Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means the car's computer is having trouble reading the battery's voltage correctly because the signal is not stable. It's like when your TV remote sometimes works and sometimes doesn't because the batteries are loose.
The vehicle's control module is receiving an intermittent or erratic signal from the voltage sense circuit J of the hybrid or electric vehicle battery.
The P0B6C code is triggered when the Powertrain Control Module (PCM), Battery Energy Control Module, or related control module detects an intermittent or erratic voltage signal from the battery voltage sense circuit J. This can affect the vehicle's ability to monitor and control the battery's state of charge effectively.
• Check Engine Light illuminated
• Reduced fuel efficiency
• Possible battery charging issues
• Loose or corroded battery connections
• Faulty battery voltage sensor
• Damaged wiring or connectors in the voltage sense circuit
PCM: Powertrain Control Module
OBD-II: On-Board Diagnostics II
• Inspect battery connections for looseness or corrosion.
• Check the wiring and connectors in the voltage sense circuit for damage.
• Test the battery voltage sensor for proper operation.
• Tighten or clean battery connections.
• Repair or replace damaged wiring or connectors.
• Replace the faulty battery voltage sensor if necessary.
• Multimeter
• OBD-II scanner
• Basic hand tools
$100 - $500
Moderate
• Toyota Prius
• Chevrolet Volt
• Nissan Leaf
• Regularly check and clean battery terminals.
• Inspect wiring for wear and tear.
• Ensure sensors are securely mounted.
Sensor Issue
• Avoid driving long distances until the issue is resolved.
• Consult a professional mechanic for accurate diagnosis.
Check with your vehicle manufacturer for warranty coverage on hybrid/EV battery components.
This code has become more common with the increasing number of hybrid and electric vehicles on the road.
Moderate – Address the issue soon to avoid potential battery performance problems.
Driving with a malfunctioning battery voltage sensor can lead to reduced vehicle performance and efficiency.
• Vehicle at operating temperature
• Battery fully charged
The battery voltage sense circuit is typically located near the hybrid/EV battery pack.
Q: Can I drive my car with this code?
A: It's possible to drive short distances, but it's best to have it checked soon to avoid further issues.
Q: Will this affect my car's performance?
A: Yes, it can lead to reduced fuel efficiency and potential charging issues.
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