P1B2A
Hybrid/Electric Vehicle Battery 29 Circuit
P1B2A is an OBD-II diagnostic trouble code meaning: Hybrid/Electric Vehicle Battery 29 Circuit. Common causes: open or short circuit in circuit no. 29, damage to the insulation of high-voltage wires. Estimated repair cost: $56–278.
Symptoms
- Check Engine light comes on
- Hybrid system power reduction
- The car goes into emergency mode
- Increased fuel consumption
- Error message on the dashboard
Causes
- Open or short circuit in circuit No. 29
- Damage to the insulation of high-voltage wires
- Corrosion of contacts in connectors
- Battery control unit malfunction
- Problems with relays or circuit fuses
How to Fix
- Check the integrity of circuit No. 29 of the high-voltage battery
- Inspect the condition of connectors and contacts
- Check the condition of the insulation of high-voltage wires
- Test the battery control unit
- Repair only from an authorized dealer
Related codes
FAQ
What does the P1B2A code mean?
P1B2A is an OBD-II diagnostic trouble code that indicates: Hybrid/Electric Vehicle Battery 29 Circuit
What causes a P1B2A error code?
The most common causes of P1B2A include: Open or short circuit in circuit No. 29; Damage to the insulation of high-voltage wires; Corrosion of contacts in connectors; Battery control unit malfunction.
How do I fix a P1B2A diagnostic trouble code?
To fix P1B2A: Check the integrity of circuit No. 29 of the high-voltage battery. Inspect the condition of connectors and contacts. Check the condition of the insulation of high-voltage wires. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P1B2A?
Limited driving only, diagnose soon
How much does it cost to fix P1B2A?
The estimated repair cost for P1B2A is $56–278. Actual cost depends on your vehicle, location, and labor rates.
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