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 a sensor that checks the voltage of the hybrid or electric vehicle battery. It's like a thermometer that tells you the temperature is broken, so you can't know if it's too hot or cold.
The P0B5C code indicates that the voltage reading from the battery voltage sense circuit 'G' is higher than the expected range. This could be due to a fault in the circuit, sensor, or the battery itself.
The P0B5C code is triggered when the Powertrain Control Module (PCM) or Battery Energy Control Module (BECM) detects a voltage reading from the battery voltage sense circuit 'G' that is higher than the specified range. This could be caused by a short circuit, faulty sensor, or issues within the battery pack.
• Check Engine Light is on
• Reduced fuel economy
• Limited power output
• Faulty battery voltage sensor
• Short circuit in the voltage sense wiring
• Defective battery pack
PCM: Powertrain Control Module
BECM: Battery Energy Control Module
• Use an OBD-II scanner to confirm the code.
• Inspect the battery voltage sense wiring for damage.
• Test the battery voltage sensor for proper operation.
• Replace the faulty battery voltage sensor.
• Repair or replace damaged wiring.
• Replace the defective battery pack if necessary.
• OBD-II scanner
• Multimeter
• Wiring repair kit
$200 - $800
Moderate
• Toyota Prius
• Chevrolet Volt
• Nissan Leaf
• Regularly inspect battery connections.
• Ensure proper maintenance of the hybrid/EV system.
• Avoid extreme temperature exposure.
Sensor Issue
• Do not ignore the Check Engine Light.
• Have the vehicle inspected by a professional.
• Avoid driving long distances until the issue is resolved.
Repairs may be covered under the vehicle's hybrid/EV system warranty. Check with the manufacturer.
This code has been more common in older hybrid models due to wear and tear on sensors and wiring.
Moderate – The vehicle may still operate, but performance is affected and further damage could occur if not addressed.
Driving with a malfunctioning hybrid/EV system can lead to reduced performance and potential safety hazards.
• Vehicle at operating temperature
• Battery at normal charge level
The battery voltage sensor is typically located near the battery pack in the vehicle.
Q: Can I drive my car with a P0B5C code?
A: It's not recommended to drive for long distances as it can affect vehicle performance and potentially cause further damage.
Q: How do I reset the P0B5C code?
A: After addressing the issue, you can reset the code using an OBD-II scanner. However, if the problem persists, the code will reappear.
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