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 the battery's voltage sensor. It's like when a toy's battery meter shows that the battery is low, but the battery is actually fine. The sensor is giving a wrong reading.
The P0B92 code indicates that the voltage sensed by the Hybrid/EV battery's voltage sensor is lower than expected. This could be due to a fault in the sensor circuit or the sensor itself.
The P0B92 code is triggered when the Powertrain Control Module (PCM) or Battery Energy Control Module (BECM) detects a low voltage condition in the Hybrid/EV battery voltage sense circuit 'R'. This could be due to a wiring issue, a faulty sensor, or a problem within the battery pack itself.
• Check Engine Light is on
• Reduced fuel efficiency
• Possible reduced power or performance
• Faulty battery voltage sensor
• Damaged or corroded wiring or connectors
• Faulty Battery Energy Control Module (BECM)
PCM: Powertrain Control Module
BECM: Battery Energy Control Module
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors related to the battery voltage sensor.
• Test the battery voltage sensor for proper operation.
• Replace the faulty battery voltage sensor.
• Repair or replace damaged wiring or connectors.
• Replace the Battery Energy Control Module if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$150 - $500
Moderate
• Toyota Prius
• Chevrolet Volt
• Nissan Leaf
• Regularly inspect battery connections and wiring.
• Ensure battery maintenance is up-to-date.
• Avoid overloading the electrical system.
Sensor Issue
• Have the vehicle inspected by a professional if the Check Engine Light is on.
• Avoid driving the vehicle if performance is severely reduced.
Check with the vehicle manufacturer for warranty coverage on hybrid battery components.
The P0B92 code has been commonly reported in hybrid and electric vehicles as they age, often due to sensor degradation or wiring issues.
Moderate – It is important to address this issue to prevent potential performance problems.
Driving with a faulty battery sensor can lead to reduced vehicle performance and efficiency. It is advisable to address the issue promptly.
• Vehicle must be in a ready state.
• Battery system should be at normal operating temperature.
The battery voltage sensor is typically located within the battery pack or near the Battery Energy Control Module.
Q: Can I drive with a P0B92 code?
A: It's possible to drive short distances, but it's recommended to have the issue checked to avoid further problems.
Q: How do I reset the P0B92 code?
A: The code can be reset using an OBD-II scanner after the issue is fixed, but it may come back if the problem persists.
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