P1B23
Hybrid/Electric Vehicle Battery 31 Circuit Low Voltage
P1B23 is an OBD-II diagnostic trouble code meaning: Hybrid/Electric Vehicle Battery 31 Circuit Low Voltage. Common causes: problems with high voltage battery, damaged or corroded battery connections. Estimated repair cost: $56–556.
Symptoms
- Reduced vehicle power
- Switching to emergency mode
- Increased fuel consumption
- Check Engine Light Illuminates
- Problems charging the hybrid battery
Causes
- Problems with high voltage battery
- Damaged or corroded battery connections
- Charging circuit malfunction
- Problems with the hybrid system control module
- Malfunction of voltage sensors
How to Fix
- Check the condition of the high-voltage battery
- Inspect and clean battery connections
- Check the integrity of the charging circuit
- Test voltage sensors
- Diagnose the hybrid system control module
Related codes
FAQ
What does the P1B23 code mean?
P1B23 is an OBD-II diagnostic trouble code that indicates: Hybrid/Electric Vehicle Battery 31 Circuit Low Voltage
What causes a P1B23 error code?
The most common causes of P1B23 include: Problems with high voltage battery; Damaged or corroded battery connections; Charging circuit malfunction; Problems with the hybrid system control module.
How do I fix a P1B23 diagnostic trouble code?
To fix P1B23: Check the condition of the high-voltage battery. Inspect and clean battery connections. Check the integrity of the charging circuit. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P1B23?
Do not drive — repair immediately
How much does it cost to fix P1B23?
The estimated repair cost for P1B23 is $56–556. Actual cost depends on your vehicle, location, and labor rates.
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