P1B48
Hybrid/Electric Vehicle Battery 34 Circuit Performance
P1B48 is an OBD-II diagnostic trouble code meaning: Hybrid/Electric Vehicle Battery 34 Circuit Performance. Common causes: faulty battery cell no. 34, problems with the wiring or contacts of the battery circuit. Estimated repair cost: $167–556.
Symptoms
- Hybrid system power reduction
- Reducing electric range
- Check Engine Light Illuminates
- The vehicle goes into emergency mode
- Unstable operation of the hybrid system
Causes
- Faulty battery cell No. 34
- Problems with the wiring or contacts of the battery circuit
- Battery management system (BMS) malfunction
- Corroded or damaged connectors
- Problems with balancing battery cells
How to Fix
- Diagnostics of the condition of battery cell No. 34
- Checking the integrity of wiring and contacts
- Battery Management System (BMS) Diagnostics
- Replacing a faulty cell or system components
- Repair only from an authorized dealer
Related codes
FAQ
What does the P1B48 code mean?
P1B48 is an OBD-II diagnostic trouble code that indicates: Hybrid/Electric Vehicle Battery 34 Circuit Performance
What causes a P1B48 error code?
The most common causes of P1B48 include: Faulty battery cell No. 34; Problems with the wiring or contacts of the battery circuit; Battery management system (BMS) malfunction; Corroded or damaged connectors.
How do I fix a P1B48 diagnostic trouble code?
To fix P1B48: Diagnostics of the condition of battery cell No. 34. Checking the integrity of wiring and contacts. Battery Management System (BMS) Diagnostics. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P1B48?
Do not drive — repair immediately
How much does it cost to fix P1B48?
The estimated repair cost for P1B48 is $167–556. Actual cost depends on your vehicle, location, and labor rates.
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