P1FCD
Hybrid/EV Battery Interface Control Module 9 Cell Balancing Circuit
P1FCD is an OBD-II diagnostic trouble code meaning: Hybrid/EV Battery Interface Control Module 9 Cell Balancing Circuit. Common causes: cell balancing module malfunction, damage to the wiring to the balancing module. Estimated repair cost: $167–556.
Symptoms
- Reduced electric vehicle range
- Increased charging time
- Check engine light comes on
- The car goes into emergency mode
- Uneven heating of the battery pack
Causes
- Cell balancing module malfunction
- Damage to the wiring to the balancing module
- Degradation of one or more battery cells
- Battery controller problems
- Corroded connections in the battery pack
How to Fix
- Diagnosis of battery cell condition
- Checking the integrity of the wiring to the balancing module
- Testing the cell balancing module
- Replacing a faulty balancing module
- Flashing the battery controller (if necessary)
Related codes
FAQ
What does the P1FCD code mean?
P1FCD is an OBD-II diagnostic trouble code that indicates: Hybrid/EV Battery Interface Control Module 9 Cell Balancing Circuit
What causes a P1FCD error code?
The most common causes of P1FCD include: Cell balancing module malfunction; Damage to the wiring to the balancing module; Degradation of one or more battery cells; Battery controller problems.
How do I fix a P1FCD diagnostic trouble code?
To fix P1FCD: Diagnosis of battery cell condition. Checking the integrity of the wiring to the balancing module. Testing the cell balancing module. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P1FCD?
Do not drive — repair immediately
How much does it cost to fix P1FCD?
The estimated repair cost for P1FCD is $167–556. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat