P3044
Hybrid/EV Battery Interface Control Module 12 Voltage Sensor Circuit High Voltage
P3044 is an OBD-II diagnostic trouble code meaning: Hybrid/EV Battery Interface Control Module 12 Voltage Sensor Circuit High Voltage. Common causes: control module voltage sensor malfunction, damaged wiring or poor contact in the circuit. Estimated repair cost: $56–167.
Symptoms
- Check Engine light comes on
- Hybrid system power reduction
- Incorrect battery level readings
- The car goes into emergency mode
- Problems charging the hybrid battery
Causes
- Control module voltage sensor malfunction
- Damaged wiring or poor contact in the circuit
- Problems with the battery management module
- Short circuit in the circuit
- Circuit Grounding Problems
How to Fix
- Check the integrity of the wiring and connections in the sensor circuit
- Test the control module voltage sensor
- Check the operation of the battery management module
- Measure the actual voltage in the circuit
- Replace faulty components
Related codes
FAQ
What does the P3044 code mean?
P3044 is an OBD-II diagnostic trouble code that indicates: Hybrid/EV Battery Interface Control Module 12 Voltage Sensor Circuit High Voltage
What causes a P3044 error code?
The most common causes of P3044 include: Control module voltage sensor malfunction; Damaged wiring or poor contact in the circuit; Problems with the battery management module; Short circuit in the circuit.
How do I fix a P3044 diagnostic trouble code?
To fix P3044: Check the integrity of the wiring and connections in the sensor circuit. Test the control module voltage sensor. Check the operation of the battery management module. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P3044?
Do not drive — repair immediately
How much does it cost to fix P3044?
The estimated repair cost for P3044 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat