P1E9F
Hybrid/EV Battery Interface Control Module 3 5 V Reference Circuit
P1E9F is an OBD-II diagnostic trouble code meaning: Hybrid/EV Battery Interface Control Module 3 5 V Reference Circuit. Common causes: open or short circuit in the reference voltage circuit, poor contact in the control module connectors. Estimated repair cost: $56–278.
Symptoms
- Check Engine light comes on
- Hybrid system power reduction
- Incorrect battery level readings
- The vehicle goes into emergency mode
- Errors in the operation of the regenerative braking system
Causes
- Open or short circuit in the reference voltage circuit
- Poor contact in the control module connectors
- Battery Interface Control Module Malfunction
- Wiring harness damage
- Circuit Grounding Problems
How to Fix
- Check the continuity of the 3.5V reference voltage circuit
- Inspect and clean the contacts of the control module connectors
- Check resistance and voltage in the circuit
- Replace the Battery Interface Control Module if necessary
- Check and repair damaged wiring
Related codes
FAQ
What does the P1E9F code mean?
P1E9F is an OBD-II diagnostic trouble code that indicates: Hybrid/EV Battery Interface Control Module 3 5 V Reference Circuit
What causes a P1E9F error code?
The most common causes of P1E9F include: Open or short circuit in the reference voltage circuit; Poor contact in the control module connectors; Battery Interface Control Module Malfunction; Wiring harness damage.
How do I fix a P1E9F diagnostic trouble code?
To fix P1E9F: Check the continuity of the 3.5V reference voltage circuit. Inspect and clean the contacts of the control module connectors. Check resistance and voltage in the circuit. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P1E9F?
Limited driving only, diagnose soon
How much does it cost to fix P1E9F?
The estimated repair cost for P1E9F is $56–278. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat