What it means
A control module received invalid data from hybrid/EV battery interface control module E. 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 E sends battery-related information to other vehicle modules. This code sets when a receiving module judges data from interface module E invalid; it does not by itself identify a battery cell fault or establish that other interface modules are affected.
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
- Record freeze-frame data and scan all modules for battery and communication codes, identifying which module reported invalid data from interface module E.
- Review available live data from module E and compare related values with those from the other battery interface modules for missing or implausible readings.
- Do not open the high-voltage battery; visually inspect only accessible low-voltage connectors and harnesses for module E for damage, corrosion, or poor seating.
- Have module E's low-voltage power and ground and network connections checked using the manufacturer's safety procedures.
- If the connections and supplies pass, investigate software or configuration issues for module E and follow manufacturer guidance for further diagnosis.
Common fixes
- Repair loose, corroded, or damaged accessible low-voltage connectors or wiring for interface module E.
- Restore a faulty low-voltage power or ground connection to module E.
- Correct a software or configuration mismatch using the manufacturer's procedure.
- Repair or replace interface module E if testing confirms it is sending invalid data.
Can I keep driving?
If a battery warning, reduced power, or a stop-vehicle alert appears, stop safely and follow the vehicle's instructions; propulsion or battery protection may be limited. Keep away from high-voltage components and arrange prompt diagnosis.
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.