P0B89
Hybrid/EV Battery Voltage Sense P Circuit High
P0B89 is an OBD-II diagnostic trouble code meaning: Hybrid/EV Battery Voltage Sense P Circuit High. Common causes: p circuit voltage sensor malfunction, damaged or corroded measurement circuit wiring. Estimated repair cost: $56–278.
Symptoms
- The check engine or hybrid system light comes on
- Hybrid system power reduction
- Reduced electric range
- Irregular operation of the hybrid system
- Error messages on the display
Causes
- P circuit voltage sensor malfunction
- Damaged or corroded measurement circuit wiring
- Problems with connectors in the measuring circuit
- Battery management module malfunction
- Problems with balancing battery cells
How to Fix
- Check the integrity of the wiring and connectors of circuit P
- Test P circuit voltage sensors
- Check the operation of the battery management module
- Perform battery cell balancing diagnostics
- If necessary, replace faulty components
Related codes
Error P0B89 by Vehicle Brand
FAQ
What does the P0B89 code mean?
P0B89 is an OBD-II diagnostic trouble code that indicates: Hybrid/EV Battery Voltage Sense P Circuit High
What causes a P0B89 error code?
The most common causes of P0B89 include: P circuit voltage sensor malfunction; Damaged or corroded measurement circuit wiring; Problems with connectors in the measuring circuit; Battery management module malfunction.
How do I fix a P0B89 diagnostic trouble code?
To fix P0B89: Check the integrity of the wiring and connectors of circuit P. Test P circuit voltage sensors. Check the operation of the battery management module. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P0B89?
Do not drive — repair immediately
How much does it cost to fix P0B89?
The estimated repair cost for P0B89 is $56–278. Actual cost depends on your vehicle, location, and labor rates.
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