What it means
A control module received invalid data from hybrid/EV battery interface control module F. The code identifies a data validity fault; the specific affected function depends on the vehicle.
At a glance
- Usually lights the warning light of the system that lost communication
- The engine or gearbox may go into limp mode
How it works
Hybrid/EV battery interface control module F provides battery-related data to other vehicle modules. This code sets when a receiving module judges the data specifically from interface module F invalid; it does not prove the battery pack or another interface module is faulty.
Common causes
Most likely first.
- Fault in the transmitting module
- Network wiring or connector fault
- Module power or ground fault
- Software or configuration mismatch
Symptoms
- Hybrid or EV battery warnings may appear
- Battery or vehicle performance may be limited
How to diagnose it
- Save freeze-frame data and scan all modules for battery and network codes, noting which module rejected data from interface module F.
- Check live data available for module F and compare related readings with other battery interface modules for missing or implausible values.
- Without disturbing high-voltage components, inspect accessible low-voltage connectors and wiring for module F for corrosion, damage, or loose seating.
- Have the low-voltage power and ground and network wiring for module F checked according to the manufacturer's safety procedure.
- If circuit checks pass, check module F software and configuration and follow manufacturer guidance for further battery-system diagnosis.
Common fixes
- Repair a loose, corroded, or damaged accessible low-voltage connector or harness for interface module F.
- Restore a faulty low-voltage power or ground connection to module F.
- Correct a software or configuration mismatch using the manufacturer's procedure.
- Repair or replace interface module F if it continues transmitting invalid data after circuit checks.
Can I keep driving?
Stop safely and follow the vehicle's instructions if a battery warning, reduced propulsion, or stop-vehicle message appears. Do not handle high-voltage parts; arrange prompt diagnosis because battery performance may be limited.
A code shows where the control module detected a fault, not always which part failed. Check the causes in order and confirm with a test before replacing parts. Have several codes? Check them together
This is a generic code: it means the same on every make. The car’s maker may add more detail in its own service information.