P3043
Hybrid/EV Battery Interface Control Module 12 Voltage Sensor Circuit Low Voltage
P3043 is an OBD-II diagnostic trouble code meaning: Hybrid/EV Battery Interface Control Module 12 Voltage Sensor Circuit Low Voltage. Common causes: voltage sensor fault, damaged wiring or poor connection. Estimated repair cost: $56–222.
Symptoms
- Check engine light comes on
- Hybrid system power reduction
- Problems with charging a high-voltage battery
- Unstable operation of the hybrid system
- Reducing electric range
Causes
- Voltage sensor fault
- Damaged wiring or poor connection
- Problems with the Battery Interface Control Module
- Short circuit in the circuit
- Module power problems
How to Fix
- Check the voltage at the sensor and compare with normalized values
- Inspect wiring and connections for damage
- Check the operation of the battery interface control module
- Replace voltage sensor if necessary
- Repair only from an authorized dealer
Related codes
FAQ
What does the P3043 code mean?
P3043 is an OBD-II diagnostic trouble code that indicates: Hybrid/EV Battery Interface Control Module 12 Voltage Sensor Circuit Low Voltage
What causes a P3043 error code?
The most common causes of P3043 include: Voltage sensor fault; Damaged wiring or poor connection; Problems with the Battery Interface Control Module; Short circuit in the circuit.
How do I fix a P3043 diagnostic trouble code?
To fix P3043: Check the voltage at the sensor and compare with normalized values. Inspect wiring and connections for damage. Check the operation of the battery interface control module. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P3043?
Do not drive — repair immediately
How much does it cost to fix P3043?
The estimated repair cost for P3043 is $56–222. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat