P1FB4
Hybrid/EV Battery Interface Control Module 8 Random Access Memory Performance
P1FB4 is an OBD-II diagnostic trouble code meaning: Hybrid/EV Battery Interface Control Module 8 Random Access Memory Performance. Common causes: hybrid battery control module malfunction, problems with module ram. Estimated repair cost: $167–556.
Symptoms
- Check Engine Light Is On
- Hybrid system power reduction
- Incorrect display of battery charge level
- Problems with switching driving modes
- Spontaneous shutdown of the hybrid system
Causes
- Hybrid battery control module malfunction
- Problems with module RAM
- Damage to the wiring harness to the module
- Module software error
- Short circuit in control circuit
How to Fix
- Hybrid Battery Control Module Diagnostics
- Checking the condition of the wiring harness and contacts
- Module software update
- Replacing the control module if necessary
- Repair only from an authorized dealer
Related codes
FAQ
What does the P1FB4 code mean?
P1FB4 is an OBD-II diagnostic trouble code that indicates: Hybrid/EV Battery Interface Control Module 8 Random Access Memory Performance
What causes a P1FB4 error code?
The most common causes of P1FB4 include: Hybrid battery control module malfunction; Problems with module RAM; Damage to the wiring harness to the module; Module software error.
How do I fix a P1FB4 diagnostic trouble code?
To fix P1FB4: Hybrid Battery Control Module Diagnostics. Checking the condition of the wiring harness and contacts. Module software update. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P1FB4?
Do not drive — repair immediately
How much does it cost to fix P1FB4?
The estimated repair cost for P1FB4 is $167–556. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat