of the cooling system control module
How to Fix
- Check the level and condition of the coolant
- Diagnose the operation of the cooling system pump
- Check the tightness of the cooling system
- Scan battery temperature sensors
- Update the control module software (if necessary)
- Repair only from an authorized dealer
Related codes
Error P2D40 by Vehicle Brand
FAQ
What does the P2D40 code mean?
P2D40 is an OBD-II diagnostic trouble code that indicates: Hybrid/EV Battery Cooling System C Performance
What causes a P2D40 error code?
The most common causes of P2D40 include: Battery cooling pump malfunction; Low coolant level; Cooling circuit clogged; Problems with battery temperature sensors.
How do I fix a P2D40 diagnostic trouble code?
To fix P2D40: Check the level and condition of the coolant. Diagnose the operation of the cooling system pump. Check the tightness of the cooling system. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P2D40?
Do not drive — repair immediately
How much does it cost to fix P2D40?
The estimated repair cost for P2D40 is $56–278. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat