P0B52
Hybrid/EV Battery Voltage Sense E Circuit High
P0B52 is an OBD-II diagnostic trouble code meaning: Hybrid/EV Battery Voltage Sense E Circuit High. Common causes: faulty battery voltage sensors, damage to the measuring circuit wiring harness. Estimated repair cost: $56–278.
Symptoms
- Check Engine light comes on
- Hybrid system power reduction
- Reducing electric range
- The vehicle goes into emergency mode
- Unstable operation of the power plant
Causes
- Faulty battery voltage sensors
- Damage to the measuring circuit wiring harness
- Corrosion or poor contact in connectors
- Battery management module (BMS) malfunction
- Problems with high voltage battery
How to Fix
- Check the condition of the voltage sensors
- Inspect the wiring harness for damage
- Check the contacts and connectors of the measuring circuit
- Test the battery management module
- Diagnose the condition of a high-voltage battery
Related codes
Error P0B52 by Vehicle Brand
FAQ
What does the P0B52 code mean?
P0B52 is an OBD-II diagnostic trouble code that indicates: Hybrid/EV Battery Voltage Sense E Circuit High
What causes a P0B52 error code?
The most common causes of P0B52 include: Faulty battery voltage sensors; Damage to the measuring circuit wiring harness; Corrosion or poor contact in connectors; Battery management module (BMS) malfunction.
How do I fix a P0B52 diagnostic trouble code?
To fix P0B52: Check the condition of the voltage sensors. Inspect the wiring harness for damage. Check the contacts and connectors of the measuring circuit. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P0B52?
Do not drive — repair immediately
How much does it cost to fix P0B52?
The estimated repair cost for P0B52 is $56–278. Actual cost depends on your vehicle, location, and labor rates.
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