P0B45
Hybrid/EV Battery Voltage Sense C Circuit
P0B45 is an OBD-II diagnostic trouble code meaning: Hybrid/EV Battery Voltage Sense C Circuit. Common causes: open or short circuit in the sensor circuit, poor contact in connectors. Estimated repair cost: $167–556.
Symptoms
- Check Engine light comes on
- Reduced vehicle power
- Switching to emergency mode
- Battery charging problems
- Unstable operation of the hybrid system
Causes
- Open or short circuit in the sensor circuit
- Poor contact in connectors
- Section C voltage sensor fault
- Wiring harness damage
- Problems with the battery management module
How to Fix
- Check the integrity of the sensor circuit
- Inspect connectors for corrosion
- Check sensor resistance
- Scan Battery Management Module
- If necessary, replace the sensor or repair the wiring
Related codes
Error P0B45 by Vehicle Brand
FAQ
What does the P0B45 code mean?
P0B45 is an OBD-II diagnostic trouble code that indicates: Hybrid/EV Battery Voltage Sense C Circuit
What causes a P0B45 error code?
The most common causes of P0B45 include: Open or short circuit in the sensor circuit; Poor contact in connectors; Section C voltage sensor fault; Wiring harness damage.
How do I fix a P0B45 diagnostic trouble code?
To fix P0B45: Check the integrity of the sensor circuit. Inspect connectors for corrosion. Check sensor resistance. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P0B45?
Do not drive — repair immediately
How much does it cost to fix P0B45?
The estimated repair cost for P0B45 is $167–556. Actual cost depends on your vehicle, location, and labor rates.
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