Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that the car's computer has detected a problem with how it measures the voltage in the hybrid or electric vehicle's battery. It's like a teacher noticing that a student's test score doesn't make sense and needs to be checked.
The vehicle's control module monitors the voltage of the hybrid or electric vehicle battery. If it detects an abnormal voltage reading from the sensor in circuit G, it triggers the P0B59 code.
The P0B59 code is set when the Powertrain Control Module (PCM) or Battery Energy Control Module (BECM) detects an out-of-range voltage condition in the voltage sensing circuit labeled 'G' for the hybrid/EV battery. This could be due to a faulty sensor, wiring issues, or a problem with the battery itself.
• Check Engine Light is on
• Reduced fuel efficiency
• Limited power or performance
• Faulty battery voltage sensor
• Damaged or corroded wiring/connectors
• Battery pack malfunction
PCM: Powertrain Control Module
BECM: Battery Energy Control Module
• Use an OBD-II scanner to confirm the code.
• Inspect the battery voltage sensor and related wiring for damage.
• Test the battery pack for proper voltage levels.
• Replace the faulty battery voltage sensor.
• Repair or replace damaged wiring/connectors.
• Service or replace the battery pack if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$200 - $800
Moderate
• Toyota Prius
• Chevrolet Volt
• Nissan Leaf
• Regular maintenance checks on the battery system.
• Ensure connectors and wiring are free from corrosion.
• Monitor battery performance regularly.
Sensor Issue
• Avoid driving the vehicle if performance is significantly reduced.
• Consult a professional mechanic for accurate diagnosis and repair.
Battery and related components may be covered under the vehicle's hybrid/EV warranty.
This code has become more common with the increased prevalence of hybrid and electric vehicles, highlighting the importance of battery management systems.
Moderate – While the vehicle may still be drivable, performance issues could worsen if not addressed.
Ignoring this code may lead to reduced vehicle performance and potential safety risks. Always address OBD-II codes promptly.
• Vehicle at operating temperature
• Battery fully charged
The battery voltage sensor is typically located near the hybrid or EV battery pack, often in the rear of the vehicle.
Q: Can I drive with a P0B59 code?
A: It's possible to drive short distances, but it's not recommended as it may lead to further issues.
Q: Is this code covered under warranty?
A: It may be covered under the vehicle's hybrid/EV warranty, depending on the terms and conditions.
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